AlwaysOn : Unable to resume data movement

  • Hello
    Few of the databases are showing as 'Not synchronizing' in AlwaysOn dashboard

    Error logs :
    AlwaysOn Availability Groups connection with secondary database terminated for primary database 'DB name' on the availability replica with Replica ID: {}. This is an informational message only. No user action is required.

    The target database, 'DB name', is participating in an availability group and is currently not accessible for queries. Either data movement is suspended or the availability replica is not enabled for read access. To allow read-only access to this and other databases in the availability group, enable read access to one or more secondary availability replicas in the group.  For more information, see the ALTER AVAILABILITY GROUP statement in SQL Server

    On the secondary replica there was a pause icon & red cross next to the Availability Databases(only few DB's in same AG). On primary all green.These databases are configured as synchronous commit & non-readable. Unable to resume the data movements as the AO replica manager is failing to start WSFC(Error 35220).All cluster services are online

    log_reuse_wait column for these databases are showing as AVAILABILITY_REPLICA and could find any blocks or long running transaction. Can some one please help?

    Thanks in advance

  • This was removed by the editor as SPAM

  • Hi 
    This happened to us few months back. We rebooted the secondary replica server and it resolved the issue.

    Best Regards,

  • Johnson Welch - Tuesday, June 20, 2017 11:20 PM

    Restart the SQL Server machine & reset the SQL Server service status to Started. sometimes solve these issue.

    Ricky Valencia - Thursday, July 20, 2017 12:32 AM

    Hi 
    This happened to us few months back. We rebooted the secondary replica server and it resolved the issue.

    Best Regards,

    This would lead me to conclude the mirroring endpoint wasnt started, it's easy to check using the following query

    select name, type_desc, state_desc, is_encryption_enabled,

    connection_auth_desc, encryption_algorithm_desc

    from sys.database_mirroring_endpoints

    -----------------------------------------------------------------------------------------------------------

    "Ya can't make an omelette without breaking just a few eggs" 😉

  • There are  multiple items which can be checked for Always On Availability Groups so I put together a blog post to start:

    https://justdaveinfo.wordpress.com/2017/08/02/sql-server-availability-groups-items-to-check/

    If there is still an issue, please let us know.

    Regards,
    David.

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