2 Commits

Author	SHA1	Message	Date
Marko Mäkelä	d73a898d64	MDEV-16045: Allocate log_sys statically ... There is only one redo log subsystem in InnoDB. Allocate the object statically, to avoid unnecessary dereferencing of the pointer. log_t::create(): Renamed from log_sys_init(). log_t::close(): Renamed from log_shutdown(). log_t::checkpoint_buf_ptr: Remove. Allocate log_t::checkpoint_buf statically.	2018-04-29 09:46:24 +03:00
Jan Lindström	403f6e9607	MDEV-11705: InnoDB: Failing assertion: (&log_sys->mutex)->is_owned() if server started with innodb-scrub-log ... Problem was that log_scrub function did not take required log_sys mutex. Background: Unused space in log blocks are padded with MLOG_DUMMY_RECORD if innodb-scrub-log is enabled. As log files are written on circular fashion old log blocks can be reused later for new redo-log entries. Scrubbing pads unused space in log blocks to avoid visibility of the possible old redo-log contents. log_scrub(): Take log_sys mutex log_pad_current_log_block(): Increase srv_stats.n_log_scrubs if padding is done. srv0srv.cc: Set srv_stats.n_log_scrubs to export vars innodb_scrub_log ha_innodb.cc: Export innodb_scrub_log to global status.	2017-01-03 11:22:49 +02:00