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| brianb |
 Posted: Fri Jan 28, 2011 3:20 pm Post subject: Broker writing to /tmp since V7 install |
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Voyager
Joined: 12 May 2010
Posts: 85
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Hi
I am seeing the /tmp filesystem filling since installing WMBv7.0.0.2 on AIX 6.1
Is this new behavior or something new it fills the file system very quickly ?
DataFlowE 32243900 mqbrk 309r VREG 10,7 3863770 578 /tmp (/dev/hd3)
DataFlowE 32243900 mqbrk 310r VREG 10,7 134406 626 /tmp (/dev/hd3)
DataFlowE 32243900 mqbrk 311r VREG 10,7 5647316 654 /tmp (/dev/hd3)
any info would be appreciated
Thanks |
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| mqjeff |
| Posted: Fri Jan 28, 2011 5:50 pm Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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More info would be appreciated.
What files under /tmp are increasing in size? |
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| brianb |
| Posted: Fri Jan 28, 2011 5:54 pm Post subject: Broker writing to /tmp since V7 install |
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Voyager
Joined: 12 May 2010
Posts: 85
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Hi mqjeff
that would make it far to easy.. 
the only way to see what is increasing /tmp is to do a
lsof /tmp | grep DataFlow
which results in
DataFlowE 32243900 mqbrk 307r VREG 10,7 4034448 543 /tmp (/dev/hd3)
DataFlowE 32243900 mqbrk 309r VREG 10,7 3863770 578 /tmp (/dev/hd3)
DataFlowE 32243900 mqbrk 310r VREG 10,7 134406 626 /tmp (/dev/hd3)
DataFlowE 32243900 mqbrk 311r VREG 10,7 5647316 654 /tmp (/dev/hd3)
no files seem to be generated but space is consumed |
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| mqjeff |
| Posted: Fri Jan 28, 2011 6:04 pm Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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So what you're saying is, you can observe no noticable difference between two consecutive runs of ls -alr?
That's a little odd.
Perhaps you could open a PMR for that ...  |
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| brianb |
| Posted: Fri Jan 28, 2011 6:07 pm Post subject: |
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Voyager
Joined: 12 May 2010
Posts: 85
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| was just hoping that someone else is seeing the same behavior |
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| brianb |
| Posted: Fri Jan 28, 2011 6:13 pm Post subject: Broker writing to /tmp since V7 install |
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Voyager
Joined: 12 May 2010
Posts: 85
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just a note on the behavior
The space used seems to increase on each broker restart ie the space does not seem to get released |
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| mqjeff |
| Posted: Sat Jan 29, 2011 7:06 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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One technique for creating and managing virtual memory on unix systems is to create a file in /tmp and then use it as a memory area. It is left up to the OS to clean up this temporary flie after the process has finished.
I do not state that Broker v7 does this. There should be some comments on this in the Information Center somewhere, probably.
It's also not clear from what you've said that it is in fact the actual Broker product itself that is using this space on /tmp. It could be an application you've deployed into Broker - perhaps a flow that uses a JCN is creating temporary files.
This, again, is why it's important to determine what file or files are using the space.
It's also important to talk to your Unix admins about this. They may have configured the virtual memory system on the box to use files in /tmp, and broker is just taking advantage of that. And they certainly know what the policy for cleaning up temporary files in /tmp is, and can adjust it if it's not set correctly. |
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