Date: Fri, 23 Nov 2007 13:38:35 +0100
From: Dejan Muhamedagic <[EMAIL PROTECTED]>
Subject: Re: [Linux-HA] hertbeat processes owners
To: General Linux-HA mailing list <[email protected]>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=us-ascii
Hi,
On Fri, Nov 23, 2007 at 11:50:55AM +0100, Frank wrote:
> Hi,
> we are working with heartbeat 2.1.2 with the centOS rpms (on a Red Hat
> Linux) with 2 nodes
>
> we tried to use a custom OCF resoure from gui without success, and after
> consulting maillists we were informed that it was due to a bug, so we
> remove it from our files. Any way we are getting the same Error messages in
> the log files when we try to add a resource from the gui on this node :
>
> mgmtd[21121]: 2007/11/23_09:49:39 ERROR: lrm_get_rsc_class_supported(347):
> failed to send a rclasses message to lrmd via ch_cmd channel.
>
> we have restarted heartbeat in both nodes, reinstall it, but it's the same.
> May be we forgot to clean something?
That message is really strange, because it basically says that
the connection to the lrmd doesn't work. I'll have to investigate
this further. Is that happening only with the resources from
providers other than heartbeat?
After some more testing I think the problem was caused to existing files
from an old heartbeat installation (2.0.8) in
/usr/local/lib, /usr/local/bin,etc. After removing them, such message
log doesn't appear anymore. I keep on testing but
I think it is solved.
> One thing we are not sure that is working fine is uids on heartbeat
> processes:
>
> # ps -fe | grep heart
> root 18894 26668 0 11:26 pts/4 00:00:00 grep heart
> nobody 21004 21043 0 09:27 ? 00:00:35 /usr/lib/heartbeat/lrmd -r
> 90 21006 21043 0 09:27 ? 00:00:00 /usr/lib/heartbeat/crmd
> root 21043 1 0 Nov15 ? 00:00:01 heartbeat: master control
> process
> nobody 21046 21043 0 Nov15 ? 00:00:00 heartbeat: FIFO reader
> nobody 21047 21043 0 Nov15 ? 00:00:00 heartbeat: write: bcast eth1
> nobody 21048 21043 0 Nov15 ? 00:00:00 heartbeat: read: bcast eth1
> 90 21077 21006 0 09:28 ? 00:00:00 /usr/lib/heartbeat/tengine
> 90 21078 21006 0 09:28 ? 00:00:00 /usr/lib/heartbeat/pengine
> 90 21115 21043 0 Nov15 ? 00:00:00 /usr/lib/heartbeat/ccm
> 90 21116 21043 0 Nov15 ? 00:00:06 /usr/lib/heartbeat/cib
> nobody 21118 21043 0 Nov15 ? 00:00:00 /usr/lib/heartbeat/stonithd
> 90 21119 21043 0 Nov15 ? 00:00:00 /usr/lib/heartbeat/attrd
> root 21121 21043 0 Nov15 ? 00:00:01 /usr/lib/heartbeat/mgmtd -v
>
> process "lrmd" is owned by "nodody", but it changes to "root" sometime (???)
> in other node is owned by root almost all the time (90 is hacluster). Can
> that
> be causing problems?
No. That's fine. Some processes are dropping/gaining privileges
depending on what they are to do. In particular, lrmd and
stonithd always run external scripts (resource/stonith agents)
with root privileges.
Thanks,
Deja
Ok, excellent support. Thanks a lot Deja
Frank
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