From: Mike Ryan <mike.ryan@inktank.com>
To: Sage Weil <sage@inktank.com>
Cc: ceph-devel@vger.kernel.org
Subject: Re: PG recovery reservation state chart
Date: Tue, 2 Oct 2012 14:43:06 -0700 [thread overview]
Message-ID: <20121002214306.GG8206@splice> (raw)
In-Reply-To: <alpine.DEB.2.00.1210021434450.27524@cobra.newdream.net>
> This all looks right to me. I only have one concern: if, at some future
> point, we decide it's necessary or worthwhile to avoid non-backfill
> recovery due to targets begin full, does this approach preclude an elegant
> solution?
I believe this encourages an elegant solution:
We add a new state if a remote reservation is rejected:
WaitRemoteRecoveryReserved -> SleepALittle -> LocalReserving
In the new state we drop the remote reservations we acquired and wait
until a timer goes off before transitioning back into LocalReserving.
prev parent reply other threads:[~2012-10-02 21:43 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-02 19:48 PG recovery reservation state chart Mike Ryan
2012-10-02 20:02 ` Gregory Farnum
2012-10-02 20:21 ` Mike Ryan
2012-10-02 20:31 ` Josh Durgin
2012-10-02 20:40 ` Mike Ryan
2012-10-02 20:35 ` Tommi Virtanen
2012-10-02 20:42 ` Mike Ryan
2012-10-02 22:00 ` Josh Durgin
2012-10-02 22:39 ` Mike Ryan
2012-10-02 21:36 ` Sage Weil
2012-10-02 21:43 ` Mike Ryan [this message]
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