[MDEV-7476] Allow SELECT to succeed even when node is not ready Created: 2015-01-18  Updated: 2016-11-04  Resolved: 2015-01-23

Status: Closed
Project: MariaDB Server
Component/s: wsrep
Fix Version/s: 5.5.42-galera, 10.0.16-galera, 10.1.3

Type: Task Priority: Major
Reporter: Nirbhay Choubey (Inactive) Assignee: Nirbhay Choubey (Inactive)
Resolution: Fixed Votes: 0
Labels: galera

Issue Links:
Relates
relates to MDEV-11239 Allow wsrep_dirty_reads to be set glo... Closed

 Description   

Originally logged here : https://github.com/codership/mysql-wsrep/issues/36

The idea is to introduce a new session variable "wsrep_dirty_reads" to enable SELECT to succeed even when the node is not ready and rejecting commands with ER_UNKNOWN_COMMAND.



 Comments   
Comment by Nirbhay Choubey (Inactive) [ 2015-01-18 ]

http://lists.askmonty.org/pipermail/commits/2015-January/007299.html

Comment by Sergei Golubchik [ 2015-01-19 ]

Is this your solution for "not ready" failures in mysql-test?

Comment by Nirbhay Choubey (Inactive) [ 2015-01-19 ]

No, its a separate feature.

Comment by Jan Lindström (Inactive) [ 2015-01-19 ]

Ok to push.

Comment by Nirbhay Choubey (Inactive) [ 2015-01-23 ]

Patch:
https://github.com/MariaDB/server/commit/0105bf349a44f33fff3410af1db31d4c6116f14a

KB entry:
https://mariadb.com/kb/en/mariadb/documentation/managing-mariadb/replication/galera/galera-cluster-system-variables/#wsrep_dirty_reads

Comment by Nirbhay Choubey (Inactive) [ 2015-01-28 ]

http://bazaar.launchpad.net/~maria-captains/maria/maria-5.5-galera/revision/3559
http://bazaar.launchpad.net/~maria-captains/maria/maria-10.0-galera/revision/3921

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