IDS Forum

Re: running onstat commands against a shared m....

Posted By: ART KAGEL, BLOOMBERG/ 731 LEXIN
Date: Friday, 22 September 2006, at 8:36 a.m.

In Response To: Re: running onstat commands against a shared m.... (Peter J Diaz de Leon)

On a box with lots of virtual memory (swap) but it will be VEERRRYYYY
SSSLLLOOOWWW.

Art S. Kagel
----- Original Message -----
From: Peter J Diaz De Leon <ids@iiug.org>
At: 9/22 5:42:59

Yeah it's on the same box. It the only box currently with 6GB on it.
Is there anyway to run the onstat on a box with less memory?

-Peter

Mark Jamison wrote:

>Is it on the same box as the instance itself?
>
>Because onstat against a dump file has to load the entire file into memory.
>
>So if you have 6 Gig, and 4 Gig is already taken by the informix instance,
you
>will get error -28 attempting to load the segment.
>
>----- Original Message ----
>From: Peter J Diaz de Leon <pdiazdeleon@infinityhealthcare.com>
>To: ids@iiug.org
>Sent: Thursday, September 21, 2006 1:38:36 PM
>Subject: Re: running onstat commands against a shared m.... [7518]
>
>The ulimit is set to "unlimited."
>
>The the two shared memory dumps are both 4317282304 in size.
>Well over any 2GB limit. The file system in uses is EXT3.
>
>Ideas?
>Thanks
>Peter
>
>Mark Jamison wrote:
>
>
>>Two Questions,
>>
>>#1 What is your ulimit set to?
>>IN most cases the default is around 200 MB, is that smaller than the size of
>>your shared memory.
>>
>>#2 I'm going to admit to a little Linux ignorance here, but on most other
>>
>>
>OS's
>
>
>>they have at least one file system that only allows a maximum file size of
>>2Gig, and that is usually the default file system. I know for example that
>>
>>
>you
>
>
>>need to set AIX to JFS2 in order to get larger than 2 Gig files on a file
>>system.
>>
>>----- Original Message ----
>>From: Peter J Diaz de Leon <pdiazdeleon@infinityhealthcare.com>
>>To: ids@iiug.org
>>Sent: Thursday, September 21, 2006 11:32:17 AM
>>Subject: running onstat commands against a shared memor.... [7513]
>>
>>OS:RH Linux 4.0 Patch 5 ES
>>Kernel: 2.6.9-42.ELsmp
>>IDS 10.00.FC5
>>6GB memory
>>2-CPU's
>>
>>The database had a assertion failure last night while executing some
>>nightly processes.
>>I opened a case with IBM and sent them the assert file. Then I asked
>>the support person
>>why I was unable to issue onstat commands against the shmem.*.* dump
>>files like I was
>>shown in an Informix down systems class several years ago. I was told
>>that running
>>onstat commands against the shmem dump file was unsupported. Is it?
>>
>>When I run onstat against the shmem dump file I receive the following error:
>>
>>[informix@billdb1 tmp]$ onstat -d shmem.483dd89.0
>>rinfile: shmget/shmat error (cnt 3758096384) errno=28
>>
>>Any ideas?
>>
>>Thanks
>>Peter
>>
>>
>>

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Messages In This Thread

• running onstat commands against a shared memory du
  Peter J Diaz de Leon -- Thursday, 21 September 2006, at 12:32 p.m.
  • RE: running onstat commands against a shared memor
    Clifton Bean -- Thursday, 21 September 2006, at 12:38 p.m.
    • Re: running onstat commands against a shared m....
      Peter J Diaz de Leon -- Thursday, 21 September 2006, at 12:44 p.m.
      • RE: running onstat commands against a shared m....
        Sebastian, Norma J. -- Thursday, 21 September 2006, at 1:02 p.m.
  • Re: running onstat commands against a shared memor
    Mark Jamison -- Thursday, 21 September 2006, at 1:34 p.m.
    • Re: running onstat commands against a shared m....
      Peter J Diaz de Leon -- Thursday, 21 September 2006, at 2:38 p.m.
      • Re: running onstat commands against a shared m....
        Mark Jamison -- Thursday, 21 September 2006, at 3:59 p.m.
        • Re: running onstat commands against a shared m....
          Peter J Diaz de Leon -- Friday, 22 September 2006, at 5:35 a.m.
          • Re: running onstat commands against a shared m....
            ART KAGEL, BLOOMBERG/ 731 LEXIN -- Friday, 22 September 2006, at 8:36 a.m.

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