Pacemaker − Part of the Pacemaker cluster resource manager
crm_mon [options]
Provides a summary of cluster’s current state.
Outputs varying levels of detail in a number of different formats.
Help
Options:
−?, −−help
Show help options
−−help−all
Show all help options
−−help−output
Show output help
−−help−display
Show display options
−−help−additional
Show additional options
−−help−deprecated
Show deprecated options
Output
Options:
−−output−as=FORMAT
Specify output format as one of: console (default), html, text, xml, none
−−output−to=DEST
Specify file name for output (or "−" for stdout)
−−html−cgi
Add CGI headers (requires −−output−as=html)
−−html−stylesheet=URI
Link to an external stylesheet (requires −−output−as=html)
−−html−title=TITLE
Specify a page title (requires −−output−as=html)
Display
Options:
−I,
−−include=SECTION(s)
A list of sections to include in the output. See ‘Output Control‘ help for more information.
−U, −−exclude=SECTION(s)
A list of sections to exclude from the output. See ‘Output Control‘ help for more information.
−−node=NODE
When displaying information about nodes, show only what’s related to the given node, or to all nodes tagged with the given tag
−−resource=RSC
When displaying information about resources, show only what’s related to the given resource, or to all resources tagged with the given tag
−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
−m, −−fence−history=LEVEL
Show fence history: 0=off, 1=failures and pending (default without option), 2=add successes (default without value for option), 3=show full history without reduction to most recent of each flavor
−L, −−neg−locations
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)
−−show−description
Show resource descriptions
−b, −−brief
Brief output
Additional
Options:
−i,
−−interval=TIMESPEC
Update frequency (default is 5 seconds)
−1, −−one−shot
Display the cluster status once and exit
−d, −−daemonize
Run in the background as a daemon. Requires at least one of −−output−to and −−external−agent.
−p, −−pid−file=FILE
(Advanced) Daemon pid file location
−E, −−external−agent=FILE
A program to run when resource operations take place
−e, −−external−recipient=RCPT
A recipient for your program (assuming you want the program to send something to someone).
−W, −−watch−fencing
Listen for fencing events. For use with −−external−agent.
Deprecated
Options:
−h,
−−as−html=FILE
Write cluster status to the named HTML file. Use −−output−as=html −−output−to=FILE instead.
−X, −−as−xml
Write cluster status as XML to stdout. This will enable one−shot mode. Use −−output−as=xml instead.
−s, −−simple−status
Display the cluster status once as a simple one line output (suitable for nagios)
−N, −−disable−ncurses
Disable the use of ncurses. Use −−output−as=text instead.
−w, −−web−cgi
Web mode with output suitable for CGI (preselected when run as *.cgi). Use −−output−as=html −−html−cgi instead.
Application
Options:
−$, −−version
Display software version and exit
−V, −−verbose
Increase debug output (may be specified multiple times)
−Q, −−quiet
Be less descriptive in output.
If this program is called as crm_mon.cgi, −−output−as=html and −−html−cgi are automatically added to the command line arguments.
Time Specification:
The TIMESPEC in any command line option can be specified in many different formats. It can be an integer number of seconds, a number plus units (us/usec/ms/msec/s/sec/m/min/h/hr), or an ISO 8601 period specification.
By default, a particular set of sections are written to the output destination. The default varies based on the output format: XML includes all sections by default, while other output formats include less. This set can be modified with the −−include and −−exclude command line options. Each option may be passed multiple times, and each can specify a comma−separated list of sections. The options are applied to the default set, in order from left to right as they are passed on the command line. For a list of valid sections, pass −−include=list or −−exclude=list.
When run interactively, crm_mon can be told to hide and show various sections of output. To see a help screen explaining the options, press ’?’. Any key stroke aside from those listed will cause the screen to refresh.
Display the cluster status on the console with updates as they occur:
crm_mon
Display the cluster status once and exit:
crm_mon −1
Display the 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 −−output−as html −−output−to /path/to/docroot/filename.html
Display the cluster status as XML:
crm_mon −−output−as xml
Written by Andrew Beekhof and the Pacemaker project contributors