[Ocfs-users] Q: Copy/Move of a to OCFS file system causing system hang

[Wim Coekaerts]

you should use cp or mv with o_direct, use the coreutils on our website,
if you are not already doing so.

I would assume the prod server has more ram than the dev one ? 

On Mon, Jan 31, 2005 at 09:15:46PM -0500, Ramgrid at aol.com wrote:
> Greetings,
> We were looking for some advise on an OCFS hang: Out of memory error.
> We are on red hat version 3 , kernel 2.4.21-27.0.1.ELsmp  and ocfs  1.0.13-1.
>  
> If we  try to move/copy a 5GB compressed file into a ocfs file system,  the 
> command gets killed by kernel after 70% of work with the following log in  
> /var/og/messages:
>  
> Jan 31 16:02:41 conrep-d04 kernel: 4177919 pages of RAM
> Jan 31 16:02:41  conrep-d04 kernel: 3817463 pages of HIGHMEM
> Jan 31 16:02:41 conrep-d04  kernel: 205990 reserved pages
> Jan 31 16:02:41 conrep-d04 kernel: 1146612  pages shared
> Jan 31 16:02:41 conrep-d04 kernel: 0 pages swap cached
> Jan 31  16:02:41 conrep-d04 kernel: Out of Memory: Killed process 3595 (bash).
> Jan 31  16:02:41 conrep-d04 kernel: Out of Memory: Killed process 3595 (bash).
> Jan 31  16:02:41 conrep-d04 kernel: Fixed up OOM kill of mm-less task
> Jan 31 16:17:04  conrep-d04 syslogd 1.4.1: restart.
>  
>  
> This process has worked for us in development. We have copied 100GB of  files 
> in development.
>  We are transitioning to production to new HP Linux servers. However,  we are 
> stuck with this error. We are waiting on Oracle support tar  4282257.999.
>  
> Meanwhile, Any advise on what to look for the memory management error. The  
> system is idle. the cp or mv is the only command.
>  
> OCFS details
> ocfs partition/fs size 1 TB
> number of ocfs partitions/node 25
> number of nodes 8
> block size 128
>  
> Is kernel kernel .2.4.21-27.0.1.ELsmp  an issue? Development is on  
> 2.4.21-27.0.2ELSMP.
>  
>  
> thanks

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