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MySQL backup -- common errors in xtrabackup backup
2022-07-06 12:58:00 【wx5caecf2ed0645】
1、DDL Operation and Xtrabackup Backup conflict
When MySQL Use xrabckup When doing a backup , If you execute DDL Modify the table , It can lead to xrabckup Backup failed .
Errors are similar to :
InnoDB: Last flushed lsn: 3375345258517 load_index lsn 3379255303757
InnoDB: An optimized (without redo logging) DDLoperation has been performed. All modified pages may not have been flushed to the disk yet.
PXB will not be able take a consistent backup. Retry the backup operation
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2、 Poor disk performance leads to xtrabckup Backup failed
Innodb Logs are generated much faster than Xtrabackup The speed of replication , part Innodb Log truncated , Causes the backup to fail .
Errors are similar to :
xtrabackup: error: log block numbers mismatch:
xtrabackup: error: expected log block no. 201901064, but got no. 208192508 from the log file.
xtrabackup: error: it looks like InnoDB log has wrapped around before xtrabackup could process all records due to either log copying being too slow, or log files being too small.
xtrabackup: Error: xtrabackup_copy_logfile() failed.
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