You can setup logrotate however you want - not sure what the default is for
your distro.
Usually logrotate doesn't touch files that are smaller than some size even if
they are old. It will also not delete logs for OSDs that no longer exist.
Ceph itself has nothing to do with log rotation, logrotate does the work. Ceph
packages likely contain default logrotate rules for the logs but you can edit
them to your liking.
Jan
> On 03 Dec 2015, at 09:38, Wukongming wrote:
>
> Yes, I can find ceph of rotate configure file in the directory of
> /etc/logrotate.d.
> Also, I find sth. Weird.
>
> drwxr-xr-x 2 root root 4.0K Dec 3 14:54 ./
> drwxrwxr-x 19 root syslog 4.0K Dec 3 13:33 ../
> -rw--- 1 root root 0 Dec 2 06:25 ceph.audit.log
> -rw--- 1 root root85K Nov 25 09:17 ceph.audit.log.1.gz
> -rw--- 1 root root 228K Dec 3 16:00 ceph.log
> -rw--- 1 root root28K Dec 3 06:23 ceph.log.1.gz
> -rw--- 1 root root 374K Dec 2 06:22 ceph.log.2.gz
> -rw-r--r-- 1 root root 4.3M Dec 3 16:01 ceph-mon.wkm01.log
> -rw-r--r-- 1 root root 561K Dec 3 06:25 ceph-mon.wkm01.log.1.gz
> -rw-r--r-- 1 root root 2.2M Dec 2 06:25 ceph-mon.wkm01.log.2.gz
> -rw-r--r-- 1 root root 0 Dec 2 06:25 ceph-osd.0.log
> -rw-r--r-- 1 root root992 Dec 1 09:09 ceph-osd.0.log.1.gz
> -rw-r--r-- 1 root root19K Dec 3 10:51 ceph-osd.2.log
> -rw-r--r-- 1 root root 2.3K Dec 2 10:50 ceph-osd.2.log.1.gz
> -rw-r--r-- 1 root root27K Dec 1 10:31 ceph-osd.2.log.2.gz
> -rw-r--r-- 1 root root13K Dec 3 10:23 ceph-osd.5.log
> -rw-r--r-- 1 root root 1.6K Dec 2 09:57 ceph-osd.5.log.1.gz
> -rw-r--r-- 1 root root22K Dec 1 09:51 ceph-osd.5.log.2.gz
> -rw-r--r-- 1 root root19K Dec 3 10:51 ceph-osd.8.log
> -rw-r--r-- 1 root root18K Dec 2 10:50 ceph-osd.8.log.1
> -rw-r--r-- 1 root root 261K Dec 1 13:54 ceph-osd.8.log.2
>
> I deployed ceph cluster on Nov 21, from that day to Dec.1, I mean the
> continue 10 days' logs were compressed into one file, it is not what I want.
> Does any OP affect log compressing?
>
> Thanks!
>Kongming Wu
> -
> wukongming ID: 12019
> Tel：0571-86760239
> Dept：2014 UIS2 ONEStor
>
> -邮件原件-
> 发件人: huang jun [mailto:hjwsm1...@gmail.com]
> 发送时间: 2015年12月3日 13:19
> 收件人: wukongming 12019 (RD)
> 抄送: ceph-de...@vger.kernel.org; ceph-users@lists.ceph.com
> 主题: Re: How long will the logs be kept?
>
> it will rotate every week by default, you can see the logrotate file
> /etc/ceph/logrotate.d/ceph
>
> 2015-12-03 12:37 GMT+08:00 Wukongming :
>> Hi ,All
>>Is there anyone who knows How long or how many days will the logs.gz
>> (mon/osd/mds)be kept, maybe before flushed?
>>
>> -
>> wukongming ID: 12019
>> Tel：0571-86760239
>> Dept：2014 UIS2 OneStor
>>
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>
>
> --
> thanks
> huangjun
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