Quarantine problem: Ext3 directory limit to 32000 files

Julian Field MailScanner at ecs.soton.ac.uk
Fri Aug 13 12:18:56 IST 2010


But before you upgrade your filesystem to EXT4, make sure your distro 
actually has EXT4 filesystem support in it :-)

On 10/08/2010 12:25, Paulo Roncon wrote:
> On 09/08/2010 13:04, Paulo Roncon wrote:
>    
>> Hello,
>>
>> Yesterday I got a problem with my mailscanner server. The messages stopped being processed and the mailscanner would crash attempting to process the messages.
>> Some troubleshooting later and: The problem was with the file per directory limit = 32000 of the ext3.
>> I'm going to upgrade to ext4.
>>
>> Any ideias? Change the quarantine function to create directories per hour also?
>>
>> 	  	  	
>>   Paulo
>>
>>      
> I think I need to clarify things:
> -The 32000 messages ARE PER DAY
> -I DO have a very, very, very busy server
> -I DO have Bayes, AV, etc, etc, etc in place
> -I have to obey to client rules as to what to do with spam - the delete a message the threshold must be very high
> -End users DO NOT have access to the quarantine
>
> My post was more a warning to all of you who might have a server as busy as mine.
>
> -A watchdog for this problem could be:
> cron.d:
> ls /var/spool/MailScanner/quarantine/[TODAY] | wc -l
> if>  25000 then move all subdirs between 0h00AM - 4h00AM to other DIR and send notification
>
> -Other solutions, as I already proposed would be to extend the structure to /var/spool/MailScanner/quarantine/[TODAY]/[HOUR]
> But this would have impact in MailWatch (I think... not sure) and every other script buildt around quarantine management
> -The best, I think would be to upgrade to EXT4.
>
> Thanks,
> Paulo
>
>
>    

Jules

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