lmtp timeout, locks and crashes

[Tom Sommer]

On 2016-03-17 13:41, Tom Sommer wrote:
> On 2016-03-15 10:53, Tom Sommer wrote:
>> I'm seeing some problems on accounts which get a lot of spam (like, a 
>> lot).
> 
> I did an "strace" on one of the hundreds of lmtp processes.
> 
> It's doing stat() on all files in the new folder for the receiver:
> 
> stat("/var/mail/dovecot/xxxx/xxxx/new/xx.xxx.xxxx.xxxx.com",
> {st_mode=S_IFREG|0600, st_size=15505, ...}) = 0
> 
> etc.
> 
> The "new" folder contains hundreds of thousands of files.
> 
> Is there any way to prevent all these stat() calls? It seems like
> something there would be an index or cache for?

Seems like it might be due to maildir quota-recalculation?