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PACEMAKER(8) System Administration Utilities PACEMAKER(8)

NAME

Pacemaker - Part of the Pacemaker cluster resource manager

SYNOPSIS

crm_mon mode [options]

DESCRIPTION

Provides a summary of cluster's current state.

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

OPTIONS

Help Options:

-?, --help
Show help options
Show all help options
Show output help
Show display options
Show additional options
Show deprecated options

Output Options:

Specify output format as one of: console (default), html, text, xml
Specify file name for output (or "-" for stdout)
Add CGI headers (requires --output-as=html)
Link to an external stylesheet (requires --output-as=html)
Specify a page title (requires --output-as=html)
Use more highly formatted output (requires --output-as=text)

Display Options:

A list of sections to include in the output. See `Output Control` help for more information.
A list of sections to exclude from the output. See `Output Control` help for more information.
When displaying information about nodes, show only what's related to the given node, or to all nodes tagged with the given tag
When displaying information about resources, show only what's related to the given resource, or to all resources tagged with the given tag
Group resources by node
Display inactive resources
Display resource fail counts
Display resource operation history
Display resource operation history with timing details
Display cluster tickets
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
Display negative location constraints [optionally filtered by id prefix]
Display node attributes
Hide all headers
Show more details (node IDs, individual clone instances)
Brief output
Display the cluster status once as a simple one line output (suitable for nagios)

Additional Options:

Update frequency (default is 5 seconds)
-1, --one-shot
Display the cluster status once on the console and exit
Run in the background as a daemon. Requires at least one of --output-to and --external-agent.
(Advanced) Daemon pid file location
A program to run when resource operations take place
A recipient for your program (assuming you want the program to send something to someone).
Listen for fencing events. For use with --external-agent.

Deprecated Options:

Write cluster status to the named HTML file. Use --output-as=html --output-to=FILE instead.
Write cluster status as XML to stdout. This will enable one-shot mode. Use --output-as=xml instead.
Disable the use of ncurses. Use --output-as=text instead.
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
Increase debug output (may be specified multiple times)
Be less descriptive in output.

NOTES

If this program is called as crm_mon.cgi, --output-as=html --html-cgi will automatically be 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 just an integer number of seconds, a number plus units (ms/msec/us/usec/s/sec/m/min/h/hr), or an ISO 8601 period specification.

OUTPUT CONTROL

By default, a certain list of sections are written to the output destination. The default varies based on the output format - XML includes everything, while other output formats will display less. This list can be modified with the --include and --exclude command line options. Each option may be given multiple times on the command line, and each can give a comma-separated list of sections. The options are applied to the default set, from left to right as seen on the command line. For a list of valid sections, pass --include=list or --exclude=list.

INTERACTIVE USE

When run interactively, crm_mon can be told to hide and display various sections of output. To see a help screen explaining the options, hit '?'. Any key stroke aside from those listed will cause the screen to refresh.

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 --output-as html --output-to /path/to/docroot/filename.html

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

crm_mon --output-as xml

AUTHOR

Written by Andrew Beekhof

November 2021 Pacemaker 2.1.2