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MXS-1335: Disable root_node_as_master by default

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Enabling the option hinders the use of maintenance mode with the root
master node in most use-cases.

This behavior occurs due to the fact that the maintenance mode causes a
server to be treted as if it was down. The Galera monitor waits for the
cluster to reorganize before assigning a new master node. This is correct
(but very unexpected) behavior for single instance use-cases.
This commit is contained in:
Markus Mäkelä
2017-07-28 11:52:49 +03:00
parent 6d9500d898
commit fcabda15a8
3 changed files with 11 additions and 3 deletions
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2
server/modules/monitor/galeramon/galeramon.c
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@ -93,7 +93,7 @@ MXS_MODULE* MXS_CREATE_MODULE()
{"disable_master_failback", MXS_MODULE_PARAM_BOOL, "false"},
{"available_when_donor", MXS_MODULE_PARAM_BOOL, "false"},
{"disable_master_role_setting", MXS_MODULE_PARAM_BOOL, "false"},
{"root_node_as_master", MXS_MODULE_PARAM_BOOL, "true"},
{"root_node_as_master", MXS_MODULE_PARAM_BOOL, "false"},
{"use_priority", MXS_MODULE_PARAM_BOOL, "false"},
{
"script",