gfs2_lockcapture - capture locking information from GFS2 file systems and DLM.

       Shane Bradley <sbradley@fedoraproject.org>

gfs2_lockcapture  is  used  to  capture  the  GFS2 lockdump data and corresponding DLM data for GFS2 file
       systems. The number of captures and their frequency can be configured. By default all of the mounted GFS2
       file systems will have their data collected unless GFS2 file systems are specified.

       Please note that sysrq -t (thread) and -m (memory) dumps and the pid directories in /proc  are  collected
       unless they are disabled with the -P option.

/proc/mounts/proc/slabinfo/sys/kernel/config/dlm/cluster/lkbtbl_size/sys/kernel/config/dlm/cluster/dirtbl_size/sys/kernel/config/dlm/cluster/rsbtbl_size/sys/kernel/debug/gfs2//sys/kernel/debug/dlm//proc/<int>/ (If /proc/1/stack does exists)
       /var/log/messages/var/log/cluster/

       gfs2_lockcapture - capture locking information from GFS2 file systems and DLM.

       The output of the following commands will be captured:

       • uname -a

       • uptime

       • ps h -AL -o "tid,s,cmd"

       • df -h

       • lsof

       • mount -l

       • dlm_tool ls

       • dlm_tool lockdebug -v -s -w <lockspace name>

       • echo "t" > /proc/sysrq-trigger (If /proc/1/stack does not exist)

       • echo "m" > /proc/sysrq-trigger (If /proc/1/stack does not exist)

-h,--help
              Prints out a short usage message and exits.

       -d,--debug
              Enables debug logging.

       -q,--quiet
              Disables logging to console.

       -y,--no_ask
              Disables all questions and assumes yes.

       -i,--info
              Prints information about the mounted GFS2 file systems.

       -P,--disable_process_gather
              The gathering of process information will be disabled.

       -o<outputdirectory>,--path_to_output_dir=<outputdirectory>
              The directory where all the collect data will be stored.

       -r<numberofruns>,--num_of_runs=<numberofruns>
              The number of runs capturing the lockdump data. The default is 3 runs.

       -s<secondstosleep>,--seconds_sleep=<secondstosleep>
              The  number  of  seconds  to sleep between runs of capturing the lockdump data. The default is 120
              seconds.

       -n<nameofGFS2filesystem>,--fs_name=<nameofGFS2filesystem>
              The name of the GFS2 filesystem(s) that will have their lockdump data captured.  By  default,  all
              mounted GFS2 file systems will have their data captured.

gfs2_lockcapture(8)

gfs2_lockcapture [-dqyP] [-o outputdirectory] [-r numberofruns] [-s secondstosleep] [-n nameofGFS2filesystem]gfs2_lockcapture [-dqyi]