[Ocfs2-users] Periodic hangs

[Emil Noether]

Hi,

thank you for the reply. Are you sure with this command?, because when I 
run

find /proc -name stack

I get no output. But I'm running this command when the server is OK. I 
can't cause the hang right now, because it is 21:00 here so it is a 
"prime time" of my web and my customers are already quite upset. But I 
can try it tommorow morning.

Regards,
Emil Noether

On 10/15/2010 07:22 PM, Sunil Mushran wrote:
> Take a stack trace of the hang. If you are on 2.6.32, you could do:
>
> # find /proc -name stack | while read A ; do D=$(dirname $A); echo $A; 
> cat $D/cmdline; echo ; cat $A; echo ; done;
>
> Attach the output to a bugzilla on oss.oracle.com.
>
> On 10/15/2010 08:16 AM, Emil Noether wrote:
>> Hi,
>>
>> I have a SATABoy2 Nexan storage with 8 disks (SATA Hitachi 
>> HUA721075KLA330) connected to raid 6.  Two image servers and two 
>> webservers. Image servers are connected to storage via iSCSI (1GBit) 
>> and webservers are connected via fibre (QLogic ISP2432-based 4Gb). 
>> There is ocfs2 filesystem on the storage disk. When I disconnect 
>> webserver1 (identical with webserver2) everything is ok. But when I 
>> do "/etc/init.d/o2cb start", even without mounting the storage disk 
>> (so webserver is actually doing nothing) my project is down every 
>> aprox 30 minutes for aprox 2 minutes.
>>
>> To describe what is down: There is no problem on image servers, but 
>> there is a problem on webserver2. Mounted ocfs2 disk is not 
>> responding (I can't run even "df" command), so load goes to aprox 400 
>> and number of running apaches reaches it's maximum and so on. The web 
>> page is not responding.
>>
>> I store all of my logs on local disks so not on ocfs2 disk.
>>
>> I use 2.6.32 kernel on servers, but I have already tried change it to 
>> some another, but with no result.
>>
>> I use ocfs2-tools in version 1.4.1-1.
>>
>> My distro is Debian Lenny (5.0.6) x64.
>>
>> My /etc/default/o2cb:
>> O2CB_ENABLED=true
>> O2CB_BOOTCLUSTER=ocfs2
>> O2CB_HEARTBEAT_THRESHOLD=14
>> O2CB_IDLE_TIMEOUT_MS=10000
>> O2CB_KEEPALIVE_DELAY_MS=5000
>> O2CB_RECONNECT_DELAY_MS=2000
>>
>> My /etc/ocfs2/cluster.conf:
>> node:
>>   ip_port = 7777
>>   ip_address = 10.0.0.111
>>   number = 0
>>   name = www1
>>   cluster = ocfs2
>>
>> node:
>>   ip_port = 7777
>>   ip_address = 10.0.0.112
>>   number = 1
>>   name = ww2
>>   cluster = ocfs2
>>
>> node:
>>   ip_port = 7777
>>   ip_address = 10.0.0.121
>>   number = 2
>>   name = img1
>>   cluster = ocfs2
>>
>> node:
>>   ip_port = 7777
>>   ip_address = 10.0.0.122
>>   number = 3
>>   name = img2
>>   cluster = ocfs2
>>
>> cluster:
>>   node_count = 4
>>   name = ocfs2
>>
>>
>> Any help is very appreciated,
>> Best Regards,
>>
>> Emil Noether
>>
>>
>> _______________________________________________
>> Ocfs2-users mailing list
>> Ocfs2-users at oss.oracle.com
>> http://oss.oracle.com/mailman/listinfo/ocfs2-users
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://oss.oracle.com/pipermail/ocfs2-users/attachments/20101015/229ccdf4/attachment.html