Long Lived imapd processes

Earl R Shannon Earl_Shannon at ncsu.edu
Tue Apr 15 10:47:14 EDT 2003


Hello,

The processes are using resources on a resource limited machine. We are 
looking at all the ways we can reduce the load on the machine. Having a 
client connected for a month and not reading mail is not productive for 
anybody.

Regards,
Earl Shannon


Ken Murchison wrote:
> 
> Earl R Shannon wrote:
> 
>>Hello,
>>
>>Running Cryus IMAP V 2.1.11 on Solaris 7
>>
>>We have been finding long lived imapd processes on our imap server. Some
>>approaching thirty days. A truss of these processes show that they are
>>not doing anything except receiving a noop from the client every ten
>>minutes or so. This resets the timer which allows the process to remain.
> 
> 
> Right.  Somebody has a client just sitting there polling the server. 
> Why is this a problem?  As long as the server responds, its doing its
> job.
> 
> 
> 
>>My question is: what if anything do others on this list do about these
>>situations? I am concerned about killing imapd processes and what it may
>>eventually do to the master process.
> 
> 
> 
> As it currently stands, if you kill an imapd process otu from under
> master, master will think it is still active and will assume that it can
> service requests.  If you do this enough, master won't spawn any more
> imapd and no clients will be serviced.
> 






More information about the Info-cyrus mailing list