Hi Indra,
>I'd probably start by looking at your nodes and check if the SSDs are
> saturated
> >or if they have high write access times.
>
> Any recommended benchmark tool to do this? Especially those specific to
> Ceph OSDs and will not cause any impact on overall performance?
>
A simple way wou
On 03/07/2014 11:43 PM, Indra Pramana wrote:
Hi Mariusz,
Good day to you, and thank you for your email.
>You should probably start by hooking up all servers into some kind of
statistics
>gathering software (we use collectd + graphite ) and monitor at least
disk stats
>(latency + iops + oct
Hello,
i've lost a complete server and an additional disk on another server
over the night. I was able to fix everything except one PG that stays
incomplete.
i wasn't able to rescue the failed single disk. i already tried to get
the cluster back running marking the failes osd as lost.
some quest
I was planning to setup a small Ceph cluster with 5 nodes. Each node will
have 12 disks and run 12 osds.
I want to run 3 mons on 3 of the nodes. The servers have an internal SD
card that I'll use for the OS and an internal 16GB USB port that I want to
mount the mon files to.
>From what I understa
> Is there an issue with IO performance?
Ceph monitors store cluster maps and various other things in leveldb,
which persists to disk. I wouldn't recommend using a sd/usb cards for
the monitor store because they tend to be slow and have poor
durability.
--
Kyle
_
