[Ocfs2-users] High Load Average

[Sunil Mushran]

There is no ocfs2 1.4 for non-enterprise kernels. For all non-ent
distros, ocfs2 is part of the kernel. Read the 1.4 user's guide.
It explains the development process.

You will have to upgrade both node. Make sure they are both
running the same kernel/ocfs2.

Jeronimo Bezerra wrote:
> It seems that my only option is upgrade my kernel package..
>
> I only find 2.6.24 in this package: linux-image-2.6-amd64-etchnhalf .  
> I will study it better.
>
> Well, if I intent to upgrade, what´s your suggestion: upgrade in the  
> good server (B) or in problematic server (A)? Any chance of a file  
> system crash?
>
> My ocfs2-tools: 1.2.1-1.3
>
> I didn´t find 1.4 on debian apt.
>
> Thanks,
>
> Jeronimo
>
> Citando Sunil Mushran <sunil.mushran at oracle.com>:
>
>   
>> Debian etch is 2.6.24 based.
>>
>> Jeronimo Bezerra wrote:
>>     
>>> Hi Sunil, thanks for your answer.
>>>
>>> I use packages from Debian apt, and there is not new version of   
>>> kernel package :(. And I intend in this moment only solve this   
>>> problem to turn on my server again. What could I do? Is there   
>>> anything in this moment I can do?
>>>
>>> Another question: Can I upgrade my kernel just overwriting the   
>>> actual image? Is the any chance for crash my ocfs2 file system? Can  
>>>  I have two server with different kernel versions?
>>>
>>> Thanks for your attention,
>>>
>>> Jeronimo
>>>
>>> Sunil Mushran escreveu:
>>>
>>>       
>>>> 2.6.18 is a very old release. I would recommend upgrading to kernel
>>>> 2.6.21 or later.
>>>>
>>>> Jerônimo Bezerra wrote:
>>>>
>>>>         
>>>>> Hello all,
>>>>>
>>>>> I have a scenario here with two Debian 4.0 servers, kernel   
>>>>> 2.6.18-4-amd64, and ocfs2-tools 1.2.1-1.3.
>>>>> These two servers have 16 CPU (4 x Dual Core x HT) and 8GB RAM,   
>>>>> with shared storage with qla2340 in a IBM DS4500 Storage.
>>>>>
>>>>> Everything was working fine until yesterday at morning, when for   
>>>>> some unknown reason, the load average of both servers became too   
>>>>> high, almost 200. CPU utilization, on both, was 16-18%, and   
>>>>> memory using 7GB, uptime of 22 days. Disk I/0 using at least 3   
>>>>> MB/s. Pings to crossover interface (heartbeat) normally, no   
>>>>> packet loss.
>>>>>
>>>>> I use these servers as a mail server, and nobody could connect to  
>>>>>  servers because (I think) the high load average.
>>>>>
>>>>> Well, I reboot both servers, and after boot, same thing: in   
>>>>> question of minutes the load average was 150. But one interesting  
>>>>>  thing:
>>>>> when I shutdown the server A, the server B worked fine! If I turn  
>>>>>  on server A and shutdown server B, high load average on A. So,  
>>>>> as  I shutdown the server A and the things gone fine, I keep the   
>>>>> server A down for 8 hours. At afternoon, I turned on again, and,   
>>>>> surprise, high load on both servers when OCFS2 started. I had to   
>>>>> shutdown both servers and turn on just server B to established   
>>>>> again. At night, I turned on the server A to try to discovery   
>>>>> what's going on. I let both servers turned on all night ( server   
>>>>> A with no service and server B working normally), and when I   
>>>>> arrived at morning today, another surprise: the load average of   
>>>>> server B was on 1200(!) and server A 0 (no service running).
>>>>>
>>>>> When I started services on server A and shutdown server B, the   
>>>>> load on server A became 200 in question of seconds.
>>>>>
>>>>> I again shutdown the server A, and after that, turned on server   
>>>>> B. Now everything is working fine, load average of 3 on server B.
>>>>>
>>>>> I didn't update the kernel, Debian, storage or anything else.   
>>>>> There's no message on syslog, dmesg or screen. There's no process  
>>>>>  with more then 2% of CPU or memory. I really don't know what to   
>>>>> do and I have no clues.
>>>>>
>>>>> Please, could someone help me?
>>>>>
>>>>> Thanks a log
>>>>>
>>>>> Jeronimo
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> Ocfs2-users mailing list
>>>>> Ocfs2-users at oss.oracle.com
>>>>> http://oss.oracle.com/mailman/listinfo/ocfs2-users
>>>>>
>>>>>           
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>>> Ocfs2-users at oss.oracle.com
>>> http://oss.oracle.com/mailman/listinfo/ocfs2-users
>>>
>>>       
>
>
>
> Atenciosamente,
>
> -------------------------
> Jerônimo Aguiar Bezerra
> CCNA, LPICv1, AFCC
> Analista de Suporte
> Divisão de Suporte
> CPD/UFBA-PoP-BA/RNP
>
> ----------------------------------------------------------------
> Universidade Federal da Bahia - http://www.portal.ufba.br
>
>
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