Our server had disk space problems. As a result, replication's IO Threads fails to start.
Here are the errors in mysql error log:
[Note] Slave I/O thread: connected to master 'user@host:3307',replication started in log 'mysql-bin.000030' at position 196820914
[ERROR] Slave I/O: Replication event checksum verification failed while reading from network. Error_code: 1743
[ERROR] Slave I/O: Relay log write failure: could not queue event from master, Error_code: 1595
How do I fix the problem?