False Multi-Domain Server environment Sync problems

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False Multi-Domain Server environment Sync problems

Technical Level

Solution ID	sk151392
Technical Level
Product	Multi-Domain Management
Version	R80.10, R80.20
OS	Gaia
Date Created	16-Apr-2019
Last Modified	28-May-2019

Symptoms

"peer <name> failed to synchronized me" message appears in Multi-Domain Server HA window although machines are successfully synced.
SmartConsole shows from the MDS GUI:

Sync failed: From XXXXXXXXX to YYYYYYYYY. To resolve the problem, please connect to another server, and perform a manual sync on this server
Manual full sync resolves the issue momentarily, then the problem comes back after some time.
After turning on TRACE for topic HA on the machine with the error status:

$MDS_FWDIR/scripts/cpm_debug.sh -t HA -s TRACE

You can see lines in cpm.elg that show 'syncing=false', as in the following output:

DD/MM/YY HH:MM:SS,MS TRACE internal.ha.HaStatusMgr [qtpxxxx-xxxx]: peerStatus: HaPeerStatus{fwmErrorMsg='''', syncedByMeStatus= HaSyncStatus{syncState=Ok, communicating=true, lastSeen=Thu Apr 11 14:51:28 BST 2019, syncing=false, lastSuccessfulSync=DDD MMM DD HH:MM:SS XXX YYYY}...

Cause

The status was not updated correctly after a recent full sync.

Solution

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