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From: Vladislav Bogdanov <bubble@hoster-ok.com>
To: LVM general discussion and development <linux-lvm@redhat.com>
Subject: Re: [linux-lvm] [PATCH 10/10] man: document --node option to lvchange
Date: Thu, 21 Mar 2013 21:23:02 +0300	[thread overview]
Message-ID: <514B5006.7080306@hoster-ok.com> (raw)
In-Reply-To: <20130319153215.GB986@redhat.com>

19.03.2013 18:32, David Teigland wrote:
> On Tue, Mar 19, 2013 at 01:32:50PM +0000, Vladislav Bogdanov wrote:
>> +.B \-\-node \fINodeID
>> +Perform specified activation command on a remote cluster node (the same to running
>> +corresponding command on that node locally).
>> +Currently tested only for corosync clusters (\fB-I\fP \fIcorosync\fP option to clvmd)
>> +for corosync versions from 2.0.
>> +If corosync configuration has node names in a nodelist (nodelist.node.X.name = name
>> +in CMAP tems) or node names are used for ring0_addr (nodelist.node.X.ring0_addr = name),
>> +then that names may be used as NodeID. Otherwise numeric node IDs should be used.
> 
> lvm tools should move away from doing remote command execution.

This would break current behavior btw (I do not say current is the right
one, but it exists).
lvchange -ay|-an on a clustered LV activates it shared everywhere in
cluster. Internally this is done by sending message to all nodes
(wildcard). Each node obtain shared lock itself then.

I just slightly modified this to be able to send targeted messages.
Everything was already in code, I just made it work for non-wildcard
messages and added possibility to enable this in tools.

> As you mentioned before, this is the equivalent of "ssh node lvchange".
> ssh or some other tool outside lvm is the right way to run the remote
> commands.
> 
> Also, lvm should not assume that it's using dlm/corosync, or that this
> kind of remote option will be possible to support.
> 
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@redhat.com
> https://www.redhat.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
> 

  parent reply	other threads:[~2013-03-21 18:23 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-03-19 13:32 [linux-lvm] [PATCH 00/10] Enhancements to a clustered logical volume activation Vladislav Bogdanov
2013-03-19 13:32 ` [linux-lvm] [PATCH 01/10] lvchange: Allow cluster lock conversion Vladislav Bogdanov
2013-03-19 15:23   ` David Teigland
2013-03-19 15:33     ` Vladislav Bogdanov
2013-03-19 15:44       ` Vladislav Bogdanov
2013-03-19 16:03         ` David Teigland
2013-03-19 16:36           ` Vladislav Bogdanov
2013-03-19 13:32 ` [linux-lvm] [PATCH 02/10] clvmd: Fix buffer size Vladislav Bogdanov
2013-03-19 13:32 ` [linux-lvm] [PATCH 03/10] clvmd: Allow node names to be obtained from corosync's CMAP Vladislav Bogdanov
2013-03-19 13:32 ` [linux-lvm] [PATCH 04/10] clvmd: fix positive return value is not an error in csid->name translation Vladislav Bogdanov
2013-03-19 13:32 ` [linux-lvm] [PATCH 05/10] clvmd: use correct flags for local command execution Vladislav Bogdanov
2013-03-19 13:32 ` [linux-lvm] [PATCH 06/10] clvmd: additional debugging - print message bodies Vladislav Bogdanov
2013-03-19 13:32 ` [linux-lvm] [PATCH 07/10] locking: Allow lock management (activation, deactivation, conversion) on a remote nodes Vladislav Bogdanov
2013-03-19 13:32 ` [linux-lvm] [PATCH 08/10] lvchange: implement remote lock management Vladislav Bogdanov
2013-03-19 13:32 ` [linux-lvm] [PATCH 09/10] man: document --force option to lvchange, provide examples Vladislav Bogdanov
2013-03-19 13:32 ` [linux-lvm] [PATCH 10/10] man: document --node option to lvchange Vladislav Bogdanov
2013-03-19 15:32   ` David Teigland
2013-03-19 15:42     ` Vladislav Bogdanov
2013-03-19 15:54       ` David Teigland
2013-03-19 16:52         ` Vladislav Bogdanov
2013-03-19 17:16           ` David Teigland
2013-03-19 17:36             ` Vladislav Bogdanov
2013-03-20  8:45               ` Zdenek Kabelac
2013-03-20 12:12                 ` Vladislav Bogdanov
2013-03-21 18:31                 ` Vladislav Bogdanov
2013-03-21 19:01                   ` Zdenek Kabelac
2013-03-21 19:16                     ` Vladislav Bogdanov
2013-03-21 18:23     ` Vladislav Bogdanov [this message]
2013-03-19 16:42 ` [linux-lvm] [PATCH 00/10] Enhancements to a clustered logical volume activation Alasdair G Kergon
2013-03-19 17:42   ` Vladislav Bogdanov
2013-06-05 13:23     ` [linux-lvm] clvmd leaving kernel dlm uncontrolled lockspace Andreas Pflug
2013-06-05 15:13       ` David Teigland
2013-06-05 17:29         ` Andreas Pflug
2013-06-06  6:17         ` Andreas Pflug
2013-06-06 11:06           ` matthew patton
2013-06-06 17:54             ` Andreas Pflug

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