Comments (1)
MHA does not handle a master as dead, if the master is running, even though the
master performance degrades. This is to prevent repeating failover and false
alarm. For example, if there are bugs in application logic, failover won't fix
the problem so starting failover does not make any sense.
If you want MHA to start promotion, shutdown the master instance (by an
external script or manually). The script should be smart enough that it
understands failover fixes the problem (i.e. hardware problem on the master
server).
Original comment by [email protected]
on 21 Nov 2014 at 9:10
from mysql-master-ha.
Related Issues (20)
- Manual switching | alive Old master does't become new slave HOT 3
- MHA automatic failover stop when I shutdown Master machine
- If Active Master goes Down, Slave running MHA manager can become Master?. HOT 2
- MHA IP failover / firewall issues
- got the error during the failover test "Applying all logs succeeded. But starting slave failed" HOT 3
- masterha_check_repl skips all slave checks on MySQL 5.6 with GTID enabled HOT 3
- Do mysql master failover only when there are more than one slaves HOT 3
- Maunal purge_relay_logs crash my replication HOT 2
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- masterha_manager can not start on 3306 ,but 3313 ok
- Does mysql-master-ha work if I already have traditional mysql replication running? HOT 1
- masterha_check_repl says ssh config failed, BUT masterha_check_ssh was okay HOT 1
- alert-only mode instead of failover
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- Documentation not available HOT 1
- masterha_check_repl crashing HOT 2
- MHA Scalability HOT 1
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from mysql-master-ha.