Re: [libvirt] virtlockd max_clients limitation

Hi, we recently ran into a problem when trying to start more than 20 guests if direct locking with virtlockd was enabled. The error message locked like this: # start test7 error: Failed to start domain test7 error: Cannot recv data: Connection reset by peer Our research indicated there is a max_clients parameter set in src/locking/lock_daemon.c which causes the limitation. Simply increasing this number works as a workaround. I don't have a deep understanding of the code, so I don't know if there is a bug and the connection should be dropped after the lock is set or if max_clients really is the way to go. If the latter I guess max_clients should be configurable like in virtlockd or at least be higher than 20 :) Libvirt version 1.1.1 Cheers, David >From 5187231a973a9956723683c7fad14c8bb3dfcac2 Mon Sep 17 00:00:00 2001 From: David Weber <wb(a)munzinger.de&gt; Date: Sun, 18 Aug 2013 16:16:36 +0200 Subject: [PATCH] Increase virtlockd max clients --- src/locking/lock_daemon.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/locking/lock_daemon.c b/src/locking/lock_daemon.c index c4c1727..d96d0fc 100644 --- a/src/locking/lock_daemon.c +++ b/src/locking/lock_daemon.c virLockDaemonNew(bool privileged) return NULL; } - if (!(lockd->srv = virNetServerNew(1, 1, 0, 20, + if (!(lockd->srv = virNetServerNew(1, 1, 0, 100, -1, 0, false, NULL, virLockDaemonClientNew,