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MDEV-10161: wsrep_sync_wait not enabled when set to 1 in config file

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Since wsrep_sync_wait & wsrep_causal_reads variables are related,
they are always kept in sync whenever one of them changes.
Same is tried on server start, where wsrep_sync_wait get updated
based on wsrep_causal_reads' value. But, since wsrep_causal_reads
is OFF by default, wsrep_sync_wait's value gets modified and loses
its WSREP_SYNC_WAIT_BEFORE_READ bit.

Fixed by syncing wsrep_sync_wait & wsrep_causal_reads values
individually on server start in mysqld_get_one_option() based
on command line arguments used.
This commit is contained in:
Nirbhay Choubey
2016-06-27 18:30:07 -04:00
parent aa9c8f2a0d
commit 7ff44b1a83
7 changed files with 33 additions and 5 deletions
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9
mysql-test/suite/galera/r/galera_var_sync_wait.result
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@@ -1,3 +1,12 @@
#
# MDEV-10161: wsrep_sync_wait not enabled when set to 1 in config file
#
SELECT @@global.wsrep_sync_wait;
@@global.wsrep_sync_wait
7
SELECT @@global.wsrep_causal_reads;
@@global.wsrep_causal_reads
1
CREATE TABLE t1 (f1 INT PRIMARY KEY) Engine=InnoDB;
SET GLOBAL wsrep_sync_wait = 1;
SHOW TABLES LIKE '%t1';