From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Teigland <teigland@redhat.com>
Date: Wed, 27 Jun 2018 08:49:39 -0500
Subject: [Cluster-devel] How to enable daemon_debug for dlm_controld
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On Wed, Jun 27, 2018 at 04:07:18PM +0800, Guoqing Jiang wrote:
> But by default, seems dlm_controld just run with "-s 0". And I tried to add
> "daemon_debug=1" to /etc/dlm/dlm.conf,
> then dlm resource can't start at all. Could you tell me how to enable this
> option? Thanks in advance!

That option doesn't work in dlm.conf, see
https://pagure.io/dlm/c/9fe973004d8dbffc07bbecbdbb6c828bfb832137?branch=master

What you want instead is:
log_debug=1
debug_logfile=1

Then look in /var/log/dlm_controld/dlm_controld.log

Dave