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How does binary logging work in MySQL server?
When binary logging is enabled on the server (with the log_bin system variable set to ON), a binary log cache is allocated for each client if the server supports any transactional storage engines. If the data for the transaction exceeds the space in the memory buffer, the excess data is stored in a temporary file.
What is the default value for binary logging?
The value must be (or else gets rounded down to) a multiple of 256. The default is 8192 bytes. Specifies the base name to use for binary log files. With binary logging enabled, the server logs all statements that change data to the binary log, which is used for backup and replication.
How to change relative path of binary log file?
When the server reads an entry from the binary log index file, which tracks the binary log files that have been used, it checks whether the entry contains a relative path. If it does, the relative part of the path is replaced with the absolute path set using the –log-bin option.
When to use statement based logging in MySQL?
For example, DDL statements such as CREATE TABLE and ALTER TABLE are always logged as statements, without regard to the logging format in effect, so the following statement-based rules for –binlog-do-db always apply in determining whether or not the statement is logged. Statement-based logging.
Where do I find the binary log file base name?
The binary log file base name and any specified path are available as the log_bin_basename system variable. In MySQL 5.7, a server ID had to be specified when binary logging was enabled, or the server would not start. In MySQL 8.0, the server_id system variable is set to 1 by default.
What to do when binary logging is disabled?
When binary logging is disabled, the log_bin system variable is set to OFF. The name for the binary log index file, which contains the names of the binary log files.