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[LDM #NNE-789939]: Quick question: what is ipcs trying to tell me here?

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  • Subject: [LDM #NNE-789939]: Quick question: what is ipcs trying to tell me here?
  • Date: Wed, 18 Jul 2007 09:04:25 -0600
Gilbert,

> Quick question. DOing an "ipcs" as root gives me this:
> 
> ipcs
> 
> ------ Shared Memory Segments --------
> key        shmid      owner      perms      bytes      nattch     status
> 0x00000000 196608     ldm       600        384320     0
> 0x00000000 229377     ldm       600        512000     0
> 0x00000000 294914     ldm       600        384320     0
> 0x00000000 327683     ldm       600        512000     0
> 0x00000000 360452     ldm       600        393216     2          dest
> 0x00000000 393221     ldm       600        393216     2          dest
> 0x00000000 425990     ldm       600        393216     2          dest
> 0x00000000 458759     ldm       600        393216     2          dest
> 0x00000000 491528     ldm       600        393216     2          dest
> 0x00000000 524297     ldm       600        393216     2          dest
> 0x00000000 557066     ldm       600        393216     2          dest
> 0x00000000 589835     ldm       600        12288      2          dest
> 0x00000000 622604     ldm       600        12288      2          dest
> key        semid      owner      perms      nsems
> 0x00000000 491520     apache    600        1
> 0x00000000 32769      apache    600        1
> 0x00000000 524290     apache    600        1
> 0x00000000 557059     apache    600        1
> 0x00000000 589828     apache    600        1
> 0x00000000 622597     apache    600        1
> 0x00000000 655366     apache    600        1
> 0x00000000 688135     apache    600        1
> 
> ------ Message Queues --------
> key        msqid      owner      perms      used-bytes   messages
> 
> Is this good or bad? I know the LDM tries to do as much stuff in memory as
> possible. This is what is happening, correct?

All child LDM processes memory-map the product-queue.  While technically
not a shared memory segment, I suspect that the memory-mapped queue is
showing up in the "ipcs" output as such.

It's harmless.



Regards,
Steve Emmerson

Ticket Details
===================
Ticket ID: NNE-789939
Department: Support LDM
Priority: Normal
Status: Closed