Pacemaker − Part of the Pacemaker cluster resource manager
crm_diff original_xml operation [options]
Compare two Pacemaker configurations (in XML format) to produce a custom diff−like output, or apply such an output as a patch
Help
Options:
−h, −−help
Show help options
−−help−all
Show all help options
−−help−xml
Show original XML options
−−help−operation
Show operation options
−−help−additional
Show additional options
Original
XML:
−o, −−original=FILE
XML is contained in the named file
−O, −−original−string=STRING
XML is contained in the supplied string
Operation:
−n, −−new=FILE
Compare the original XML to the contents of the named file
−N, −−new−string=STRING
Compare the original XML with the contents of the supplied string
−p, −−patch=FILE
Patch the original XML with the contents of the named file
Additional
Options:
−c, −−cib
Compare/patch the inputs as a CIB (includes versions details)
|
−s, −−stdin |
−u, −−no−version
Generate the difference without versions details
Application
Options:
−$, −−version
Display software version and exit
−V, −−verbose
Increase debug output (may be specified multiple times)
Obtain the two different configuration files by running cibadmin on the two cluster setups to compare:
# cibadmin −−query > cib−old.xml
# cibadmin −−query > cib−new.xml
Calculate and save the difference between the two files:
# crm_diff −−original cib−old.xml −−new cib−new.xml > patch.xml
Apply the patch to the original file:
# crm_diff −−original cib−old.xml −−patch patch.xml > updated.xml
Apply the patch to the running cluster:
# cibadmin −−patch −x patch.xml
Written by Andrew Beekhof and the Pacemaker project contributors