How to set MDS log size

How to set MDS log size

[Madhusudhana U]

Hi all,
In my MDS system of ceph cluster, my entire root partition is full bcz of 
one big mds log file


[root@ceph-node-7 ceph]# du -sh *
0       mds.admin.log
27G     mds.ceph-node-7.log

[root@ceph-node-7 ceph]# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda2              39G   39G     0 100% /
tmpfs                  24G     0   24G   0% /dev/shm
/dev/sda1             2.0G   76M  1.8G   5% /boot
/dev/sda5              19G  409M   18G   3% /ceph

How to set a max size for mds log ? does it auto rotate ? Bcz my root 
partition is full, will this affect read/write performance in
my ceph cluster?

Thanks
Madhusudhana

Re: How to set MDS log size

[Josh Durgin]

On 04/11/2012 12:33 AM, Madhusudhana U wrote:
> Hi all,
> In my MDS system of ceph cluster, my entire root partition is full bcz of
> one big mds log file
>
>
> [root@ceph-node-7 ceph]# du -sh *
> 0       mds.admin.log
> 27G     mds.ceph-node-7.log
>
> [root@ceph-node-7 ceph]# df -h
> Filesystem            Size  Used Avail Use% Mounted on
> /dev/sda2              39G   39G     0 100% /
> tmpfs                  24G     0   24G   0% /dev/shm
> /dev/sda1             2.0G   76M  1.8G   5% /boot
> /dev/sda5              19G  409M   18G   3% /ceph
>
> How to set a max size for mds log ? does it auto rotate ? Bcz my root
> partition is full, will this affect read/write performance in
> my ceph cluster?

Ceph comes with a logrotate config, which should be in
/etc/logrotate.d/ceph on debian-based distros. If you changed the
location of the logs, you'll need to update the logrotate configuration
to match.

Josh