MySQL Enterprise Backup User's Guide (Version 4.1.3)

13.2 Working Around Corruption Problems

Sometimes the operating system or the hardware can corrupt a data file page at a location that does not cause a database error, but prevents mysqlbackup from completing:

170225 10:46:18 PCR1    INFO: Re-reading page at offset 0 in D:/temp/5.7_master/test/emp2.ibd
170225 10:46:18 PCR1    INFO: Re-reading page at offset 0 in D:/temp/5.7_master/test/emp2.ibd
...
170225 10:46:26 PCR1 ERROR: Page at offset 0 in D:/temp/5.7_master/test/emp2.ibd seems corrupt!

A corruption problem can have different causes. Here are some suggestions for dealing with it:

IMPORTANT: Do not treat corruption problems as a minor annoyance. Find out what is wrong with the system that causes the corruption—however, such troubleshooting is beyond the scope of this manual.