From: Sage Weil <sage@newdream.net>
To: "Deneau, Tom" <tom.deneau@amd.com>
Cc: "ceph-devel@vger.kernel.org" <ceph-devel@vger.kernel.org>
Subject: Re: pg rebalancing after taking osds out
Date: Tue, 26 Jan 2016 17:44:10 -0500 (EST) [thread overview]
Message-ID: <alpine.DEB.2.11.1601261743440.6524@cpach.fuggernut.com> (raw)
In-Reply-To: <DM2PR12MB0556E3531B9E94EAF8131BCB9BD80@DM2PR12MB0556.namprd12.prod.outlook.com>
On Tue, 26 Jan 2016, Deneau, Tom wrote:
> I have a replicated x2 pool with the crush step of host.
> When the pool was created there were 3 hosts with 7 osds each,
> and looking at the pg-by-pool for that pool I can see that
> every pg has copies on two different hosts.
>
> Now I want to take 2 osds out of each node, which I did using
> the osd out command. (So there are then 5 osds per host node).
>
> Now I rerun ceph pg ls-by-pool for that pool and it shows that
> some pgs have both their copies on the same node.
>
> Is this normal? My expectation was that each pg still
> had its two copies on two different hosts.
There those PGs in the 'remapped' state? What does the tree look like
('ceph osd tree')?
sage
next prev parent reply other threads:[~2016-01-26 22:43 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-26 22:26 pg rebalancing after taking osds out Deneau, Tom
2016-01-26 22:44 ` Sage Weil [this message]
2016-01-26 23:37 ` Deneau, Tom
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