Dovecot LMTP high CPU

csr_arg

Verified User
Joined
Mar 2, 2017
Messages
26
Hi!
It had a problem with Dovecot, where it consumed 100% of the CPU, in the log it showed the error "(Out of memory (service lmtp {vsz_limit = 512 MB}, you may need to increase it)"
So we increased the memory, after that the error did not show up again but Dovecot still produces high CPU consumption, and when I check the log there are the following errors

"master: Error: service (pop3-login): Initial status notification not received in 30 seconds, killing the process"
"lmtp: Fatal: master: service (lmtp): child 7391 killed with signal 9"

What can be? A brute force attack?

Thanks!
 
Last edited:
Thanks for answering. The default vsz_limit is 2048MB, initially it was 512MB and gave an error.
"master: Error: service (pop3-login): Initial status notification not received in 30 seconds, killing the process"
"lmtp: Fatal: master: service (lmtp): child 7391 killed with signal 9"

Now what I did was update the Dovecot, for now it's working fine

 
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