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Posted to dev@activemq.apache.org by "Philippe Cuvecle (JIRA)" <ji...@apache.org> on 2014/06/04 15:10:01 UTC
[jira] [Created] (AMQ-5208) ActiveMQ restart when Locker looses
lock weakness
Philippe Cuvecle created AMQ-5208:
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Summary: ActiveMQ restart when Locker looses lock weakness
Key: AMQ-5208
URL: https://issues.apache.org/jira/browse/AMQ-5208
Project: ActiveMQ
Issue Type: Improvement
Affects Versions: 5.9.1
Reporter: Philippe Cuvecle
The feature implemented in AMQ-4526 does not help if the restart does not succeed
Imagine the following scenario : 2 AMQ configured with jdbcPersistenceAdapter
- At the beginning AMQ1 is master, AMQ2 is slave
- database targeted by jdbcPersistenceAdapter shutsdown or connectivity is lost
- AMQ1 restarts but because DB is not back during restart it dies
- AMQ2 tries to get the lock every 10s and stay alive
- DB is back, AMQ2 becomes master
- DB shutdown again, AMQ2 restart and dies for the same reason AMQ1 died
-> We don't have any AMQ up
When a lock is down why don't you just deny AMQ connections and retry to become master on a regular basis ?
More generally how can we have a master/slave high availability configuration that can tolerate long storage unavailability ?
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