From: Cedric Le Goater <legoater@free.fr>
To: Nathan Lynch <ntl@pobox.com>
Cc: containers@lists.osdl.org, Oren Laadan <orenl@cs.columbia.edu>,
linuxppc-dev@ozlabs.org
Subject: Re: [PATCH 1/3] powerpc: bare minimum checkpoint/restart implementation
Date: Tue, 17 Mar 2009 07:55:37 +0100 [thread overview]
Message-ID: <49BF4969.3080308@free.fr> (raw)
In-Reply-To: <20090316133745.4f636979@thinkcentre.lan>
> Again, how would 'cr' obtain exit status for these tasks, and how would
> it distinguish failure from normal operation?
Here's our solution to this issue.
mcr maintains in its kernel container object an exitcode attribute for
the mcr-restart process. This process is detached from the fork tree of
the restarted application.
when the restart is finished, an mcr-wait command can be called to reap
this exitcode. This make it possible to distinguish an exit of the
application process from an exit of the mcr-restart process.
This is a must-have for batch managers in an HPC environment.
Cheers,
C.
next prev parent reply other threads:[~2009-03-17 6:55 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-28 22:41 [RFC/PATCH 0/3] checkpoint/restart for powerpc Nathan Lynch
2009-01-28 22:41 ` [PATCH 1/3] powerpc: bare minimum checkpoint/restart implementation Nathan Lynch
2009-01-29 6:41 ` Oren Laadan
2009-01-29 21:40 ` Nathan Lynch
2009-01-30 0:11 ` Oren Laadan
2009-01-30 20:25 ` Nathan Lynch
2009-02-17 7:03 ` Nathan Lynch
2009-02-17 20:02 ` [PATCH 1/3 v2] powerpc: heckpoint/restart implementation Nathan Lynch
2009-02-24 19:58 ` [PATCH 1/3] powerpc: bare minimum checkpoint/restart implementation Serge E. Hallyn
2009-02-24 21:11 ` Nathan Lynch
2009-03-13 3:36 ` Oren Laadan
2009-03-13 3:31 ` Oren Laadan
2009-03-13 15:42 ` Cedric Le Goater
2009-03-16 18:37 ` Nathan Lynch
2009-03-17 6:55 ` Cedric Le Goater [this message]
2009-03-18 9:15 ` Oren Laadan
2009-01-30 4:01 ` Serge E. Hallyn
2009-01-30 3:55 ` Serge E. Hallyn
2009-02-04 3:39 ` Benjamin Herrenschmidt
2009-02-04 15:54 ` Serge E. Hallyn
2009-02-04 20:58 ` Benjamin Herrenschmidt
2009-02-04 23:44 ` Oren Laadan
2009-02-05 0:16 ` Benjamin Herrenschmidt
2009-02-05 3:30 ` Oren Laadan
2009-02-05 16:09 ` Serge E. Hallyn
2009-02-05 21:01 ` Benjamin Herrenschmidt
2009-01-28 22:41 ` [PATCH 2/3] powerpc: wire up checkpoint and restart syscalls Nathan Lynch
2009-01-28 22:41 ` [PATCH 3/3] allow checkpoint/restart on powerpc Nathan Lynch
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