[MDEV-4395] Documentation mentions 2-step deadlock detection Created: 2013-04-13  Updated: 2013-07-08  Resolved: 2013-07-08

Status: Closed
Project: MariaDB Server
Component/s: None
Affects Version/s: 5.5.30
Fix Version/s: None

Type: Bug Priority: Minor
Reporter: Sheeri Cabral Assignee: Daniel Bartholomew
Resolution: Fixed Votes: 0
Labels: deadlock, documentation


 Description   

https://kb.askmonty.org/en/mysqld-options-full-list/ - MariaDB options page that shows the 2-step deadlock variables:

deadlock-search-depth-short is a number for the short search depth for the two-step deadlock detection, deadlock-timeout-long is a number of the long timeout for the two-step deadlock detection, in microseconds, and the deadlock-timeout-short is a number of the long timeout for the two-step deadlock detection, in microseconds

These 4 variables are not used in InnoDB at all, according to serg. There's no documentation on how they're used in Aria. The docs should be more verbose about these options, how the 2-step detection should work, and where it works and doesn't.



 Comments   
Comment by Sergei Golubchik [ 2013-06-17 ]

I've added a note that these variables only apply to the Aria engine

Comment by Ian Gilfillan [ 2013-06-23 ]

Documented now at https://kb.askmonty.org/en/aria-two-step-deadlock-detection/

Comment by Daniel Bartholomew [ 2013-07-08 ]

documentation fixed, so closing

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