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Re: [libvirt] [PATCH] rpc: wait longer for session daemon to start up

On Wed, Mar 16, 2016 at 09:52:31AM +0000, Richard W.M. Jones wrote:
On Tue, Mar 15, 2016 at 05:10:48PM -0400, Cole Robinson wrote:

We only wait .5 seconds for the session daemon to start up and present
its socket, which isn't sufficient for many users. Bump up the sleep
interval and retry amount so we wait for a total of 5 seconds.

A longer delay is surely better, so ACK from me.

Unless it's half a minute or 20 seconds or whatever it was before as we
were getting complaints for that.  ACK from me too.

danpb suggests dropping the reverting this:

commit be78814ae07f092d9c4e71fd82dd1947aba2f029
Author: Michal Privoznik <mprivozn redhat com>
Date:   Thu Apr 2 14:41:17 2015 +0200

    virNetSocketNewConnectUNIX: Use flocks when spawning a daemon

This commit references:


The test for that bug is very simple, just run the following command
as *NON* root:

 killall libvirtd ; for i in `seq 1 5`; do virsh list >/tmp/log$i 2>&1 & done

If some of the virsh instances fail, then you've hit the bug.

Commit be78814a did appear to fix that.  Whether that was coincidental
or not, I don't know, but please don't reintroduce that bug,
particularly as it is so simple to test for.


Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
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