Miroslav Novak created ARTEMIS-679: -------------------------------------- Summary: Activate most up to date server from master-slave(live-backup) pair Key: ARTEMIS-679 URL: https://issues.apache.org/jira/browse/ARTEMIS-679 Project: ActiveMQ Artemis Issue Type: New Feature Components: Broker Affects Versions: 1.3.0 Reporter: Miroslav Novak
if there are 2 live/backup pairs with replicated journal in colocated topology Artemis1(L1/B2) <-> Artemis2(L2/B1) then there is no easy way to start them if they're all shutdown. Problem is that there is no way how to start the servers with most up-to-date journal. If administrator shutdown servers in sequence Artemis1 and then Artemis 2. Then Artemis 2 has the most up-to-date journals because backup B1 on server2 activated. Then If administrator decides to start Artemis2 then live L2 activates and backup B1 waits for live L1 in Artemis 1 to start. But once L1 starts then L1 replicates its own "old" journal to B1. So L1 started with bad old journal. I would suggest that L1 and B1 compares theirs journals and figure out which one is more up-to-date. Then server with more up-to-date journal activates. In scenario described above it would be backup B1 which will activate first. Live L1 will synchronize its own journal from B1 and then failback happens. -- This message was sent by Atlassian JIRA (v6.3.4#6332)