MySQL sys 1.3.0 released – The Facepalm Release

With a last minute change to the host_summary_by_stages view for the 1.2.0 release of the sys schema, I managed to break the views without noticing it.

So, in the shortest release cycle for the sys schema ever (less than 24 hours), 1.3.0 has now been released.

This comes with a bonus though, there was also a new view that was contributed by Jesper Wisborg Krogh waiting to be merged as well, so I’ve added that to the 1.3.0 version (hence the 1.3.0 instead of 1.2.1).

This is the innodb_lock_waits view, which shows all sessions that are waiting for a lock within InnoDB, as well as the details of who is blocking them, here’s an example output:

mysql> SELECT * FROM innodb_lock_waits\G
*************************** 1. row ***************************
     waiting_trx_id: 805505
     waiting_thread: 78
      waiting_query: UPDATE t1 SET val = 'c2' WHERE id = 3
    waiting_lock_id: 805505:132:3:28
  waiting_lock_mode: X
  waiting_lock_type: RECORD
 waiting_lock_table: `db1`.`t1`
 waiting_lock_index: PRIMARY
    blocking_trx_id: 805504
    blocking_thread: 77
     blocking_query: UPDATE t1 SET val = CONCAT('c1', SLEEP(10)) WHERE id = 3
   blocking_lock_id: 805504:132:3:28
 blocking_lock_mode: X
 blocking_lock_type: RECORD
blocking_lock_table: `db1`.`t1`
blocking_lock_index: PRIMARY

Sorry for the breakage, but enjoy the new view!


2 thoughts on “MySQL sys 1.3.0 released – The Facepalm Release”

  1. Just wanted to let you know that the version number is still set to 1.2 in before_setup.sql, so the file that is generated by is named sys_1.2.0_56_inline.sql (I’m using MySQL 5.6) instead of sys_1.3.0_56_inline.sql.

    Thanks so much for providing these views!

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