Provided by: gfs2-utils_3.1.6-0ubuntu3_i386 bug

NAME

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

SYNOPSIS

       gfs2_lockcapture [-dqyP] [-o output directory] [-r number of runs]  [-s
       seconds to sleep] [-n name of GFS2 file system]

       gfs2_lockcapture [-dqyi]

DESCRIPTION

       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.

OPTIONS

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

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

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

       -n <name of GFS2 filesystem>,  --fs_name=<name of GFS2 filesystem>
              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.

NOTES

       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)

AUTHOR

       Shane Bradley <sbradley@fedoraproject.org>

FILES

       /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/

SEE ALSO

                                                           gfs2_lockcapture(8)