Re: current log file removal

I set these values in postgresql.conf, then have a cron job which runs just
after midnight that compresses yesterday's log files. That same cron job
deletes compressed files older than X days.

log_destination = 'stderr'
logging_collector = on
log_directory = '/your/data/location/12/pg_log' # assuming v12, of course
log_filename = 'postgresql-%F.log'
log_rotation_age = 1d

On 11/26/20 8:03 AM, Holger Jakobs wrote:
> The ordinary log rotation should do.
>
> These are the default settings (therefore commented with a # in
> postgresql.conf):
>
> #log_rotation_age = 1d                  # Automatic rotation of logfiles will
>                                         # happen after that time. 0 disables.
> #log_rotation_size = 10MB               # Automatic rotation of logfiles will
>                                         # happen after that much log output.
>                                         # 0 disables.
>
> So your log files will not exceed 10 MB.
>
> Of course, you can to this manually as well. Just rename the current
> logfile,  a new one will be created.
>
> Then gzip or bzip2 or xz the old one.
>
> Am 26.11.20 um 14:40 schrieb Yambu:
>> Hi
>>
>> How can I safely remove the log file that is being used currently and zip
>> it without interfering with the postgres server?
>>
>> We are running out of space on the server and the logs are eating a lot
>> of space, we need to zip them without first stopping the server.
>>
>> regards
>

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