In the recent time we have found that the bin log is getting corrupted, 20% binlog files were having errors, which couldn't even pass the sanity check by mysqlbinlog -u user -p mysql-bin.000021 | head -5.
Consider me new to MySQL, Is there a way which can reduce binlog corruption or some parameter which is safe for binlog/replication. What is the best way for replication, Master-Master or Master-Slave? Is there a way to get auto backup weekly or monthly.
Edited as per request
[root@host mysql]# mysqlbinlog --verbose --base64-output=decode-rows mysql-bin.000089 | tail -n 5 | head -n 1
ERROR: Error in Log_event::read_log_event(): 'Sanity check failed', data_len: 541414465, event_type: 116
ERROR: Could not read entry at offset 184469: Error in log format or read error.
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[root@host mysql]# mysqlbinlog --verbose --base64-output=decode-rows mysql-bin.000086 | tail -n 5 | head -n 1
ERROR: Error in Log_event::read_log_event(): 'Event too big', data_len: -736930139, event_type: 71
ERROR: Could not read entry at offset 668651590: Error in log format or read error.
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