transactional messages cannot take advantage of the put to waiting getter
optimization.
Persistent non-transactional messages can take advantage of that
optimization (non-transactional put to non-transactional get). There's no
reliability with a non-transactional get, and hence little to no purpose
in using a persistent message in that environment.
From: "T.Rob" <***@IOPTCONSULTING.COM>
To: ***@listserv.meduniwien.ac.at,
Date: 23/01/2014 19:11
Subject: Re: Utility to read WMQ log files ..
Sent by: MQSeries List <***@listserv.meduniwien.ac.at>
Aren't there are optimizations to cover cases where a transactional
message doesn't need to be logged? The PUT-to-waiting-GETter comes to mind
but I don't recall if that's just z. Anyway, the standard answer to this
question used to be that if you do parse the logs, don't assume a missing
message means there was no message.
Kind regards,
-- T.Rob
From: MQSeries List [mailto:***@LISTSERV.MEDUNIWIEN.AC.AT] On Behalf
Of Andrew Hickson
Sent: Thursday, January 23, 2014 13:54 PM
To: ***@LISTSERV.MEDUNIWIEN.AC.AT
Subject: Re: Utility to read WMQ log files ..
If you're using linear logging then the dmpmqlog command will allow you to
format the MQ recovery logs and effectively display the messages that were
put to queues. It's a pretty raw implementation and not as easy to match
puts to gets etc as you might like, but all of the transactional
persistent message data will appear in the logs, with the relative
transaction details.
From: "Potkay, Peter M (CTO and Service Mgmt)" <
***@THEHARTFORD.COM>
To: ***@listserv.meduniwien.ac.at,
Date: 23/01/2014 18:39
Subject: Re: Utility to read WMQ log files ..
Sent by: MQSeries List <***@listserv.meduniwien.ac.at>
Officially, no, there is no IBM provided way to do this, unless you are on
z/OS.
A vendor called Cressida makes a product called Cressida Request for
Websphere MQ that allows you into the MQ logs on mid tier platforms. Iâve
not used the product myself.
Peter Potkay
From: MQSeries List [mailto:***@LISTSERV.MEDUNIWIEN.AC.AT] On Behalf
Of Coombs, Lawrence
Sent: Thursday, January 23, 2014 1:12 PM
To: ***@LISTSERV.MEDUNIWIEN.AC.AT
Subject: Re: Utility to read WMQ log files ..
Are there any utilities to read the WMQ log files and recreate the
messages that were put to the log files? At least display them? An
application person asked me if I could dump the MQ log files and send
them all the transactions that were processed between a certain time
frame. When I asked why didnât their application log at least a summary
of the transactions, they said they did, but wanted to rule out any MQ
issues.
I said get lost (in a nice way), but now I am curious if this is doable.
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