After logrotation Dovecot still writes to old log file

[Michael Heuberger]

Thanks man

You suggesting the same as https://wiki2.dovecot.org/Logging says?

postrotate
  kill -s 0 `cat /var/run/dovecot/master.pid` || kill -s USR1 `cat /var/run/dovecot/master.pid`
endscript

Well, I already tried that and didn't work. Hence my guess that it's 
something else.

On 15/06/18 13:19, Stephen Satchell wrote:
>  From the manpage:
> SIGNALS
>         Dovecot handles the following signals as described:
>
>         USR1   Force dovecot to reopen  all  configured  log  files
>         (log_path, info_log_path and debug_log_path).
>
> So, you need to add
>
>    kill -s USR1 `cat /var/run/dovecot/master.pod`
>
> (or wherever your distribution puts the PID for dovecot) in your
> log-rotate file, to tell Dovecot to use the new log file.
> Alternatively, check to see if "doveadm" is installed in your system; if
> not, that would cause exactly the symptoms you are seeing.
>
> On 06/14/2018 03:30 PM, Michael Heuberger wrote:
>> Hi there
>>
>> This is weird. On my latest Ubuntu server Dovecot seems to write to
>> /var/log/dovecot.log.1 instead of a recently created /var/log/dovecot.log
>>
>> Here my logrotate config for Dovecot:
>>
>> /var/log/dovecot.log {
>>          su root syslog
>>          rotate 7
>>          missingok
>>          copytruncate
>>          create 666 root syslog
>>          sharedscripts
>>          postrotate
>>              doveadm log reopen
>>          endscript
>> }
>>
>> Doveadm should reopen it but no, still writes to old log file.
>>
>> Not sure, maybe it's someone else, not dovecot, writing to the log file?
>>
>> And here the versions:
>>
>> # 2.2.33.2 (d6601f4ec): /etc/dovecot/dovecot.conf
>> # Pigeonhole version 0.4.21 (92477967)
>> # OS: Linux 4.14.49-rh65-20180612025235.xenU.x86_64 x86_64 Ubuntu 18.04 LTS
>>
>> How can we investigate best? Or is there a mistake in the above
>> logrotate config?
>>
>> - Michael
>>

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