Problem
During activation of changes from master for a remote site, we faced an issue. This will happen if WATO is enabled on the remote site and you have pending changes there.
On the slave:
In the 'replication_changes_slave.mk', you will find the pending change.
~/var/check_mk/wato
OMD[slave]:~/var/check_mk/wato$ ll
total 36
drwxrwx--- 2 slave slave 4096 Dec 11 10:07 activation/
drwxrwxr-x 2 slave slave 4096 Dec 11 13:24 auth/
-rw-rw---- 1 slave slave 35 Dec 10 14:14 automation_secret.mk
-rw-rw---- 1 slave slave 9 Dec 10 14:12 last_bake.mk
drwxrwxr-x 2 slave slave 4096 Dec 10 14:12 log/
drwxrwx--- 2 slave slave 4096 Dec 10 14:12 php-api/
-rw-rw---- 1 slave slave 301 Dec 11 13:24 replication_changes_slave.mk
-rw-rw---- 1 slave slave 130 Dec 11 12:00 replication_status_slave.mk
drwxrwxr-x 3 slave slave 4096 Dec 11 12:00 snapshots/
OMD[slave]:~/var/check_mk/wato$ cat replication_status_slave.mk
{'current_activation': None, 'last_activation': 'f9607439-2303-412c-a188-f4e0f54702ae', 'times': {'restart': 1.6235217094421388}}
OMD[slave]:~/var/check_mk/wato$ cat replication_changes_slave.mk
{'need_restart': True, 'need_sync': True, 'user_id': u'cmkadmin', 'time': 1607689496.047742, 'domains': ['check_mk'], 'text': u'Modified host p19master-vcenter-agent.txt.', 'object': ('CREHost', 'p19master-vcenter-agent.txt'), 'id': 'cc91dcc8-bcc6-46fa-a264-9bdc5b041720', 'action_name': 'edit-host'}
Solution
In order to activate changes successfully from master to slave, you need to delete both replication-Files on the slave:
OMD[slave]:~/var/check_mk/wato$ rm replication_*
To avoid this issue, disable WATO on the slave and push the configuration only from master.
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