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MQSeries.net Forum Index » General IBM MQ Support » Circular Logging Event Messages

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JosephGramig
PostPosted: Tue Apr 01, 2014 11:04 am    Post subject: Circular Logging Event Messages Reply with quote

Grand Master

Joined: 09 Feb 2006
Posts: 1244
Location: Gold Coast of Florida, USA

Is it possible to get event messages when a Qmgr starts using secondary logs?

I would like some warning before it runs out of log file space. Usually, I rely on file system monitoring to tell me when it is getting full. Unfortunately, in this case I have two Qmgrs sharing the file system and so it may run out of logs long before it exhausts space on the file system.
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gbaddeley
PostPosted: Wed Apr 02, 2014 1:13 pm    Post subject: Reply with quote

Jedi Knight

Joined: 25 Mar 2003
Posts: 2538
Location: Melbourne, Australia

AFAIK, No

You could monitor the number of file in the directory. When it exceeds the number of prim logs, your are using secondary logs.

Of course, the total file system size should always exceed the max space that could be used by all prim and sec logs combined!
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JosephGramig
PostPosted: Thu Apr 03, 2014 5:44 am    Post subject: Reply with quote

Grand Master

Joined: 09 Feb 2006
Posts: 1244
Location: Gold Coast of Florida, USA



Best Practice is for each Qmgr:
  1. separate the data path to a unique file system (done on crtmqm with -md)
  2. separate the log path to a unique file system (done on crtmqm with -ld)
  3. allocate enough primary logs to fill 70% of log file system
  4. account for enough secondary to almost fill the rest of log file system
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PeterPotkay
PostPosted: Thu Apr 03, 2014 7:11 am    Post subject: Reply with quote

Poobah

Joined: 15 May 2001
Posts: 7722

I think Logging Events would be interesting. Event when a new Linear Log is cut, or when a Secondary Circular is needed, or etc, etc, etc.

I don't have a dire need for them, but would vote for an RFE for them if such an RFE existed...
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Peter Potkay
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