I am trying to setup Master-Master MySQL replication in MySQL 8.
It was working fine until recently. I am able to connect as replication user from slave host to master; however, when I start replication I get following error code in log:
Here is the mysql error when I
show slave status\G:
Slave_IO_State: Connecting to master Master_Host: <server_ip> Master_User: ruser Master_Port: 3306 Connect_Retry: 60 Master_Log_File: mysql-bin.000030 Read_Master_Log_Pos: 155 Relay_Log_File: mysql-relay-bin.000001 Relay_Log_Pos: 4 Relay_Master_Log_File: mysql-bin.000030 Slave_IO_Running: Connecting Slave_SQL_Running: Yes Replicate_Do_DB: Replicate_Ignore_DB: Replicate_Do_Table: Replicate_Ignore_Table: Replicate_Wild_Do_Table: Replicate_Wild_Ignore_Table: Last_Errno: 0 Last_Error: Skip_Counter: 0 Exec_Master_Log_Pos: 155 Relay_Log_Space: 155 Until_Condition: None Until_Log_File: Until_Log_Pos: 0 Master_SSL_Allowed: No Master_SSL_CA_File: Master_SSL_CA_Path: Master_SSL_Cert: Master_SSL_Cipher: Master_SSL_Key: Seconds_Behind_Master: NULL Master_SSL_Verify_Server_Cert: No Last_IO_Errno: 3159 Last_IO_Error: error connecting to master 'ruser@<server_ip>:3306' - retry-time: 60 retries: 13 Last_SQL_Errno: 0 Last_SQL_Error: Replicate_Ignore_Server_Ids: Master_Server_Id: 0 Master_UUID: Master_Info_File: mysql.slave_master_info SQL_Delay: 0 SQL_Remaining_Delay: NULL Slave_SQL_Running_State: Slave has read all relay log; waiting for more updates Master_Retry_Count: 86400 Master_Bind: Last_IO_Error_Timestamp: 190126 20:50:58 Last_SQL_Error_Timestamp: Master_SSL_Crl: Master_SSL_Crlpath: Retrieved_Gtid_Set: Executed_Gtid_Set: Auto_Position: 0 Replicate_Rewrite_DB: Channel_Name: Master_TLS_Version: Master_public_key_path: Get_master_public_key: 0
It was successfully connecting before and replication was happening. Suddenly when I checked status a week later, I saw the following error:
Last_IO_Error: error connecting to master 'ruser@<server_ip>:3306' - retry-time: 60
I tried doing setup with a new user. I get same error now. This new user is never able to connect. What am I missing?