[Orca-users] Orca runs out of memory

[rhfreeman at micron.com]

Do you know how much memory orca is using when it dies?

As it is running on x86 box, it is only 32-bit so can only handle 2GB of
data memory by default.

You may wish to try another kernel. I've got Redhat 7.2 upto 2.7GB of
data memory on a standard Redhat kernel.

I think there is a build option in the kernel to make this upto 3.5GB of
memory, if you fancy building your own kernel.

Otherwise, split them out! :-) Or get a 64-bit machine to run it on!

Rich

> -----Original Message-----
> From: orca-users-bounces+rhfreeman=micron.com at orcaware.com 
> [mailto:orca-users-bounces+rhfreeman=micron.com at orcaware.com] 
> On Behalf Of Michael Banker
> Sent: Monday, December 15, 2003 9:27 PM
> To: orca-users at orcaware.com
> Subject: [Orca-users] Orca runs out of memory
> 
> 
> Anyone else running Orca with large numbers of hosts?  We 
> have thousands of servers running orcallator (solaris) and 
> procollator (linux and aix) broken down into around 15 
> groups.  One particular group has over 1,600 hosts.  At some 
> point as the number of hosts reached this number, the orca 
> server process started exiting without updating the 
> index.html.  This is now consistently happening... it 
> processes for 5-6 hours and just dies with an Out of Memory 
> error (see stack trace below.)
> 
> This orca server runs on a Compaq DL580G2 with 16GB of ram, 
> and 1GB swap.  When the process dies the server is not 
> swapping, so that doesn't seem to be an issue.
> 
> The remaining groups are fine... the most hosts in any of the 
> other groups is around 1,300, and there are two other groups 
> with around 700 hosts.  All these groups are able to process 
> the new data and update the index.html for that group.
> 
> Any ideas short of breaking down the larger group into smaller groups?
> 
> Thanks.
> 
> -- stack trace before proc exits --
> mmap2(NULL, 2097152, PROT_NONE, 
> MAP_PRIVATE|MAP_ANONYMOUS|MAP_NORESERVE, -1, 0) = -1 ENOMEM
> (Cannot allocate memory)
> mmap2(NULL, 1048576, PROT_NONE, 
> MAP_PRIVATE|MAP_ANONYMOUS|MAP_NORESERVE, -1, 0) = -1 ENOMEM
> (Cannot allocate memory)
> mmap2(NULL, 4096, PROT_READ|PROT_WRITE, 
> MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = -1 ENOMEM (Canno
> t allocate memory)
> brk(0x40000000)                         = 0x3ffff000
> mmap2(NULL, 2097152, PROT_NONE, 
> MAP_PRIVATE|MAP_ANONYMOUS|MAP_NORESERVE, -1, 0) = -1 ENOMEM
> (Cannot allocate memory)
> mmap2(NULL, 1048576, PROT_NONE, 
> MAP_PRIVATE|MAP_ANONYMOUS|MAP_NORESERVE, -1, 0) = -1 ENOMEM
> (Cannot allocate memory)
> mmap2(NULL, 4096, PROT_READ|PROT_WRITE, 
> MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = -1 ENOMEM (Canno
> t allocate memory)
> munmap(0xa9900000, 1048576)             = 0
> munmap(0x40a17000, 524288)              = 0
> munmap(0x583df000, 16384)               = 0
> write(2, "Out of memory!\n", 15)        = 15
> munmap(0xbff8f000, 4096)                = 0
> munmap(0xbff8e000, 4096)                = 0
> munmap(0xbff8c000, 4096)                = 0
> munmap(0xbff8b000, 4096)                = 0
> munmap(0xbff8a000, 4096)                = 0
> munmap(0xbff89000, 4096)                = 0
> munmap(0xbff88000, 4096)                = 0
> 
> 
> -- 
>   Michael Banker | Deutsche Bank | Parsippany, NJ | 973-606-3732
> 
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