February 2018
Intermediate to advanced
510 pages
16h 10m
English
Content preview from MySQL 8 Administrator???s Guide
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The DDL log
As name implies, this log file is used to record all the DDL statement execution related details. MySQL 8 uses this log file to recover from crashes that occur during the metadata operation execution. Let's take one example to understand the scenarios:
- Drop table t1, t2: We must be sure that both the t1 and t2 tables are dropped
When we execute any DDL statement, a record of these operations is written into the ddl_log.log file under the MySQL 8 data directory. This file is a binary file and not in human readable format. The user is not allowed to update the contents of this log file. Metadata statements recording is not required in normal execution of MySQL server; enable it only if it is required.
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