NAME

       Pacemaker - Part of the Pacemaker cluster resource manager

SYNOPSIS

       crm_mon mode [options]

DESCRIPTION

       crm_mon - Provides a summary of cluster's current state.

       Outputs varying levels of detail in a number of different formats.

OPTIONS

       -?, --help
              This text

       -$, --version
              Version information

       -V, --verbose
              Increase debug output

       -Q, --quiet
              Display only essential output

   Modes (mutually exclusive):
       -h, --as-html=value
              Write cluster status to the named html file

       -X, --as-xml
              Write cluster status as xml to stdout. This will enable one-shot mode.

       -w, --web-cgi
              Web mode with output suitable for CGI (preselected when run as *.cgi)

       -s, --simple-status
              Display the cluster status once as a simple one line output (suitable for nagios)

       -S, --snmp-traps=value
              Send SNMP traps to this station

       -C, --snmp-community=value
              Specify community for SNMP traps(default is NULL)

       -T, --mail-to=value
              Send Mail alerts to this user.  See also --mail-from, --mail-host, --mail-prefix

   Display Options:
       -n, --group-by-node
              Group resources by node

       -r, --inactive
              Display inactive resources

       -f, --failcounts
              Display resource fail counts

       -o, --operations
              Display resource operation history

       -t, --timing-details
              Display resource operation history with timing details

       -c, --tickets
              Display cluster tickets

       -W, --watch-fencing
              Listen  for  fencing  events.  For  use  with  --external-agent,  --mail-to  and/or
              --snmp-traps where supported

       -L, --neg-locations[=value]
              Display negative location constraints [optionally filtered by id prefix]

       -A, --show-node-attributes
              Display node attributes

       -D, --hide-headers
              Hide all headers

       -R, --show-detail
              Show more details (node IDs, individual clone instances)

       -b, --brief
              Brief output

   Additional Options:
       -i, --interval=value
              Update frequency in seconds

       -1, --one-shot
              Display the cluster status once on the console and exit

       -N, --disable-ncurses
              Disable the use of ncurses

       -d, --daemonize
              Run in the background as a daemon

       -p, --pid-file=value
              (Advanced) Daemon pid file location

       -F, --mail-from=value
              Mail alerts should come from the named user

       -H, --mail-host=value
              Mail alerts should be sent via the named host

       -P, --mail-prefix=value
              Subjects for mail alerts should start with this string

       -E, --external-agent=value
              A program to run when resource operations take place.

       -e, --external-recipient=value A recipient for your program (assuming you want the program
              to send something to someone).

EXAMPLES

       Display the cluster status on the console with updates as they occur:

              # crm_mon

       Display the cluster status on the console just once then exit:

              # crm_mon -1

       Display  your  cluster  status, group resources by node, and include inactive resources in
       the list:

              # crm_mon --group-by-node --inactive

       Start crm_mon as a background daemon and have it write the cluster status to an HTML file:

              # crm_mon --daemonize --as-html /path/to/docroot/filename.html

       Start crm_mon and export the current cluster status as xml to stdout, then exit.:

              # crm_mon --as-xml

       Start crm_mon as a background daemon and have it send email alerts:

              # crm_mon --daemonize --mail-to user@example.com --mail-host mail.example.com

       Start crm_mon as a background daemon and have it send SNMP alerts:

              # crm_mon --daemonize --snmp-traps snmptrapd.example.com

AUTHOR

       Written by Andrew Beekhof

REPORTING BUGS

       Report bugs to users@clusterlabs.org