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MXS-2325 Only enable events that were enabled on the master

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The monitor now continuously updates a list of enabled server events. When
promoting a new master in failover/switchover, only events that were enabled
on the previous master are enabled on the new. This avoids enabling events
that may have been disabled on the master yet stayed in the SLAVESIDE_DISABLED-
state on the slave.

In the case of reset-replication command, events on the new master are only
enabled if the monitor had a master when the command was launched. Otherwise
all events remain disabled.
This commit is contained in:
Esa Korhonen
2019-02-27 13:24:37 +02:00
parent 8d6932abb2
commit 4fd4b726a1
7 changed files with 147 additions and 88 deletions
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2
server/modules/monitor/mariadbmon/test/test_cycle_find.cc
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@ -162,7 +162,7 @@ void MariaDBMonitor::Test::init_servers(int count)
MXS_MONITORED_SERVER* mon_server = new MXS_MONITORED_SERVER; // Contents mostly undefined
mon_server->server = base_server;
MariaDBServer* mariadb_server = new MariaDBServer(mon_server, i - 1, m_use_hostnames);
MariaDBServer* mariadb_server = new MariaDBServer(mon_server, i - 1, m_use_hostnames, false);
if (m_use_hostnames)
{