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Ritheesh Vedire authored
Performance schema tables are local to a server and they should not be allowed to be executed by the slave from the relay log. From 5.6.10, P_S events are not written into the binary log. But prior to that, from mysql 5.5 onwards, P_S events are written to the binary log by master. The following are problematic scenarios: 1. Master 5.5 -> Slave 5.5 ======================== A) RBR: Slave crashes B) SBR: P_S statements are replicated. 2.Master 5.5 -> Slave 5.6 ======================== A) RBR: SQL thd generates error B) SBR : P_S statements are replicated 3. 5.5 binlog executed on a server 5.5 using mysqlbinlog|mysql ================================================================= A) RBR: Server crash (because of BINLOG'... statement) B) SBR: P_S statements are executed 4. 5.5 binlog executed on server 5.6 using mysqlbinlog|mysql ================================================================ A) RBR: SQL error (because of BINLOG'... statement) B) SBR: P_S statements are executed. The generalized behaviour should be: a) Slave SQL thread should certainly ignore P_S events read from the relay log. b) mysqlbinlog|mysql should replay the binlog succesfully.
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