MySQL patches by Codership

  1. Series 5.5
  2. Bug #1277053
  3. Comment #9

Comment 9 for bug 1277053

Revision history for this message
Yan Zhang (yan.zhang) wrote :

add a session variable 'wsrep_sync_wait' to control causality check. And old session variable 'wsrep_causal_reads' is deprecated but is kept for backward compatiblity.

```
"wsrep_causal_reads", "(DEPRECATED) setting this variable is equivalent to setting wsrep_sync_wait READ flag",
"wsrep_sync_wait", "Ensure \"synchronous\" read view before executing an operation of the type specified by bitmask: 1 - READ(includes SELECT, SHOW and BEGIN/START TRANSACTION); 2 - UPDATE and DELETE; 4 - INSERT and REPLACE"
```

fixed in
http://bazaar.launchpad.net/~codership/codership-mysql/wsrep-5.5/revision/4014
http://bazaar.launchpad.net/~codership/codership-mysql/5.6/revision/4123