I have been tasked to set replication up on a slave host. The master database is a "data store" where tables are dropped, recreated, and reloaded on a daily basis.
My initial setup of the slave host worked fine by replication was always days behind the master. After talking to the users of the "data store", I realized that not all of the databases and not all of the tables need to be replicated over. So this is what I did
CI-DB002-PRD [root@localhost] ON (none)> STOP SLAVE\G CI-DB002-PRD [root@localhost] ON (none)> CHANGE REPLICATION FILTER REPLICATE_DO_DB = (bidw,cf2_fact,ct_fact,ez_fact,gt_fact,sfdc,soa_fact,tesla_fact,tmc_fact); CI-DB002-PRD [root@localhost] ON (none)> CHANGE REPLICATION FILTER REPLICATE_WILD_DO_TABLE = ('bidw.domo%', 'bidw.consolidated%', 'bidw.cf2%', 'bidw.tesla%'); CI-DB002-PRD [root@localhost] ON (none)> START SLAVE\G
Very quickly, replication caught up and now, the slave is 3-7 seconds behind the master.
But replication is not touching the databases I want to be replicated. Even though data changes on master every 10 minutes for the schemas I list above. I did several validation queries and results now differ. When I check the status of my slave, nothing stands out
CI-DB002-PRD [root@localhost] ON (none)> show slave status\G *************************** 1. row *************************** Slave_IO_State: Queueing master event to the relay log Master_Host: 10.239.0.34 Master_User: ci02replicadb Master_Port: 3306 Connect_Retry: 60 Master_Log_File: binary-log.009871 Read_Master_Log_Pos: 14678596 Relay_Log_File: ci-db002-prd-relay-bin.007914 Relay_Log_Pos: 814824 Relay_Master_Log_File: binary-log.009871 Slave_IO_Running: Yes Slave_SQL_Running: Yes Replicate_Do_DB: bidw,cf2_fact,ct_fact,ez_fact,gt_fact,sfdc,soa_fact,tesla_fact,tmc_fact,staging,phoenix,data_science Replicate_Ignore_DB: Replicate_Do_Table: Replicate_Ignore_Table: Replicate_Wild_Do_Table: bidw.domo%,bidw.consolidated%,bidw.cf2%,bidw.tesla%,bidw.ez%,bidw.ct%,bidw.gt%,bidw.tmc%,bidw.did%,bidw.Shortened%,bidw.other_revenue%,bidw.revenue%,bidw.advanced_cohort% Replicate_Wild_Ignore_Table: Last_Errno: 0 Last_Error: Skip_Counter: 0 Exec_Master_Log_Pos: 814626 Relay_Log_Space: 14679056 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: 22 Master_SSL_Verify_Server_Cert: No Last_IO_Errno: 0 Last_IO_Error: Last_SQL_Errno: 0 Last_SQL_Error: Replicate_Ignore_Server_Ids: Master_Server_Id: 1 Master_UUID: a485ab14-aa57-11ea-bef5-42010aef0022 Master_Info_File: /data/mysql/master.info SQL_Delay: 0 SQL_Remaining_Delay: NULL Slave_SQL_Running_State: Reading event from the relay log Master_Retry_Count: 86400 Master_Bind: Last_IO_Error_Timestamp: 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: 1 row in set (0.01 sec)
For "Replicate_Wild_Do_Table", I replicate only the tables listed there because the entire "bidw" database is lousy with junk tables.
What am I missing here? Am I not allowed to use both filters at the same time? I am on version 5.7.31.