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From Darek Czarkowski <dczarkow...@infinitesource.ca>
Subject Re: SESSIONS.ser (Too many open files)
Date Wed, 26 Sep 2007 18:13:48 GMT
Ranjan Kumar Baisak wrote:
>> I would think this would be the root issue: "Too many open files"
>>
> We dont have much file handling operations in our web applications, 
> but again I am going to look minutely all IO operations in my 
> application.
>> What OS are you running.  Some limit the number of open file 
>> handles.  Also might want to check to be sure you are closing files 
>> when finished with them in your webapp.
>>
> its running on  *Red Hat *Enterprise Linux AS 4. I am at all not good 
> at system programming, but I would love to know any such 
> commands/utilities exist that can tell me detail about what are the 
> files getting opened in my web application which results such exception.
>
> regards,
>>
>>
>> Ranjan Kumar Baisak wrote:
>>
>>> Hi Experts,
>>>                I am facing a strange problem in my tomcat 
>>> application. Suddenly it generates following Exceptions
>>>
>>> java.io.FileNotFoundException: 
>>> /server/http/site/music.yamaha.com/site/work/SESSIONS.ser (Too many 
>>> open files)
>>>   at java.io.FileOutputStream.open(Native Method)
>>>   ..
>>> ....
>>>
>>> And some other application FNF
>>>
>>> java.io.FileNotFoundException: 
>>> /server/http/site/ssd.com/site/dist/tilesCopy/en_US/siteTree.xml 
>>> (Too many open files)
>>>   at java.io.FileInputStream.open(Native Method)
>>> ...
>>> ...
>>>
>>> What might be the possible causes that generates such exception?
>>> Some people suggested me to check whether application is running on 
>>> development mode, and if yes then change it to deployment mode i.e.
>>> <context-param>
>>>        <param-name>configuration</param-name>
>>>       <param-value>deployment</param-value>
>>>   </context-param>
>>>
>>>
>>> I am not using any <context-param> in my web.xml.
>>> I would appreciate your thoughtful suggestion.
>>>
>>> regards,
>>> Ranjan
>>>
>>>
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>>
>>
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>>
>
>
> ---------------------------------------------------------------------
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>
>
To see your current settings use 'ulimit -a'. If you want to make 
permanent changes edit /etc/security/limits.conf
Everything in a system is a file, not just a single webpage, the default 
are not enough for your requirements.

-- 
Darek Czarkowski
Ph: 604 294 6557 (Ext. 113)
Fx: 604 294 6507
www.infinitesource.ca
darekc at infinitesource dot ca 


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