Barton, Linda
2014-04-15 17:58:45 UTC
UPDATE:
I checked with the AIX guys and they said it should be dynamic, that the "file" should be able to get the space when it needed it.
I tested by putting messages to the queue to make it go over the 1 gig size, it failed.
So I deleted and redefined the queue and did the same test, it failed at 1 gig again.
Then I did it on a server that had been rebooted since the Ulimit -f change and I was able to get to the 2 gig size.
So, a reboot or a restart of the queue manager is required. Not sure about the qmgr restart because I did not test it.
Linda Barton
From: MQSeries List [mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org] On Behalf Of Tim Zielke
Sent: Wednesday, February 12, 2014 9:31 AM
To: MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org
Subject: Re: AIX ulimits filesize of 4194304 - 2 gig queue size?
It would definitely be best for Linda to check with the AIX support team to get a definitive answer.
Maybe there is something MQ is storing internally that needs to be reset with a queue deletion/recreation, but it does not make sense to me why this would be needed. A user resource limit like max file size is specific to a process. When the process gets created, this value gets stored in a data structure and then the operating system will check this value when the process tries to do system calls (i.e write) to increase the file size. If the operating system detects that the system call would bring the file size over the max limit, it fails the system call and returns an error code to the process. So it does not make sense to me why a file would need to be deleted/created based on a user resource limit change like max file size. But maybe I am missing something. It wouldn't be the first time. :)
Thanks,
Tim
From: MQSeries List [mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org] On Behalf Of Jefferson Lowrey
Sent: Wednesday, February 12, 2014 8:18 AM
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Subject: Re: AIX ulimits filesize of 4194304 - 2 gig queue size?
To the best of my - albeit limited and outdated - knowledge, ulimit changes do not affect existing files. So you would need to delete and recreate the queues because you need to delete and recreate the q storage files.
It's worth a review with your AIX support team.
Thank you,
Jeff Lowrey
From: "Barton, Linda" <LINDA.BARTON-FtnPrPJGdgViKvMTaIzqBXzNABE0Ld/***@public.gmane.org<mailto:LINDA.BARTON-FtnPrPJGdgViKvMTaIzqBXzNABE0Ld/***@public.gmane.org>>
To: MQSERIES-JX7+OpRa80QeFbOYke1v4oOpTq8/***@public.gmane.org<mailto:MQSERIES-JX7+OpRa80Ties2YCUG/***@public.gmane.orgniwien.ac.at>,
Date: 02/12/2014 09:09 AM
Subject: Re: [MQSERIES] AIX ulimits filesize of 4194304 - 2 gig queue size?
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________________________________
The UNIX team updated the AIX /etc/security/limits for mqm. I imagine they forgot to execute the chuser command to implement the change because on one server, the setting is OK, but when I issue the Ulimit -f command, it still shows the old value.
I am pretty sure I need to delete/define any existing queues that I want to have pick up the higher limit. I forget where I read this...
Linda Barton
-----Original Message-----
From: MQSeries List [mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org] On Behalf Of Tim Zielke
Sent: Tuesday, February 11, 2014 6:14 PM
To: MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org<mailto:MQSERIES-0lvw86wZMd9k/***@public.gmane.orgAC.AT>
Subject: Re: AIX ulimits filesize of 4194304 - 2 gig queue size?
Hi Linda,
Do you have more details in how the file size resource limit change for mqm was implemented?
Did a Unix systems administrator perform the change? If so, they could better speak to the effect of what was done, but more than likely the queue manager would have to be restarted for new processes to pick up that file size resource limit change. At least that is what I would anticipate.
Or did you update a queue manager start up script to set the ulimit before starting the queue manager? In this case, I would assume a restart of the queue manager would be required, as well.
I am not aware of a way to dynamically inject a resource limit change into a running process, but maybe that does exist on Unix systems like AIX.
You shouldn't need to delete/define any files. You are changing a file size resource limit, and resource limits are specific to a process, not to a file. Any new mqm processes should pick up the increased file size resource limit and then be able to create larger files.
Thanks,
Tim
-----Original Message-----
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Subject: Re: AIX ulimits filesize of 4194304 - 2 gig queue size?
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So now that I have Ulimit -f set to 4194304 on my servers for mqm, I believ=
e I only have to delete/define the queues that need to take advantage of th=
e larger size. Would there be a reason to recycle the queue manager? Mayb=
e for the log files?
Linda Barton
From: Barton, Linda
Sent: Thursday, January 30, 2014 4:59 PM
To: 'MQSeries List'
Subject: RE: AIX ulimits filesize of 4194304 - 2 gig queue size?
They use 4194302 and not 4194304. Not sure why.
Linda Barton
Liberty Mutual Insurance
From: MQSeries List [mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org] On Behalf O=
f Tim Zielke
Sent: Thursday, January 30, 2014 4:52 PM
To: MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org<mailto:MQSERIES-0lvw86wZMd9k/***@public.gmane.orgAC.AT>
Subject: Re: AIX ulimits filesize of 4194304 - 2 gig queue size?
You're welcome. Incidentally, 4,194,304 x 512 =3D 2,147,483,648 (2 gigabyt=
es). I wonder if they meant to say 4,194,304 in their tech note, but maybe=
they had a reason for going slightly under 2 gig.
From: MQSeries List [mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org] On Behalf O=
f Barton, Linda
Sent: Thursday, January 30, 2014 3:42 PM
To: MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org<mailto:MQSERIES-0lvw86wZMd9k/***@public.gmane.org=
AC.AT>
Subject: Re: AIX ulimits filesize of 4194304 - 2 gig queue size?
Ah HA!
Thanks!
Linda Barton
Liberty Mutual Insurance
From: MQSeries List [mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org] On Behalf O=
f Tim Zielke
Sent: Thursday, January 30, 2014 4:38 PM
To: MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org<mailto:MQSERIES-0lvw86wZMd9k/***@public.gmane.org=
AC.AT>
Subject: Re: AIX ulimits filesize of 4194304 - 2 gig queue size?
Hi Linda,
To answer your question:
"My question is, how can "The user file limit of 4194302 will allow a 2 Gi=
gabyte queue file. "?
4194302 is 4 megabytes..."
It looks like in AIX that ulimit -f is in 512 byte blocks. So 4194302 x 51=
2 =3D 2,147,482,624 bytes (which is very close to 2 gigabytes).
Thanks,
Tim
From: MQSeries List [mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org] On Behalf O=
f Barton, Linda
Sent: Thursday, January 30, 2014 3:26 PM
To: MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org<mailto:MQSERIES-0lvw86wZMd9k/***@public.gmane.org=
AC.AT>
Subject: Re: AIX ulimits filesize of 4194304 - 2 gig queue size?
Great! Thanks. I will look in to that.
Linda Barton
Liberty Mutual Insurance
From: MQSeries List [mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org] On Behalf O=
f Coombs, Lawrence
Sent: Thursday, January 30, 2014 12:37 PM
To: MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org<mailto:MQSERIES-0lvw86wZMd9k/***@public.gmane.org=
AC.AT>
Subject: Re: AIX ulimits filesize of 4194304 - 2 gig queue size?
Create file systems with large file support
The standard file system on AIX has a 2 GB file size limit, regardless of t=
he ulimit setting. One way to enable files larger than the 2 GB limit is to=
create the file system with the Large File Enabled option. This option can=
be found through the Add a Journaled File System option of the smit menu. =
Refer to AIX documentation for additional information and file system optio=
ns.
We set ours to: unlimited
From: MQSeries List [mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org] On Behalf O=
f Barton, Linda
Sent: Thursday, January 30, 2014 10:30 AM
To: MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org<mailto:MQSERIES-0lvw86wZMd9k/***@public.gmane.org=
AC.AT>
Subject: AIX ulimits filesize of 4194304 - 2 gig queue size?
Hi, My applications are sending some large messages and getting the MQRC 20=
56 error code. The fs space is ok so I need to increase the Ulimit -f to a=
n acceptable size. It is currently set to 2097151. The largest message I =
have seen so far is 3888786 bytes. We don't get the error for every messag=
e that exceeds the 2097151 file size, so there must be some translation, or=
maybe 2097151 is in blocks?
Can someone help clear this up for me?
Thanks!
I read this technote:
http://www-01.ibm.com/support/docview.wss?uid=3Dswg21194240 which is pasted=
below.
My question is, how can "The user file limit of 4194302 will allow a 2 Giga=
byte queue file. "?
4194302 is 4 megabytes...
WMQ error code 2056 Queue space not available on an MQPUT
Technote (troubleshooting)
Problem(Abstract)
You put a message to a Websphere MQ (WMQ) queue, and the following is retur=
ned to your application:
2056 0x00000808 MQRC_Q_SPACE_NOT_AVAILABLE
Cause
The user file limit restricted the size of the queue file.
Resolving the problem
Configure your file system for larger queue files
Set your hard file limit, if necessary, "ulimit -Hf 4194302".
Set your user file limit, "ulimit -f 4194302".
The user file limit of 4194302 will allow a 2 Gigabyte queue file.
Additional information
Command "df" reports a block size of 512.
Command "ulimit -f" reports a size < 4194302
Linda Barton
Liberty Mutual
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<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D">So now that I have Ulimit=
–f set to 4194304 on my servers for mqm, I believe I only have to de=
lete/define the queues that need to take advantage of the larger
size. Would there be a reason to recycle the queue manager? Ma=
ybe for the log files?<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D"><o:p> </o:p></span><=
/p>
<div>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:10.0pt;font-family:&q=
uot;Tahoma","sans-serif";color:navy"><o:p> </o:p></span=
uot;Tahoma","sans-serif";color:navy">Linda Barton</span></i>=
</b><span style=3D"font-size:11.0pt;font-family:"Calibri","s=
ans-serif";color:#1F497D">
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in;text-autospace:none"><span=
style=3D"font-size:11.0pt;font-family:"Calibri","sans-serif=
";color:black"><o:p> </o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D"><o:p> </o:p></span><=
/p>
</div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D"><o:p> </o:p></span><=
/p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b><span style=3D"font-si=
ze:10.0pt;font-family:"Tahoma","sans-serif"">From:</spa=
n></b><span style=3D"font-size:10.0pt;font-family:"Tahoma","=
sans-serif""> Barton, Linda
<br>
<b>Sent:</b> Thursday, January 30, 2014 4:59 PM<br>
<b>To:</b> 'MQSeries List'<br>
<b>Subject:</b> RE: AIX ulimits filesize of 4194304 - 2 gig queue size?<o:p=
</div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><o:p> </o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt;font-family:"Calibri","sans-serif";color:#1F497D=
">They use 4194302 and not 4194304. Not sure why.<o:p></o:p></span></=
p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt;font-family:"Calibri","sans-serif";color:#1F497D=
"><o:p> </o:p></span></p>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b><i><span style=3D"font=
-size:10.0pt;font-family:"Tahoma","sans-serif";color:na=
vy"><o:p> </o:p></span></i></b></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b><i><span style=3D"font=
-size:10.0pt;font-family:"Tahoma","sans-serif";color:na=
vy">Linda Barton</span></i></b><span style=3D"font-size:11.0pt;font-family:=
"Calibri","sans-serif";color:#1F497D">
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b><i><span style=3D"font=
-size:11.0pt;font-family:"Calibri","sans-serif";color:#=
1F497D">Liberty Mutual Insurance<o:p></o:p></span></i></b></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt;font-family:"Calibri","sans-serif";color:#1F497D=
"><o:p> </o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt;font-family:"Calibri","sans-serif";color:#1F497D=
"><o:p> </o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><b><span style=3D"font-s=
ize:10.0pt;font-family:"Tahoma","sans-serif"">From:</sp=
an></b><span style=3D"font-size:10.0pt;font-family:"Tahoma","=
;sans-serif""> MQSeries List [mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org=
T]
<b>On Behalf Of </b>Tim Zielke<br>
<b>Sent:</b> Thursday, January 30, 2014 4:52 PM<br>
<b>To:</b> MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org<br<mailto:***@LISTSERV.MEDUNIWIEN.AC.AT%3cbr>>
<b>Subject:</b> Re: AIX ulimits filesize of 4194304 - 2 gig queue size?<o:p=
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><o:p> </o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D">You're welcome. Incidentally, 4,194,304 x 512 =3D 2,147,483,648 (2=
gigabytes). I wonder if they meant to say 4,194,304 in their tech
note, but maybe they had a reason for going slightly under 2 gig.<o:p></o:=
p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"><o:p> </o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><b><span style=3D"font-s=
ize:10.0pt;font-family:"Tahoma","sans-serif"">From:</sp=
an></b><span style=3D"font-size:10.0pt;font-family:"Tahoma","=
;sans-serif""> MQSeries List [<a href=3D"mailto:MQSERIES-0lvw86wZMd8cuUN+***@public.gmane.orgDU=
NIWIEN.AC.AT">mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org</a>]
<b>On Behalf Of </b>Barton, Linda<br>
<b>Sent:</b> Thursday, January 30, 2014 3:42 PM<br>
<b>To:</b> <a href=3D"mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org">***@L=
ISTSERV.MEDUNIWIEN.AC.AT</a><br>
<b>Subject:</b> Re: AIX ulimits filesize of 4194304 - 2 gig queue size?<o:p=
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><o:p> </o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D">Ah HA!<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D">Thanks!<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"><o:p> </o:p></span></p>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><b><i><span style=3D"fon=
t-size:10.0pt;font-family:"Tahoma","sans-serif";color:n=
avy"><o:p> </o:p></span></i></b></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><b><i><span style=3D"fon=
t-size:10.0pt;font-family:"Tahoma","sans-serif";color:n=
avy">Linda Barton</span></i></b><span style=3D"font-size:11.0pt;font-family=
:"Calibri","sans-serif";color:#1F497D">
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><b><i><span style=3D"fon=
t-size:11.0pt;font-family:"Calibri","sans-serif";color:=
#1F497D">Liberty Mutual Insurance<o:p></o:p></span></i></b></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in;text-autospace:none"><spa=
n style=3D"font-size:11.0pt;font-family:"Calibri","sans-seri=
f";color:black"><o:p> </o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"><o:p> </o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"><o:p> </o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><b><span style=3D"font-s=
ize:10.0pt;font-family:"Tahoma","sans-serif"">From:</sp=
an></b><span style=3D"font-size:10.0pt;font-family:"Tahoma","=
;sans-serif""> MQSeries List [<a href=3D"mailto:MQSERIES-0lvw86wZMd8cuUN+***@public.gmane.orgDU=
NIWIEN.AC.AT">mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org</a>]
<b>On Behalf Of </b>Tim Zielke<br>
<b>Sent:</b> Thursday, January 30, 2014 4:38 PM<br>
<b>To:</b> <a href=3D"mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org">***@L=
ISTSERV.MEDUNIWIEN.AC.AT</a><br>
<b>Subject:</b> Re: AIX ulimits filesize of 4194304 - 2 gig queue size?<o:p=
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><o:p> </o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D">Hi Linda,<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"><o:p> </o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D">To answer your question:<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"><o:p> </o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"> "My question is, how can “The user file limit of 419430=
2 will allow a 2 Gigabyte queue file. “?<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"> <o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D">4194302 is 4 megabytes…"<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"><o:p> </o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D">It looks like in AIX that ulimit -f is in 512 byte blocks. So 4194=
302 x 512 =3D 2,147,482,624 bytes (which is very close to 2 gigabytes).<o:p=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"><o:p> </o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D">Thanks,<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D">Tim<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"><o:p> </o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"><o:p> </o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><b><span style=3D"font-s=
ize:10.0pt;font-family:"Tahoma","sans-serif"">From:</sp=
an></b><span style=3D"font-size:10.0pt;font-family:"Tahoma","=
;sans-serif""> MQSeries List [<a href=3D"mailto:MQSERIES-0lvw86wZMd8cuUN+***@public.gmane.orgDU=
NIWIEN.AC.AT">mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org</a>]
<b>On Behalf Of </b>Barton, Linda<br>
<b>Sent:</b> Thursday, January 30, 2014 3:26 PM<br>
<b>To:</b> <a href=3D"mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org">***@L=
ISTSERV.MEDUNIWIEN.AC.AT</a><br>
<b>Subject:</b> Re: AIX ulimits filesize of 4194304 - 2 gig queue size?<o:p=
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><o:p> </o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D">Great! Thanks. I will look in to that.
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"><o:p> </o:p></span></p>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><b><i><span style=3D"fon=
t-size:10.0pt;font-family:"Tahoma","sans-serif";color:n=
avy"><o:p> </o:p></span></i></b></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><b><i><span style=3D"fon=
t-size:10.0pt;font-family:"Tahoma","sans-serif";color:n=
avy">Linda Barton</span></i></b><span style=3D"font-size:11.0pt;font-family=
:"Calibri","sans-serif";color:#1F497D">
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><b><i><span style=3D"fon=
t-size:11.0pt;font-family:"Calibri","sans-serif";color:=
#1F497D">Liberty Mutual Insurance<o:p></o:p></span></i></b></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in;text-autospace:none"><spa=
n style=3D"font-size:11.0pt;font-family:"Calibri","sans-seri=
f";color:black"><o:p> </o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"><o:p> </o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"><o:p> </o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b><span style=3D"font-s=
ize:10.0pt;font-family:"Tahoma","sans-serif"">From:</sp=
an></b><span style=3D"font-size:10.0pt;font-family:"Tahoma","=
;sans-serif""> MQSeries List [<a href=3D"mailto:MQSERIES-0lvw86wZMd8cuUN+***@public.gmane.orgDU=
NIWIEN.AC.AT">mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org</a>]
<b>On Behalf Of </b>Coombs, Lawrence<br>
<b>Sent:</b> Thursday, January 30, 2014 12:37 PM<br>
<b>To:</b> <a href=3D"mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org">***@L=
ISTSERV.MEDUNIWIEN.AC.AT</a><br>
<b>Subject:</b> Re: AIX ulimits filesize of 4194304 - 2 gig queue size?<o:p=
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><o:p> </o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span class=3D"postheadi=
ng11"><span style=3D"font-size:11.5pt;font-family:"Arial","s=
ans-serif"">Create file systems with large file support</span></span><=
span style=3D"font-size:9.0pt;font-family:"Arial","sans-seri=
f";color:#888888"><br>
<br>
<span class=3D"posttext1">The standard file system on AIX has a 2 GB file s=
ize limit, regardless of the
<b>ulimit</b> setting. One way to enable files larger than the 2 GB limit i=
s to create the file system with the
<b>Large File Enabled option</b>. This option can be found through the <b>A=
dd a Journaled File System</b> option of the smit menu. Refer to AIX docume=
ntation for additional information and file system options.<o:p></o:p></spa=
n></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span class=3D"posttext1=
"><span style=3D"font-size:9.0pt;font-family:"Arial","sans-s=
erif""><o:p> </o:p></span></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span class=3D"posttext1=
"><span style=3D"font-size:9.0pt;font-family:"Arial","sans-s=
erif"">We set ours to: unlimited</span></span><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"><o:p> </o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b><span style=3D"font-s=
ize:10.0pt;font-family:"Tahoma","sans-serif"">From:</sp=
an></b><span style=3D"font-size:10.0pt;font-family:"Tahoma","=
;sans-serif""> MQSeries List [<a href=3D"mailto:MQSERIES-0lvw86wZMd8cuUN+***@public.gmane.orgDU=
NIWIEN.AC.AT">mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org</a>]
<b>On Behalf Of </b>Barton, Linda<br>
<b>Sent:</b> Thursday, January 30, 2014 10:30 AM<br>
<b>To:</b> <a href=3D"mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org">***@L=
ISTSERV.MEDUNIWIEN.AC.AT</a><br>
<b>Subject:</b> AIX ulimits filesize of 4194304 - 2 gig queue size?<o:p></o=
:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><o:p> </o:p></p>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">Hi, My appl=
ications are sending some large messages and getting the MQRC 2056 error co=
de. The fs space is ok so I need to increase the Ulimit –f
to an acceptable size. It is currently set to 2097151. The lar=
gest message I have seen so far is 3888786 bytes. We don’t get =
the error for every message that exceeds the 2097151 file size, so there mu=
st be some translation, or maybe 2097151 is in blocks?
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">Can someone=
help clear this up for me?<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">Thanks!<o:p=
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">I read this=
technote:
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""><a href=3D"=
http://www-01.ibm.com/support/docview.wss?uid=3Dswg21194240">http://www-01.=<http://www-01.=/>
ibm.com/support/docview.wss?uid=3Dswg21194240</a> which is pasted
below. <o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">My question=
is, how can “<span style=3D"color:red">The user file limit of 419430=
2 will allow a 2 Gigabyte queue file. “?</span><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">4194302 is =
4 megabytes…<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">WMQ error c=
ode 2056 Queue space not available on an MQPUT<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">Technote (t=
roubleshooting)<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">Problem(Abs=
tract)<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">You put a m=
essage to a Websphere MQ (WMQ) queue, and the following is returned to your=
application:<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">2056 0x0000=
0808 MQRC_Q_SPACE_NOT_AVAILABLE
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">Cause<o:p><=
/o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">The user fi=
le limit restricted the size of the queue file.<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">Resolving t=
he problem<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">Configure y=
our file system for larger queue files<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">Set your ha=
rd file limit, if necessary, "ulimit -Hf 4194302".
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">Set your us=
er file limit, "ulimit -f 4194302".<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:red">T=
he user file limit of 4194302 will allow a 2 Gigabyte queue file.
</span><span style=3D"font-size:11.0pt;font-family:"Calibri",&quo=
t;sans-serif""><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">Additional =
information
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">Command &qu=
ot;df" reports a block size of 512.
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">Command &qu=
ot;ulimit -f" reports a size < 4194302<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:navy">=
</span><span style=3D"font-size:11.0pt;font-family:"Calibri"=
;,"sans-serif""><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b><i><span style=3D"fon=
t-size:10.0pt;font-family:"Tahoma","sans-serif";color:n=
avy">Linda Barton</span></i></b><span style=3D"font-size:11.0pt;font-family=
:"Calibri","sans-serif";color:black">
</span><span style=3D"font-size:11.0pt;font-family:"Calibri",&quo=
t;sans-serif""><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">Liberty Mut=
ual<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
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<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><o:p> </o:p></p>
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I checked with the AIX guys and they said it should be dynamic, that the "file" should be able to get the space when it needed it.
I tested by putting messages to the queue to make it go over the 1 gig size, it failed.
So I deleted and redefined the queue and did the same test, it failed at 1 gig again.
Then I did it on a server that had been rebooted since the Ulimit -f change and I was able to get to the 2 gig size.
So, a reboot or a restart of the queue manager is required. Not sure about the qmgr restart because I did not test it.
Linda Barton
From: MQSeries List [mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org] On Behalf Of Tim Zielke
Sent: Wednesday, February 12, 2014 9:31 AM
To: MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org
Subject: Re: AIX ulimits filesize of 4194304 - 2 gig queue size?
It would definitely be best for Linda to check with the AIX support team to get a definitive answer.
Maybe there is something MQ is storing internally that needs to be reset with a queue deletion/recreation, but it does not make sense to me why this would be needed. A user resource limit like max file size is specific to a process. When the process gets created, this value gets stored in a data structure and then the operating system will check this value when the process tries to do system calls (i.e write) to increase the file size. If the operating system detects that the system call would bring the file size over the max limit, it fails the system call and returns an error code to the process. So it does not make sense to me why a file would need to be deleted/created based on a user resource limit change like max file size. But maybe I am missing something. It wouldn't be the first time. :)
Thanks,
Tim
From: MQSeries List [mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org] On Behalf Of Jefferson Lowrey
Sent: Wednesday, February 12, 2014 8:18 AM
To: MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org<mailto:MQSERIES-0lvw86wZMd9k/***@public.gmane.orgAC.AT>
Subject: Re: AIX ulimits filesize of 4194304 - 2 gig queue size?
To the best of my - albeit limited and outdated - knowledge, ulimit changes do not affect existing files. So you would need to delete and recreate the queues because you need to delete and recreate the q storage files.
It's worth a review with your AIX support team.
Thank you,
Jeff Lowrey
From: "Barton, Linda" <LINDA.BARTON-FtnPrPJGdgViKvMTaIzqBXzNABE0Ld/***@public.gmane.org<mailto:LINDA.BARTON-FtnPrPJGdgViKvMTaIzqBXzNABE0Ld/***@public.gmane.org>>
To: MQSERIES-JX7+OpRa80QeFbOYke1v4oOpTq8/***@public.gmane.org<mailto:MQSERIES-JX7+OpRa80Ties2YCUG/***@public.gmane.orgniwien.ac.at>,
Date: 02/12/2014 09:09 AM
Subject: Re: [MQSERIES] AIX ulimits filesize of 4194304 - 2 gig queue size?
Sent by: MQSeries List <MQSERIES-JX7+OpRa80QeFbOYke1v4oOpTq8/***@public.gmane.org<mailto:MQSERIES-JX7+OpRa80QeFbOYke1v4oOpTq8/***@public.gmane.org>>
________________________________
The UNIX team updated the AIX /etc/security/limits for mqm. I imagine they forgot to execute the chuser command to implement the change because on one server, the setting is OK, but when I issue the Ulimit -f command, it still shows the old value.
I am pretty sure I need to delete/define any existing queues that I want to have pick up the higher limit. I forget where I read this...
Linda Barton
-----Original Message-----
From: MQSeries List [mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org] On Behalf Of Tim Zielke
Sent: Tuesday, February 11, 2014 6:14 PM
To: MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org<mailto:MQSERIES-0lvw86wZMd9k/***@public.gmane.orgAC.AT>
Subject: Re: AIX ulimits filesize of 4194304 - 2 gig queue size?
Hi Linda,
Do you have more details in how the file size resource limit change for mqm was implemented?
Did a Unix systems administrator perform the change? If so, they could better speak to the effect of what was done, but more than likely the queue manager would have to be restarted for new processes to pick up that file size resource limit change. At least that is what I would anticipate.
Or did you update a queue manager start up script to set the ulimit before starting the queue manager? In this case, I would assume a restart of the queue manager would be required, as well.
I am not aware of a way to dynamically inject a resource limit change into a running process, but maybe that does exist on Unix systems like AIX.
You shouldn't need to delete/define any files. You are changing a file size resource limit, and resource limits are specific to a process, not to a file. Any new mqm processes should pick up the increased file size resource limit and then be able to create larger files.
Thanks,
Tim
-----Original Message-----
From: MQSeries List [mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org] On Behalf Of Barton, Linda
Sent: Tuesday, February 11, 2014 2:33 PM
To: MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org<mailto:MQSERIES-0lvw86wZMd9k/***@public.gmane.orgAC.AT>
Subject: Re: AIX ulimits filesize of 4194304 - 2 gig queue size?
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So now that I have Ulimit -f set to 4194304 on my servers for mqm, I believ=
e I only have to delete/define the queues that need to take advantage of th=
e larger size. Would there be a reason to recycle the queue manager? Mayb=
e for the log files?
Linda Barton
From: Barton, Linda
Sent: Thursday, January 30, 2014 4:59 PM
To: 'MQSeries List'
Subject: RE: AIX ulimits filesize of 4194304 - 2 gig queue size?
They use 4194302 and not 4194304. Not sure why.
Linda Barton
Liberty Mutual Insurance
From: MQSeries List [mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org] On Behalf O=
f Tim Zielke
Sent: Thursday, January 30, 2014 4:52 PM
To: MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org<mailto:MQSERIES-0lvw86wZMd9k/***@public.gmane.orgAC.AT>
Subject: Re: AIX ulimits filesize of 4194304 - 2 gig queue size?
You're welcome. Incidentally, 4,194,304 x 512 =3D 2,147,483,648 (2 gigabyt=
es). I wonder if they meant to say 4,194,304 in their tech note, but maybe=
they had a reason for going slightly under 2 gig.
From: MQSeries List [mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org] On Behalf O=
f Barton, Linda
Sent: Thursday, January 30, 2014 3:42 PM
To: MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org<mailto:MQSERIES-0lvw86wZMd9k/***@public.gmane.org=
AC.AT>
Subject: Re: AIX ulimits filesize of 4194304 - 2 gig queue size?
Ah HA!
Thanks!
Linda Barton
Liberty Mutual Insurance
From: MQSeries List [mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org] On Behalf O=
f Tim Zielke
Sent: Thursday, January 30, 2014 4:38 PM
To: MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org<mailto:MQSERIES-0lvw86wZMd9k/***@public.gmane.org=
AC.AT>
Subject: Re: AIX ulimits filesize of 4194304 - 2 gig queue size?
Hi Linda,
To answer your question:
"My question is, how can "The user file limit of 4194302 will allow a 2 Gi=
gabyte queue file. "?
4194302 is 4 megabytes..."
It looks like in AIX that ulimit -f is in 512 byte blocks. So 4194302 x 51=
2 =3D 2,147,482,624 bytes (which is very close to 2 gigabytes).
Thanks,
Tim
From: MQSeries List [mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org] On Behalf O=
f Barton, Linda
Sent: Thursday, January 30, 2014 3:26 PM
To: MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org<mailto:MQSERIES-0lvw86wZMd9k/***@public.gmane.org=
AC.AT>
Subject: Re: AIX ulimits filesize of 4194304 - 2 gig queue size?
Great! Thanks. I will look in to that.
Linda Barton
Liberty Mutual Insurance
From: MQSeries List [mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org] On Behalf O=
f Coombs, Lawrence
Sent: Thursday, January 30, 2014 12:37 PM
To: MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org<mailto:MQSERIES-0lvw86wZMd9k/***@public.gmane.org=
AC.AT>
Subject: Re: AIX ulimits filesize of 4194304 - 2 gig queue size?
Create file systems with large file support
The standard file system on AIX has a 2 GB file size limit, regardless of t=
he ulimit setting. One way to enable files larger than the 2 GB limit is to=
create the file system with the Large File Enabled option. This option can=
be found through the Add a Journaled File System option of the smit menu. =
Refer to AIX documentation for additional information and file system optio=
ns.
We set ours to: unlimited
From: MQSeries List [mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org] On Behalf O=
f Barton, Linda
Sent: Thursday, January 30, 2014 10:30 AM
To: MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org<mailto:MQSERIES-0lvw86wZMd9k/***@public.gmane.org=
AC.AT>
Subject: AIX ulimits filesize of 4194304 - 2 gig queue size?
Hi, My applications are sending some large messages and getting the MQRC 20=
56 error code. The fs space is ok so I need to increase the Ulimit -f to a=
n acceptable size. It is currently set to 2097151. The largest message I =
have seen so far is 3888786 bytes. We don't get the error for every messag=
e that exceeds the 2097151 file size, so there must be some translation, or=
maybe 2097151 is in blocks?
Can someone help clear this up for me?
Thanks!
I read this technote:
http://www-01.ibm.com/support/docview.wss?uid=3Dswg21194240 which is pasted=
below.
My question is, how can "The user file limit of 4194302 will allow a 2 Giga=
byte queue file. "?
4194302 is 4 megabytes...
WMQ error code 2056 Queue space not available on an MQPUT
Technote (troubleshooting)
Problem(Abstract)
You put a message to a Websphere MQ (WMQ) queue, and the following is retur=
ned to your application:
2056 0x00000808 MQRC_Q_SPACE_NOT_AVAILABLE
Cause
The user file limit restricted the size of the queue file.
Resolving the problem
Configure your file system for larger queue files
Set your hard file limit, if necessary, "ulimit -Hf 4194302".
Set your user file limit, "ulimit -f 4194302".
The user file limit of 4194302 will allow a 2 Gigabyte queue file.
Additional information
Command "df" reports a block size of 512.
Command "ulimit -f" reports a size < 4194302
Linda Barton
Liberty Mutual
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<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D">So now that I have Ulimit=
–f set to 4194304 on my servers for mqm, I believe I only have to de=
lete/define the queues that need to take advantage of the larger
size. Would there be a reason to recycle the queue manager? Ma=
ybe for the log files?<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D"><o:p> </o:p></span><=
/p>
<div>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:10.0pt;font-family:&q=
uot;Tahoma","sans-serif";color:navy"><o:p> </o:p></span=
</i></b></p>
<p class=3D"MsoNormal"><b><i><span style=3D"font-size:10.0pt;font-family:&q=uot;Tahoma","sans-serif";color:navy">Linda Barton</span></i>=
</b><span style=3D"font-size:11.0pt;font-family:"Calibri","s=
ans-serif";color:#1F497D">
<o:p></o:p></span></p>
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style=3D"font-size:11.0pt;font-family:"Calibri","sans-serif=
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<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D"><o:p> </o:p></span><=
/p>
</div>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt;font-family:"Ca=
libri","sans-serif";color:#1F497D"><o:p> </o:p></span><=
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0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b><span style=3D"font-si=
ze:10.0pt;font-family:"Tahoma","sans-serif"">From:</spa=
n></b><span style=3D"font-size:10.0pt;font-family:"Tahoma","=
sans-serif""> Barton, Linda
<br>
<b>Sent:</b> Thursday, January 30, 2014 4:59 PM<br>
<b>To:</b> 'MQSeries List'<br>
<b>Subject:</b> RE: AIX ulimits filesize of 4194304 - 2 gig queue size?<o:p=
</o:p></span></p>
</div></div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><o:p> </o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt;font-family:"Calibri","sans-serif";color:#1F497D=
">They use 4194302 and not 4194304. Not sure why.<o:p></o:p></span></=
p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt;font-family:"Calibri","sans-serif";color:#1F497D=
"><o:p> </o:p></span></p>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b><i><span style=3D"font=
-size:10.0pt;font-family:"Tahoma","sans-serif";color:na=
vy"><o:p> </o:p></span></i></b></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b><i><span style=3D"font=
-size:10.0pt;font-family:"Tahoma","sans-serif";color:na=
vy">Linda Barton</span></i></b><span style=3D"font-size:11.0pt;font-family:=
"Calibri","sans-serif";color:#1F497D">
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b><i><span style=3D"font=
-size:11.0pt;font-family:"Calibri","sans-serif";color:#=
1F497D">Liberty Mutual Insurance<o:p></o:p></span></i></b></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt;font-family:"Calibri","sans-serif";color:#1F497D=
"><o:p> </o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><span style=3D"font-size:=
11.0pt;font-family:"Calibri","sans-serif";color:#1F497D=
"><o:p> </o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><b><span style=3D"font-s=
ize:10.0pt;font-family:"Tahoma","sans-serif"">From:</sp=
an></b><span style=3D"font-size:10.0pt;font-family:"Tahoma","=
;sans-serif""> MQSeries List [mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org=
T]
<b>On Behalf Of </b>Tim Zielke<br>
<b>Sent:</b> Thursday, January 30, 2014 4:52 PM<br>
<b>To:</b> MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org<br<mailto:***@LISTSERV.MEDUNIWIEN.AC.AT%3cbr>>
<b>Subject:</b> Re: AIX ulimits filesize of 4194304 - 2 gig queue size?<o:p=
</o:p></span></p>
</div></div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><o:p> </o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D">You're welcome. Incidentally, 4,194,304 x 512 =3D 2,147,483,648 (2=
gigabytes). I wonder if they meant to say 4,194,304 in their tech
note, but maybe they had a reason for going slightly under 2 gig.<o:p></o:=
p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"><o:p> </o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><b><span style=3D"font-s=
ize:10.0pt;font-family:"Tahoma","sans-serif"">From:</sp=
an></b><span style=3D"font-size:10.0pt;font-family:"Tahoma","=
;sans-serif""> MQSeries List [<a href=3D"mailto:MQSERIES-0lvw86wZMd8cuUN+***@public.gmane.orgDU=
NIWIEN.AC.AT">mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org</a>]
<b>On Behalf Of </b>Barton, Linda<br>
<b>Sent:</b> Thursday, January 30, 2014 3:42 PM<br>
<b>To:</b> <a href=3D"mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org">***@L=
ISTSERV.MEDUNIWIEN.AC.AT</a><br>
<b>Subject:</b> Re: AIX ulimits filesize of 4194304 - 2 gig queue size?<o:p=
</o:p></span></p>
</div></div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><o:p> </o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D">Ah HA!<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D">Thanks!<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"><o:p> </o:p></span></p>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><b><i><span style=3D"fon=
t-size:10.0pt;font-family:"Tahoma","sans-serif";color:n=
avy"><o:p> </o:p></span></i></b></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><b><i><span style=3D"fon=
t-size:10.0pt;font-family:"Tahoma","sans-serif";color:n=
avy">Linda Barton</span></i></b><span style=3D"font-size:11.0pt;font-family=
:"Calibri","sans-serif";color:#1F497D">
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><b><i><span style=3D"fon=
t-size:11.0pt;font-family:"Calibri","sans-serif";color:=
#1F497D">Liberty Mutual Insurance<o:p></o:p></span></i></b></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in;text-autospace:none"><spa=
n style=3D"font-size:11.0pt;font-family:"Calibri","sans-seri=
f";color:black"><o:p> </o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"><o:p> </o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"><o:p> </o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><b><span style=3D"font-s=
ize:10.0pt;font-family:"Tahoma","sans-serif"">From:</sp=
an></b><span style=3D"font-size:10.0pt;font-family:"Tahoma","=
;sans-serif""> MQSeries List [<a href=3D"mailto:MQSERIES-0lvw86wZMd8cuUN+***@public.gmane.orgDU=
NIWIEN.AC.AT">mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org</a>]
<b>On Behalf Of </b>Tim Zielke<br>
<b>Sent:</b> Thursday, January 30, 2014 4:38 PM<br>
<b>To:</b> <a href=3D"mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org">***@L=
ISTSERV.MEDUNIWIEN.AC.AT</a><br>
<b>Subject:</b> Re: AIX ulimits filesize of 4194304 - 2 gig queue size?<o:p=
</o:p></span></p>
</div></div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><o:p> </o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D">Hi Linda,<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"><o:p> </o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D">To answer your question:<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"><o:p> </o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"> "My question is, how can “The user file limit of 419430=
2 will allow a 2 Gigabyte queue file. “?<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"> <o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D">4194302 is 4 megabytes…"<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"><o:p> </o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D">It looks like in AIX that ulimit -f is in 512 byte blocks. So 4194=
302 x 512 =3D 2,147,482,624 bytes (which is very close to 2 gigabytes).<o:p=
</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"><o:p> </o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D">Thanks,<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D">Tim<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"><o:p> </o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"><o:p> </o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><b><span style=3D"font-s=
ize:10.0pt;font-family:"Tahoma","sans-serif"">From:</sp=
an></b><span style=3D"font-size:10.0pt;font-family:"Tahoma","=
;sans-serif""> MQSeries List [<a href=3D"mailto:MQSERIES-0lvw86wZMd8cuUN+***@public.gmane.orgDU=
NIWIEN.AC.AT">mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org</a>]
<b>On Behalf Of </b>Barton, Linda<br>
<b>Sent:</b> Thursday, January 30, 2014 3:26 PM<br>
<b>To:</b> <a href=3D"mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org">***@L=
ISTSERV.MEDUNIWIEN.AC.AT</a><br>
<b>Subject:</b> Re: AIX ulimits filesize of 4194304 - 2 gig queue size?<o:p=
</o:p></span></p>
</div></div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><o:p> </o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D">Great! Thanks. I will look in to that.
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"><o:p> </o:p></span></p>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><b><i><span style=3D"fon=
t-size:10.0pt;font-family:"Tahoma","sans-serif";color:n=
avy"><o:p> </o:p></span></i></b></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><b><i><span style=3D"fon=
t-size:10.0pt;font-family:"Tahoma","sans-serif";color:n=
avy">Linda Barton</span></i></b><span style=3D"font-size:11.0pt;font-family=
:"Calibri","sans-serif";color:#1F497D">
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><b><i><span style=3D"fon=
t-size:11.0pt;font-family:"Calibri","sans-serif";color:=
#1F497D">Liberty Mutual Insurance<o:p></o:p></span></i></b></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in;text-autospace:none"><spa=
n style=3D"font-size:11.0pt;font-family:"Calibri","sans-seri=
f";color:black"><o:p> </o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"><o:p> </o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:1.5in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"><o:p> </o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b><span style=3D"font-s=
ize:10.0pt;font-family:"Tahoma","sans-serif"">From:</sp=
an></b><span style=3D"font-size:10.0pt;font-family:"Tahoma","=
;sans-serif""> MQSeries List [<a href=3D"mailto:MQSERIES-0lvw86wZMd8cuUN+***@public.gmane.orgDU=
NIWIEN.AC.AT">mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org</a>]
<b>On Behalf Of </b>Coombs, Lawrence<br>
<b>Sent:</b> Thursday, January 30, 2014 12:37 PM<br>
<b>To:</b> <a href=3D"mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org">***@L=
ISTSERV.MEDUNIWIEN.AC.AT</a><br>
<b>Subject:</b> Re: AIX ulimits filesize of 4194304 - 2 gig queue size?<o:p=
</o:p></span></p>
</div></div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><o:p> </o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span class=3D"postheadi=
ng11"><span style=3D"font-size:11.5pt;font-family:"Arial","s=
ans-serif"">Create file systems with large file support</span></span><=
span style=3D"font-size:9.0pt;font-family:"Arial","sans-seri=
f";color:#888888"><br>
<br>
<span class=3D"posttext1">The standard file system on AIX has a 2 GB file s=
ize limit, regardless of the
<b>ulimit</b> setting. One way to enable files larger than the 2 GB limit i=
s to create the file system with the
<b>Large File Enabled option</b>. This option can be found through the <b>A=
dd a Journaled File System</b> option of the smit menu. Refer to AIX docume=
ntation for additional information and file system options.<o:p></o:p></spa=
n></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span class=3D"posttext1=
"><span style=3D"font-size:9.0pt;font-family:"Arial","sans-s=
erif""><o:p> </o:p></span></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span class=3D"posttext1=
"><span style=3D"font-size:9.0pt;font-family:"Arial","sans-s=
erif"">We set ours to: unlimited</span></span><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D"><o:p> </o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b><span style=3D"font-s=
ize:10.0pt;font-family:"Tahoma","sans-serif"">From:</sp=
an></b><span style=3D"font-size:10.0pt;font-family:"Tahoma","=
;sans-serif""> MQSeries List [<a href=3D"mailto:MQSERIES-0lvw86wZMd8cuUN+***@public.gmane.orgDU=
NIWIEN.AC.AT">mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org</a>]
<b>On Behalf Of </b>Barton, Linda<br>
<b>Sent:</b> Thursday, January 30, 2014 10:30 AM<br>
<b>To:</b> <a href=3D"mailto:MQSERIES-0lvw86wZMd9k/bWDasg6f+***@public.gmane.org">***@L=
ISTSERV.MEDUNIWIEN.AC.AT</a><br>
<b>Subject:</b> AIX ulimits filesize of 4194304 - 2 gig queue size?<o:p></o=
:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><o:p> </o:p></p>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">Hi, My appl=
ications are sending some large messages and getting the MQRC 2056 error co=
de. The fs space is ok so I need to increase the Ulimit –f
to an acceptable size. It is currently set to 2097151. The lar=
gest message I have seen so far is 3888786 bytes. We don’t get =
the error for every message that exceeds the 2097151 file size, so there mu=
st be some translation, or maybe 2097151 is in blocks?
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">Can someone=
help clear this up for me?<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">Thanks!<o:p=
</o:p></span></p>
</div><div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">I read this=
technote:
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""><a href=3D"=
http://www-01.ibm.com/support/docview.wss?uid=3Dswg21194240">http://www-01.=<http://www-01.=/>
ibm.com/support/docview.wss?uid=3Dswg21194240</a> which is pasted
below. <o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">My question=
is, how can “<span style=3D"color:red">The user file limit of 419430=
2 will allow a 2 Gigabyte queue file. “?</span><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">4194302 is =
4 megabytes…<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">WMQ error c=
ode 2056 Queue space not available on an MQPUT<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">Technote (t=
roubleshooting)<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">Problem(Abs=
tract)<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">You put a m=
essage to a Websphere MQ (WMQ) queue, and the following is returned to your=
application:<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">2056 0x0000=
0808 MQRC_Q_SPACE_NOT_AVAILABLE
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">Cause<o:p><=
/o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">The user fi=
le limit restricted the size of the queue file.<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">Resolving t=
he problem<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">Configure y=
our file system for larger queue files<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">Set your ha=
rd file limit, if necessary, "ulimit -Hf 4194302".
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">Set your us=
er file limit, "ulimit -f 4194302".<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:red">T=
he user file limit of 4194302 will allow a 2 Gigabyte queue file.
</span><span style=3D"font-size:11.0pt;font-family:"Calibri",&quo=
t;sans-serif""><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">Additional =
information
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">Command &qu=
ot;df" reports a block size of 512.
<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">Command &qu=
ot;ulimit -f" reports a size < 4194302<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif";color:navy">=
</span><span style=3D"font-size:11.0pt;font-family:"Calibri"=
;,"sans-serif""><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><b><i><span style=3D"fon=
t-size:10.0pt;font-family:"Tahoma","sans-serif";color:n=
avy">Linda Barton</span></i></b><span style=3D"font-size:11.0pt;font-family=
:"Calibri","sans-serif";color:black">
</span><span style=3D"font-size:11.0pt;font-family:"Calibri",&quo=
t;sans-serif""><o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif"">Liberty Mut=
ual<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><span style=3D"font-size=
:11.0pt;font-family:"Calibri","sans-serif""> <o:p>=
</o:p></span></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:2.0in"><o:p> </o:p></p>
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