replication-manager
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signal18
"ERR00015" ,Could not get privileges for user
used replication-manager-pro-2.0.0_20_g97b7a-1.x86_64.rpm installed percona5.6.32 gtid mode = off 1master --> 2 slave master: 10.1.1.173 slave1: 10.1.1.171 slave2: 10.1.1.172
when start mrm , show 2 error logs: 1, "ERR00015", "Could not get privileges for user rpl on server 10.1.1.172:3306: No replication user defined. Please check the replication user is created with the required privileges"; 2, "ERR00005", "Could not get privileges for user mrm@PROXY-NODE-1: No replication user defined. Please check the replication user is created with the required privileges". PS: 1, At cluster all mysql hosts already have rpl user and grants : GRANT REPLICATION SLAVE ON . TO 'rpl'@'10.%' ; 2, only 10.1.1.172:3306: have in error log , other not 2, mrm user at all cluster hosts have all privelges. 3, PROXY-NODE-1 host is running MRM host's hostname how can fix the error log?
Other than that you can try starting the db nodes with skip-name-resolve that is a good practice anyway !
2018/05/16 12:10:28 [pub] INFO - Failover in interactive mode 2018/05/16 12:10:28 [pub] INFO - Loading 0 proxies 2018/05/16 12:10:28 [pub] DEBUG - Monitoring server loop 2018/05/16 12:10:28 [pub] DEBUG - Server [0]: URL: 10.1.1.171:3306 State: Suspect PrevState: Suspect 2018/05/16 12:10:28 [pub] DEBUG - Server [1]: URL: 10.1.1.172:3306 State: Suspect PrevState: Suspect 2018/05/16 12:10:28 [pub] DEBUG - Server [2]: URL: 10.1.1.173:3306 State: Suspect PrevState: Suspect 2018/05/16 12:10:28 [pub] DEBUG - State unconnected set by non-master rule on server 10.1.1.171:3306 2018/05/16 12:10:28 [pub] DEBUG - Lookup server 10.1.1.171:3306 if maxscale binlog server: 10.1.1.173:3306 2018/05/16 12:10:28 [pub] DEBUG - Lookup server 10.1.1.172:3306 if maxscale binlog server: 10.1.1.173:3306 2018/05/16 12:10:28 [pub] DEBUG - Lookup server 10.1.1.173:3306 if maxscale binlog server: 10.1.1.173:3306 2018/05/16 12:10:28 [pub] DEBUG - Lookup server 10.1.1.171:3306 if maxscale binlog server: 10.1.1.173:3306 2018/05/16 12:10:28 [pub] DEBUG - Lookup server 10.1.1.172:3306 if maxscale binlog server: 10.1.1.173:3306 2018/05/16 12:10:28 [pub] DEBUG - Lookup server 10.1.1.173:3306 if maxscale binlog server: 10.1.1.173:3306 2018/05/16 12:10:28 [pub] DEBUG - GetMasterFromReplication server 171 lookup if server 10.1.1.171:3306 is the one : 171 2018/05/16 12:10:28 [pub] INFO - Set stateSlave from rejoin slave 10.1.1.172:3306 2018/05/16 12:10:28 [pub] DEBUG - Lookup server 10.1.1.171:3306 if maxscale binlog server: 10.1.1.173:3306 2018/05/16 12:10:28 [pub] DEBUG - Lookup server 10.1.1.172:3306 if maxscale binlog server: 10.1.1.173:3306 2018/05/16 12:10:28 [pub] DEBUG - Lookup server 10.1.1.173:3306 if maxscale binlog server: 10.1.1.173:3306 2018/05/16 12:10:28 [pub] DEBUG - Lookup server 10.1.1.171:3306 if maxscale binlog server: 10.1.1.173:3306 2018/05/16 12:10:28 [pub] DEBUG - Lookup server 10.1.1.172:3306 if maxscale binlog server: 10.1.1.173:3306 2018/05/16 12:10:28 [pub] DEBUG - Lookup server 10.1.1.173:3306 if maxscale binlog server: 10.1.1.173:3306 2018/05/16 12:10:28 [pub] DEBUG - GetMasterFromReplication server 171 lookup if server 10.1.1.171:3306 is the one : 171 2018/05/16 12:10:28 [pub] INFO - Set stateSlave from rejoin slave 10.1.1.173:3306 2018/05/16 12:10:28 [pub] DEBUG - Server 10.1.1.171:3306 was set master as last non slave 2018/05/16 12:10:28 [pub] DEBUG - Privilege check on 10.1.1.171:3306 2018/05/16 12:10:28 [pub] DEBUG - Client connection found on server 10.1.1.171:3306 with IP 10.1.1.174 for host 10.1.1.174 2018/05/16 12:10:28 [pub] DEBUG - Server 10.1.1.172:3306 is configured as a slave 2018/05/16 12:10:28 [pub] DEBUG - Privilege check on 10.1.1.172:3306 2018/05/16 12:10:28 [pub] DEBUG - Client connection found on server 10.1.1.172:3306 with IP 10.1.1.174 for host 10.1.1.174 2018/05/16 12:10:28 [pub] DEBUG - Server 10.1.1.173:3306 is configured as a slave 2018/05/16 12:10:28 [pub] DEBUG - Privilege check on 10.1.1.173:3306 2018/05/16 12:10:28 [pub] DEBUG - Client connection found on server 10.1.1.173:3306 with IP 10.1.1.174 for host 10.1.1.174 2018/05/16 12:10:28 [pub] DEBUG - GetMasterFromReplication server 171 lookup if server 10.1.1.171:3306 is the one : 171 2018/05/16 12:10:28 [pub] DEBUG - GetMasterFromReplication server 171 lookup if server 10.1.1.171:3306 is the one : 171 2018/05/16 12:10:28 [pub] DEBUG - Checking if server 10.1.1.172 is a slave of server 10.1.1.171 2018/05/16 12:10:28 [pub] DEBUG - GetMasterFromReplication server 171 lookup if server 10.1.1.171:3306 is the one : 171 2018/05/16 12:10:28 [pub] DEBUG - Checking if server 10.1.1.173 is a slave of server 10.1.1.171 2018/05/16 12:10:28 [pub] DEBUG - GetMasterFromReplication server 171 lookup if server 10.1.1.171:3306 is the one : 171 2018/05/16 12:10:28 [pub] STATE - OPENED WARN0060 : No semisync settings on master 10.1.1.171:3306 2018/05/16 12:10:28 [pub] STATE - OPENED WARN0070 : No GTID strict mode on master 10.1.1.171:3306 2018/05/16 12:10:28 [pub] STATE - OPENED ERR00005 : Could not get privileges for user mrm@PROXY-NODE-1: No replication user defined. Please check the replication user is created with the required privileges 2018/05/16 12:10:28 [pub] STATE - OPENED WARN0048 : No semisync settings on slave 10.1.1.172:3306 2018/05/16 12:10:28 [pub] STATE - OPENED WARN0058 : No GTID strict mode on slave 10.1.1.172:3306 2018/05/16 12:10:28 [pub] STATE - OPENED WARN0054 : No log of replication queries in slow query on slave 10.1.1.172:3306 2018/05/16 12:10:28 [pub] STATE - OPENED WARN0062 : No Heartbeat <= 1s on master 10.1.1.171:3306 2018/05/16 12:10:28 [pub] STATE - OPENED WARN0064 : No InnoDB durability on master 10.1.1.171:3306 2018/05/16 12:10:28 [pub] STATE - OPENED ERR00021 : All cluster db servers down 2018/05/16 12:10:28 [pub] STATE - OPENED ERR00015 : Could not get privileges for user rpl on server 10.1.1.172:3306: No replication user defined. Please check the replication user is created with the required privileges 2018/05/16 12:10:28 [pub] STATE - OPENED WARN0052 : No InnoDB durability on slave 10.1.1.172:3306 2018/05/16 12:10:30 [pub] DEBUG - Monitoring server loop 2018/05/16 12:10:30 [pub] DEBUG - Server [0]: URL: 10.1.1.171:3306 State: Master PrevState: StandAlone 2018/05/16 12:10:30 [pub] DEBUG - Server [1]: URL: 10.1.1.172:3306 State: Slave PrevState: Slave 2018/05/16 12:10:30 [pub] DEBUG - Server [2]: URL: 10.1.1.173:3306 State: Slave PrevState: Slave 2018/05/16 12:10:30 [pub] DEBUG - Master [ ]: URL: 10.1.1.171:3306 State: Master PrevState: StandAlone 2018/05/16 12:10:30 [pub] DEBUG - Slave [0]: URL: 10.1.1.172:3306 State: Slave PrevState: Slave 2018/05/16 12:10:30 [pub] DEBUG - Slave [1]: URL: 10.1.1.173:3306 State: Slave PrevState: Slave 2018/05/16 12:10:30 [pub] DEBUG - Server 10.1.1.171:3306 was set master as last non slave 2018/05/16 12:10:30 [pub] DEBUG - Privilege check on 10.1.1.171:3306 2018/05/16 12:10:30 [pub] DEBUG - Client connection found on server 10.1.1.171:3306 with IP 10.1.1.174 for host 10.1.1.174 2018/05/16 12:10:30 [pub] DEBUG - Server 10.1.1.172:3306 is configured as a slave 2018/05/16 12:10:30 [pub] DEBUG - Privilege check on 10.1.1.172:3306 2018/05/16 12:10:30 [pub] DEBUG - Client connection found on server 10.1.1.172:3306 with IP 10.1.1.174 for host 10.1.1.174 2018/05/16 12:10:30 [pub] DEBUG - Server 10.1.1.173:3306 is configured as a slave 2018/05/16 12:10:30 [pub] DEBUG - Privilege check on 10.1.1.173:3306 2018/05/16 12:10:30 [pub] DEBUG - Client connection found on server 10.1.1.173:3306 with IP 10.1.1.174 for host 10.1.1.174 2018/05/16 12:10:30 [pub] DEBUG - GetMasterFromReplication server 171 lookup if server 10.1.1.171:3306 is the one : 171 2018/05/16 12:10:30 [pub] DEBUG - GetMasterFromReplication server 171 lookup if server 10.1.1.171:3306 is the one : 171 2018/05/16 12:10:30 [pub] DEBUG - Checking if server 10.1.1.172 is a slave of server 10.1.1.171 2018/05/16 12:10:30 [pub] DEBUG - GetMasterFromReplication server 171 lookup if server 10.1.1.171:3306 is the one : 171 2018/05/16 12:10:30 [pub] DEBUG - Checking if server 10.1.1.173 is a slave of server 10.1.1.171 2018/05/16 12:10:30 [pub] DEBUG - GetMasterFromReplication server 171 lookup if server 10.1.1.171:3306 is the one : 171 2018/05/16 12:10:30 [pub] STATE - RESOLV ERR00021 : All cluster db servers down 2018/05/16 12:10:30 [pub] STATE - OPENED WARN0007 : At least one server is not ACID-compliant. Please make sure that sync_binlog and innodb_flush_log_at_trx_commit are set to 1 2018/05/16 12:10:31 [pub] DEBUG - Lookup server 10.1.1.171:3306 if maxscale binlog server: 10.1.1.173:3306 2018/05/16 12:10:31 [pub] DEBUG - Lookup server 10.1.1.172:3306 if maxscale binlog server: 10.1.1.173:3306 2018/05/16 12:10:31 [pub] DEBUG - Lookup server 10.1.1.173:3306 if maxscale binlog server: 10.1.1.173:3306 2018/05/16 12:10:32 [pub] DEBUG - Lookup server 10.1.1.171:3306 if maxscale binlog server: 10.1.1.173:3306 2018/05/16 12:10:32 [pub] DEBUG - Lookup server 10.1.1.172:3306 if maxscale binlog server: 10.1.1.173:3306 2018/05/16 12:10:32 [pub] DEBUG - Lookup server 10.1.1.173:3306 if maxscale binlog server: 10.1.1.173:3306 2018/05/16 12:10:32 [pub] DEBUG - Monitoring server loop 2018/05/16 12:10:32 [pub] DEBUG - Server [0]: URL: 10.1.1.171:3306 State: Master PrevState: Master 2018/05/16 12:10:32 [pub] DEBUG - Server [1]: URL: 10.1.1.172:3306 State: Slave PrevState: Slave 2018/05/16 12:10:32 [pub] DEBUG - Server [2]: URL: 10.1.1.173:3306 State: Slave PrevState: Slave 2018/05/16 12:10:32 [pub] DEBUG - Master [ ]: URL: 10.1.1.171:3306 State: Master PrevState: Master 2018/05/16 12:10:32 [pub] DEBUG - Slave [0]: URL: 10.1.1.172:3306 State: Slave PrevState: Slave 2018/05/16 12:10:32 [pub] DEBUG - Slave [1]: URL: 10.1.1.173:3306 State: Slave PrevState: Slave 2018/05/16 12:10:32 [pub] DEBUG - Server 10.1.1.171:3306 was set master as last non slave 2018/05/16 12:10:32 [pub] DEBUG - Privilege check on 10.1.1.171:3306 2018/05/16 12:10:32 [pub] DEBUG - Client connection found on server 10.1.1.171:3306 with IP 10.1.1.174 for host 10.1.1.174 2018/05/16 12:10:32 [pub] DEBUG - Server 10.1.1.172:3306 is configured as a slave 2018/05/16 12:10:32 [pub] DEBUG - Privilege check on 10.1.1.172:3306 2018/05/16 12:10:32 [pub] DEBUG - Client connection found on server 10.1.1.172:3306 with IP 10.1.1.174 for host 10.1.1.174 2018/05/16 12:10:32 [pub] DEBUG - Server 10.1.1.173:3306 is configured as a slave 2018/05/16 12:10:32 [pub] DEBUG - Privilege check on 10.1.1.173:3306 2018/05/16 12:10:32 [pub] DEBUG - Client connection found on server 10.1.1.173:3306 with IP 10.1.1.174 for host 10.1.1.174 2018/05/16 12:10:32 [pub] DEBUG - GetMasterFromReplication server 171 lookup if server 10.1.1.171:3306 is the one : 171 2018/05/16 12:10:32 [pub] DEBUG - GetMasterFromReplication server 171 lookup if server 10.1.1.171:3306 is the one : 171 2018/05/16 12:10:32 [pub] DEBUG - Checking if server 10.1.1.172 is a slave of server 10.1.1.171 2018/05/16 12:10:32 [pub] DEBUG - GetMasterFromReplication server 171 lookup if server 10.1.1.171:3306 is the one : 171 2018/05/16 12:10:32 [pub] DEBUG - Checking if server 10.1.1.173 is a slave of server 10.1.1.171 2018/05/16 12:10:32 [pub] DEBUG - GetMasterFromReplication server 171 lookup if server 10.1.1.171:3306 is the one : 171
There is an error return by this function : priv, err := dbhelper.GetPrivileges(server.Conn, server.ClusterGroup.dbUser, server.ClusterGroup.repmgrHostname, myip) with myip = 10.1.1.174
The function call such prepare statement and in theory your grant 10.% is test tested
splitip := strings.Split(ip, ".")
iprange1 := splitip[0] + ".%.%.%"
iprange2 := splitip[0] + "." + splitip[1] + ".%.%"
iprange3 := splitip[0] + "." + splitip[1] + "." + splitip[2] + ".%"
stmt := "SELECT MAX(Select_priv) as Select_priv, MAX(Process_priv) as Process_priv, MAX(Super_priv) as Super_priv, MAX(Repl_slave_priv) as Repl_slave_priv, MAX(Repl_client_priv) as Repl_client_priv, MAX(Reload_priv) as Reload_priv FROM mysql.user WHERE user = ? AND host IN(?,?,?,?,?,?,?,?,?)"
row := db.QueryRowx(stmt, user, host, ip, "%", ip+"/255.0.0.0", ip+"/255.255.0.0", ip+"/255.255.255.0", iprange1, iprange2, iprange3)
err := row.StructScan(&priv)
if err != nil && strings.Contains(err.Error(), "unsupported Scan") {
return priv, errors.New("No replication user defined. Please check the replication user is created with the required privileges")
}
We can see in your log the "No replication user defined. Please check the replication user is created with the required privileges"
can you send me a describe of the mysql.user table on Percona may be there are differences with other flavor i 'm not aware?
what is the exact entry for (password obfuscated) are you using, and would your password have any special characters that can cause this statement to fail?
- a dump of the mysql.user table can help me to figure this out
- the result of replication-manager-cli api --url="https://127.0.0.1:10005/api/clusters/pub/topology/servers" replication-manager-cli api --url="https://127.0.0.1:10005/api/clusters/pub/settings"
Nigel, also note that replication-manager-pro stand for provisioning and is used with opensvc for docker deployments is that what you would like to test ?
If it is the case you should build an opensvc cluster of agent before using and use our public collector to get databases compliances !
1, select * from mysql.user where User in ('mrm','rpl')\G *************************** 1. row *************************** Host: 10.% User: rpl Password: *D37209741C8249F4589CC9D0898DEC00 Select_priv: N Insert_priv: N Update_priv: N Delete_priv: N Create_priv: N Drop_priv: N Reload_priv: N Shutdown_priv: N Process_priv: N File_priv: N Grant_priv: N References_priv: N Index_priv: N Alter_priv: N Show_db_priv: N Super_priv: N Create_tmp_table_priv: N Lock_tables_priv: N Execute_priv: N Repl_slave_priv: Y Repl_client_priv: N Create_view_priv: N Show_view_priv: N Create_routine_priv: N Alter_routine_priv: N Create_user_priv: N Event_priv: N Trigger_priv: N Create_tablespace_priv: N ssl_type: ssl_cipher: x509_issuer: x509_subject: max_questions: 0 max_updates: 0 max_connections: 0 max_user_connections: 0 plugin: mysql_native_password authentication_string: password_expired: N *************************** 2. row *************************** Host: 10.1.% User: mrm Password: *D0D15496379A0DD9D7AA3CEA17E1 Select_priv: Y Insert_priv: Y Update_priv: Y Delete_priv: Y Create_priv: Y Drop_priv: Y Reload_priv: Y Shutdown_priv: Y Process_priv: Y File_priv: Y Grant_priv: N References_priv: Y Index_priv: Y Alter_priv: Y Show_db_priv: Y Super_priv: Y Create_tmp_table_priv: Y Lock_tables_priv: Y Execute_priv: Y Repl_slave_priv: Y Repl_client_priv: Y Create_view_priv: Y Show_view_priv: Y Create_routine_priv: Y Alter_routine_priv: Y Create_user_priv: Y Event_priv: Y Trigger_priv: Y Create_tablespace_priv: Y ssl_type: ssl_cipher: x509_issuer: x509_subject: max_questions: 0 max_updates: 0 max_connections: 0 max_user_connections: 0 plugin: `mysql_native_password authentication_string: password_expired: N 2, replication-manager-cli api --url="https://127.0.0.1:10005/api/clusters/pub/topology/servers" [Uploading 1.txt…] 3,replication-manager-cli api --url="https://127.0.0.1:10005/api/clusters/pub/settings" Enter Password: { "enterprise": "true", "interactive": "true", "failoverctr": "0", "maxdelay": "30", "faillimit": "3", "lastfailover": "N/A", "monheartbeats": "3086", "uptime": "0.00025", "uptimefailable": "0.00025", "uptimesemisync": "0.00000", "rplchecks": "true", "failsync": "false", "switchsync": "false", "verbose": "true", "rejoin": "true", "rejoinbackupbinlog": "true", "rejoinsemisync": "true", "rejoinflashback": "false", "rejoinunsafe": "false", "rejoindump": "false", "rejoinpseudogtid": "", "test": "true", "heartbeat": "false", "runstatus": "A", "isactive": "", "confgroup": "pub", "monitoringticker": "2", "failresettime": "0", "tosessionend": "3600", "httpauth": "false", "httpbootstrapbutton": "false", "graphitemetrics": "", "clusters": [ "pub" ], "regtests": [ "testSwitchoverAllSlavesDelayMultimasterNoRplChecksNoSemiSync", "testSwitchoverLongTransactionNoRplCheckNoSemiSync", "testSwitchoverLongQueryNoRplCheckNoSemiSync", "testSwitchoverLongTrxWithoutCommitNoRplCheckNoSemiSync", "testSwitchoverReadOnlyNoRplCheck", "testSwitchoverNoReadOnlyNoRplCheck", "testSwitchover2TimesReplicationOkNoSemiSyncNoRplCheck", "testSwitchover2TimesReplicationOkSemiSyncNoRplCheck", "testSwitchoverBackPreferedMasterNoRplCheckSemiSync", "testSwitchoverAllSlavesStopRplCheckNoSemiSync", "testSwitchoverAllSlavesStopNoSemiSyncNoRplCheck", "testSwitchoverAllSlavesDelayRplCheckNoSemiSync", "testSwitchoverAllSlavesDelayNoRplChecksNoSemiSync", "testFailoverSemisyncAutoRejoinSafeMSMXMS", "testFailoverSemisyncAutoRejoinSafeMSXMSM", "testFailoverSemisyncAutoRejoinSafeMSMXXXRMXMS", "testFailoverSemisyncAutoRejoinSafeMSMXXXRXSMS", "testFailoverSemisyncAutoRejoinUnsafeMSMXMS", "testFailoverSemisyncAutoRejoinUnsafeMSMXXXMXMS", "testFailoverSemisyncAutoRejoinUnsafeMSMXXXXMSM", "testFailoverSemisyncAutoRejoinUnsafeMSXMSM", "testFailoverSemisyncAutoRejoinUnsafeMSXMXXMXMS", "testFailoverSemisyncAutoRejoinUnsafeMSXMXXXMSM", "testFailoverSemisyncAutoRejoinUnsafeMSMXXXRMXMS", "testFailoverSemisyncAutoRejoinUnsafeMSMXXXRXMSM", "testFailoverAssyncAutoRejoinRelay", "testFailoverAssyncAutoRejoinNoGtid", "testFailoverAllSlavesDelayNoRplChecksNoSemiSync", "testFailoverAllSlavesDelayRplChecksNoSemiSync", "testFailoverNoRplChecksNoSemiSync", "testFailoverNoRplChecksNoSemiSyncMasterHeartbeat", "testFailoverNumberFailureLimitReach", "testFailoverTimeNotReach", "testFailoverManual", "testFailoverAssyncAutoRejoinFlashback", "testFailoverSemisyncAutoRejoinFlashback", "testFailoverAssyncAutoRejoinNowrites", "testFailoverSemisyncAutoRejoinMSSXMSXXMSXMSSM", "testFailoverSemisyncAutoRejoinMSSXMSXXMXSMSSM", "testFailoverSemisyncSlavekilledAutoRejoin", "testSlaReplAllSlavesStopNoSemiSync", "testSlaReplAllSlavesDelayNoSemiSync" ], "topology": "master-slave", "version": "", "databasetags": null, "proxytags": null }
Sorry the attachement as failed for some reason, may size or file format json unsupported can you send it to me [email protected] with a dump of the user table so that i can recreate it for test
yop so the user passed to the function is "mrm" not surprise here ! the dump of mysql.user can help to reproduce
There is sql error log plugin in MariaDB that do not exist yet in Percona to track isifreplication-manager send wrong SQL command, other than that you can activate database general log and see the queries sent by replication-manager , i'm intrested in seeing the one SELECT MAX(Select_priv) as Select_priv, MAX(Process_priv) as Process_priv, with argument pass to it ?
3 hosts only report "10.1.1.172:3306 " : Could not get privileges for user rpl on server 10.1.1.172:3306: No replication user defined. Please check the replication user is created with the required privileges
Could it be that you did not grant but modify the underlying tables without flush privileges
used replication-manager-pro-2.0.0_20_g97b7a-1.x86_64.rpm installed
percona5.6.32 gtid mode = off
1master --> 2 slave
master: 10.1.1.173
slave1: 10.1.1.171
slave2: 10.1.1.172
failover-mode = "automatic"
or "Manual"
autorejoin = "false"
or "true "
failover fail:
when i stop mysql service on 10.1.1.173, new master is 10.1.1.171, but
10.1.1.172 mrm state is Maintenance and on it
mysql>"show slave status \G "
showed :
"Master_Host: 10.1.1.173"
" Last_IO_Error: error connecting to master '[email protected]:3306' - retry-time: 5 retries: 19"
when i Manual restart mysql on 10.1.1.173 ,
"Master_Host: 10.1.1.173" change to "Master_Host: 10.1.1.171" and mrm state is slave running.
why?
ps: replication-manager-cli switchover working fine
It's because you are not using GTID or PSEUDO GTID and so the 10.1.1.172 stay under the old master until the 10.1.1.173 old master is restarted , without GTID they is no way to make positional change of an extra slave as the position of replication is unknowed to the new master
which variables can set the auto Rejoin PSEUDO GTID in config.toml? when use auto Rejoin PSEUDO GTID, when old master restart , it will become a standalone master? thx
yes standalone or reattached to cluster if possible via rejoin method. The variable is --autorejoin-slave-positional-hearbeat