-> I was tasked to setup Always on Availability group on a newly provisioned database server.
-> Everything went fine from the “New Availability Group Wizard”, except the last step which was to “Join the Database to Availability Group”. This last step was executing indefinitely.
-> Checked for blockings and could not see anything either on JBSAG1\JBSAG2.
->Checked SQL Server errorlog,
Nothing Interesting on SQL Server errorlog.
2022-02-25 05:58:01.310 spid52 Starting up database ‘JBDB’.
2022-02-25 05:58:01.320 spid52 The database ‘JBDB’ is marked RESTORING and is in a state that does not allow recovery to be run.
2022-02-25 05:58:01.320 spid52 State information for database ‘JBDB’ – Hardened Lsn: ‘(38:114032:1)’ Commit LSN: ‘(0:0:0)’ Commit Time: ‘Feb 25 2022 5:25AM’
2022-02-25 05:58:01.330 spid52 State information for database ‘JBDB’ – Hardened Lsn: ‘(38:114032:1)’ Commit LSN: ‘(0:0:0)’ Commit Time: ‘Feb 25 2022 5:25AM’
2022-02-25 05:58:01.330 spid52 Starting up database ‘JBDB’.
2022-02-25 05:58:01.340 spid52 The database ‘JBDB’ is marked RESTORING and is in a state that does not allow recovery to be run.
-> Executed below query on both JBSAG1 and JBSAG2,
select r.replica_server_name, r.endpoint_url, rs.connected_state_desc, rs.last_connect_error_description, rs.last_connect_error_number, rs.last_connect_error_timestamp from sys.dm_hadr_availability_replica_states rs join sys.availability_replicas r on rs.replica_id=r.replica_id
-> Below is the error message,
Connection attempt failed with error: ‘10060(A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.)’.
-> It is clear that that there is a connection issue where JBSAG2 is not able to connect to JBSAG1.
-> Since Always On Connection happens via Endpoint port 5022. Checked if a telnet connection to 5022 works for each of these servers and as expected it failed,
telnet JBSAG1 5022 -- Execute on JBSAG2 telnet JBSAG2 5022 -- Execute on JBSAG1
-> You can request your platforms/Network team to open port 5022 on these servers. Since I got this issue on a LAB environment, I will do it my self on both JBSAG1 and JBSAG2,
-> Once the above actions are done both on JBSAG1 and JBSAG2. The wizard completed as expected.
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