Show Table of Contents
10.13. Debug Logging for Distributed Lock Manager (DLM) Needs to be Enabled
There are two debug options for the Distributed Lock Manager (DLM) that you can enable, if necessary: DLM kernel debugging, and POSIX lock debugging.
To enable DLM debugging, edit the
/etc/cluster/cluster.conf file to add configuration options to the dlm tag. The log_debug option enables DLM kernel debugging messages, and the plock_debug option enables POSIX lock debugging messages.
The following example section of a
/etc/cluster/cluster.conf file shows the dlm tag that enables both DLM debug options:
<cluster config_version="42" name="cluster1"> ... <dlm log_debug="1" plock_debug="1"/> ... </cluster>
After editing the
/etc/cluster/cluster.conf file, run the cman_tool version -r command to propagate the configuration to the rest of the cluster nodes.
Where did the comment section go?
Red Hat's documentation publication system recently went through an upgrade to enable speedier, more mobile-friendly content. We decided to re-evaluate our commenting platform to ensure that it meets your expectations and serves as an optimal feedback mechanism. During this redesign, we invite your input on providing feedback on Red Hat documentation via the discussion platform.