[Ocfs-devel] Re: URGENT: OCFS2 hang - 32 node cluster POC

[Sunil Mushran]

Run:
# top
# vmstat 1
# iostat -x /dev/emcpowerb 1

The latter two you can save to a file. For top, just monitor cpu usage
and see if any process is hogging all of it.

Colin Laird wrote:
> and the fstab settings:
>
> # This file is edited by fstab-sync - see 'man fstab-sync' for details
> /dev/VolGroup00/LogVol01 /                       ext3    
> defaults        1 1
> LABEL=/boot             /boot                   ext3    
> defaults        1 2
> none                    /dev/pts                devpts  
> gid=5,mode=620  0 0
> none                    /dev/shm                tmpfs   
> defaults        0 0
> /dev/VolGroup00/LogVol02 /home                   ext3    
> defaults        1 2
> none                    /proc                   proc    
> defaults        0 0
> none                    /sys                    sysfs   
> defaults        0 0
> /dev/VolGroup00/LogVol00 swap                    swap    
> defaults        0 0
> /dev/emcpowerb          /ocfs2                  ocfs2   
> _netdev         0 0
> /dev/hda                /media/cdrom            auto    
> pamconsole,exec,noauto,managed 0 0
> /dev/fd0                /media/floppy           auto    
> pamconsole,exec,noauto,managed 0 0
>
> We are not storing the voting disk and cluster reg for RAC in here.
>
> Thanks
>
>
> Colin Laird wrote:
>> Hi,
>>
>> We are in the middle of a very large bid (Centrelink, Australia) with 
>> time at a premium.  So PLEASE HELP.  we have been experiencing 
>> machine hangs whenever we do large copies (5-18G) into OCFS2.  Either 
>> from ftp or local disk.  The whole machine just freezes and we need 
>> to run off and on.  we now cannot get the data available for the POC 
>> across the nodes!
>>
>> The setup is:
>>
>> 32 clustered Dell 6850 nodes running RHEL4 U3 - Linux 
>> c2.au.oracle.com 2.6.9-34.ELsmp #1 SMP Fri Feb 24 16:56:28 EST 2006 
>> x86_64 x86_64 x86_64 GNU/Linux
>>
>> We have the following ocfs2 packages installed:
>> ocfs2-2.6.9-34.ELsmp-1.2.3-1
>> ocfs2-2.6.9-34.EL-1.2.3-1
>> ocfs2-tools-debuginfo-1.2.1-1
>> ocfs2-2.6.9-34.ELlargesmp-1.2.3-1
>> ocfs2console-1.2.1-1
>> ocfs2-tools-1.2.1-1
>>
>> We have* elevator=deadline* set as per instructions too.
>>
>> We are currently looking for a log to see if we can find anything.  
>> The system and ftp logs show nothing.
>>
>> Can anyone provide any pointers?  Have we missed applying anything?
>>
>> Thanks,
>>
>> -- 
>> Colin Laird
>> Principal Solutions Consultant
>>
>> Oracle New Zealand Ltd
>> Level 10
>> Todd Building
>> 93-97 Customhouse Quay
>> Wellington
>> New Zealand
>>
>> main: +64 4 978 5400
>> ddi:  +64 4 978 5423
>> mob:  +64 21 617 025
>> fax:  +64 4 978 5401 
>
> -- 
> Colin Laird
> Principal Solutions Consultant
>
> Oracle New Zealand Ltd
> Level 10
> Todd Building
> 93-97 Customhouse Quay
> Wellington
> New Zealand
>
> main: +64 4 978 5400
> ddi:  +64 4 978 5423
> mob:  +64 21 617 025
> fax:  +64 4 978 5401