[Junos] What is difference between 'commit' and 'commit full'?

A 'commit' (performed after configuration changes) checks only the corresponding daemons. However, the 'commit full' action requires all daemons to check and evaluate the new configuration. A 'commit full' is useful if you get an error with 'commit' or when you've changed the config significantly.

CAUTION: 'commit full' is an unsupported CLI command; it might cause a network outage since it does a replace of the entire config, not just a config change.

For example, when only the OSPF stanza is changed, only the routing protocol daemon responds as below:

commit |display detail 
2020-06-07 08:21:25 UTC: Obtaining lock for commit
2020-06-07 08:21:25 UTC: updating commit revision
2020-06-07 08:21:25 UTC: UI extensions feature is not configured
2020-06-07 08:21:25 UTC: Started running translation script
2020-06-07 08:21:25 UTC: Finished running translation script
2020-06-07 08:21:25 UTC: start loading commit script changes
2020-06-07 08:21:25 UTC: no commit script changes
2020-06-07 08:21:25 UTC: no transient commit script changes
2020-06-07 08:21:25 UTC: finished loading commit script changes
2020-06-07 08:21:25 UTC: No translation output from the scripts
2020-06-07 08:21:25 UTC: copying juniper.db to juniper.data+
2020-06-07 08:21:25 UTC: finished copying juniper.db to juniper.data+
2020-06-07 08:21:25 UTC: exporting juniper.conf
2020-06-07 08:21:25 UTC: expanding interface-ranges
2020-06-07 08:21:25 UTC: finished expanding interface-ranges
2020-06-07 08:21:25 UTC: expanding groups
2020-06-07 08:21:25 UTC: finished expanding groups
2020-06-07 08:21:25 UTC: setup foreign files
2020-06-07 08:21:25 UTC: update license counters
2020-06-07 08:21:25 UTC: finish license counters
2020-06-07 08:21:25 UTC: propagating foreign files
2020-06-07 08:21:25 UTC: cdg returns = 7(persist groups is not configured (needed for cdg))
2020-06-07 08:21:25 UTC: complete foreign files
2020-06-07 08:21:25 UTC: dropping unchanged foreign files
2020-06-07 08:21:25 UTC: executing 'ffp propagate'
2020-06-07 08:21:25 UTC: daemons checking new configuration
2020-06-07 08:21:25 UTC: commit wrapup...
2020-06-07 08:21:25 UTC: start ffp activate
2020-06-07 08:21:25 UTC: executing 'ffp activate'
2020-06-07 08:21:26 UTC: activating '/var/etc/pam.conf'
2020-06-07 08:21:26 UTC: activating '/var/etc/pam_radius.conf'
2020-06-07 08:21:26 UTC: activating '/var/etc/pam_tacplus.conf'
2020-06-07 08:21:26 UTC: activating '/var/etc/issue'
2020-06-07 08:21:26 UTC: activating '/var/etc/certs'
2020-06-07 08:21:26 UTC: activating '/var/etc/motd'
2020-06-07 08:21:26 UTC: activating '/var/etc/max-db-size-cfg'
2020-06-07 08:21:26 UTC: activating '/var/etc/subs-mgmt-cfg'
2020-06-07 08:21:26 UTC: activating '/var/etc/ephinst.conf'
2020-06-07 08:21:26 UTC: executing foreign_commands
2020-06-07 08:21:26 UTC: /bin/sh /etc/rc.ui ui_setup_users (sh)
2020-06-07 08:21:26 UTC: not executing ui_commit in rc.ui
2020-06-07 08:21:26 UTC: finish ffp activate
2020-06-07 08:21:26 UTC: copying configuration to juniper.save
2020-06-07 08:21:26 UTC: db_check_constraint_ids_clear start
2020-06-07 08:21:26 UTC: db_check_constraint_ids_clear done
2020-06-07 08:21:26 UTC: db_groups_info_clear start
2020-06-07 08:21:26 UTC: db_groups_info_clear done
2020-06-07 08:21:26 UTC: activating '/var/run/db/juniper.data'
2020-06-07 08:21:26 UTC: Rotate backup configs
2020-06-07 08:21:26 UTC: ssync begins
2020-06-07 08:21:26 UTC: ssync ends
2020-06-07 08:21:26 UTC: ssync begins
2020-06-07 08:21:26 UTC: ssync ends
2020-06-07 08:21:26 UTC: notifying daemons of new configuration
2020-06-07 08:21:26 UTC: ssync begins
2020-06-07 08:21:26 UTC: ssync ends
2020-06-07 08:21:26 UTC: commit complete
commit complete

See the attached for the 'commit full' detail list: KB15410 commit full detail [txt]
Note: All daemons are evaluated.

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