Could not parse relay log event entry.

If a slave show the below error then

1) If the slaves relay-log is corrupted, the run the change master to get the slave in sync with master.

2) we have to import a fresh dump from master to get the slave in sync with master if the master’s binlog is corrupted.

Show slave status :

mysql> show slave status\G
*************************** 1. row ***************************
Master_Host: 10.x.x.39
Master_User: replicate
Master_Port: 3307
Connect_retry: 60
Master_Log_File: db-master.077
Read_Master_Log_Pos: 7400184
Relay_Log_File: db-slave-relay-bin.010
Relay_Log_Pos: 150588765
Relay_Master_Log_File: db-master.076
Slave_IO_Running: Yes
Slave_SQL_Running: No
Replicate_do_db: broadbandnew,archive
Replicate_ignore_db:
Last_errno: 0
Last_error: Could not parse relay log event entry. The possible reasons are: the master’s binary log is corrupted (you can check this by running ‘mysqlbinlog’ on the binary log), the slave’s relay log is corrupted (you can check this by running ‘mysqlbinlog’ on the relay log), a network problem, or a bug in the master’s or slave’s MySQL code. If you want to check the master’s binary log or slave’s relay log, you will be able to know their names by issuing ‘SHOW SLAVE STATUS’ on this slave.
Skip_counter: 0
Exec_master_log_pos: 150588671
Relay_log_space: 157989718
1 row in set (0.00 sec)