From: Nathaniel Rutman <Nathan.Rutman@Sun.COM>
To: lustre-devel@lists.lustre.org
Subject: [Lustre-devel] imperative recovery
Date: Thu, 18 Dec 2008 12:15:06 -0800 [thread overview]
Message-ID: <494AAF4A.4030304@sun.com> (raw)
In-Reply-To: <046101c95ef4$2fe3a8d0$8faafa70$@com>
Eric Barton wrote:
>
>> Other options I've thought of to explore this idea:
>>
>> - MGS notifies clients (somehow) after a server has restarted.
>>
This seems like a no-brainer easy win today, and doesn't depend on any
advanced features like message priority. The only scalability issue
would seem to be the broadcast of the message to all clients, but this
is no different than the current broadcast mechanism the MGS employs to
update client configs. The message from the MGS would be taken as a
suggestion, "Why don't y'all time out all your current RPCs since I
noticed OST0004 restarted. Oh, and use failover nid #2." Current
replay/recovery need not be touched.
next prev parent reply other threads:[~2008-12-18 20:15 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1906DB02-F9DF-4F49-9A9A-23FE7E799EA8@sun.com>
2008-12-15 20:32 ` [Lustre-devel] imperative recovery Eric Barton
2008-12-18 20:15 ` Nathaniel Rutman [this message]
2009-01-09 15:27 ` Nicholas Henke
2009-01-09 17:04 ` Robert Read
2009-01-09 19:43 ` Nicholas Henke
2009-01-10 0:50 ` Andreas Dilger
2009-01-10 4:44 ` Robert Read
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