ceph osd reweight-by-utilization is ok to use, as long as it's tempory.
I've used it while waiting for new hardware to arrive. It adjusts the
weight displayed in ceph osd tree, but not the weight used in the crushmap.
Yeah, there are two different weights for an OSD. Leave the crushmap
weight a
Hello,
On Sat, 30 Aug 2014 18:27:22 -0400 J David wrote:
> On Fri, Aug 29, 2014 at 2:53 AM, Christian Balzer wrote:
> >> Now, 1200 is not a power of two, but it makes sense. (12 x 100).
> > Should have been 600 and then upped to 1024.
>
> At the time, there was a reason why doing that did not
On Fri, Aug 29, 2014 at 2:53 AM, Christian Balzer wrote:
>> Now, 1200 is not a power of two, but it makes sense. (12 x 100).
> Should have been 600 and then upped to 1024.
At the time, there was a reason why doing that did not work, but I
don't remember the specifics. All messages sent back in
Hello,
On Fri, 29 Aug 2014 02:32:39 -0400 J David wrote:
> On Thu, Aug 28, 2014 at 10:47 PM, Christian Balzer wrote:
> >> There are 1328 PG's in the pool, so about 110 per OSD.
> >>
> > And just to be pedantic, the PGP_NUM is the same?
>
> Ah, "ceph status" reports 1328 pgs. But:
>
> $ sudo
On Thu, Aug 28, 2014 at 10:47 PM, Christian Balzer wrote:
>> There are 1328 PG's in the pool, so about 110 per OSD.
>>
> And just to be pedantic, the PGP_NUM is the same?
Ah, "ceph status" reports 1328 pgs. But:
$ sudo ceph osd pool get rbd pg_num
pg_num: 1200
$ sudo ceph osd pool get rbd pgp_n
Hello,
On Thu, 28 Aug 2014 19:49:59 -0400 J David wrote:
> On Thu, Aug 28, 2014 at 7:00 PM, Robert LeBlanc
> wrote:
> > How many PGs do you have in your pool? This should be about 100/OSD.
>
> There are 1328 PG's in the pool, so about 110 per OSD.
>
And just to be pedantic, the PGP_NUM is the
On Thu, Aug 28, 2014 at 7:00 PM, Robert LeBlanc wrote:
> How many PGs do you have in your pool? This should be about 100/OSD.
There are 1328 PG's in the pool, so about 110 per OSD.
Thanks!
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How many PGs do you have in your pool? This should be about 100/OSD. If it
is too low, you could get an imbalance. I don't know the consequence of
changing it on such a full cluster. The default values are only good for
small test environments.
Robert LeBlanc
Sent from a mobile device please excu
Hello,
Is there any way to provoke a ceph cluster to level out its OSD usage?
Currently, a cluster of 3 servers with 4 identical OSDs each is
showing disparity of about 20% between the most-used OSD and the
least-used OSD. This wouldn't be too big of a problem, but the
most-used OSD is now at 86
