[wildfly-dev] Is there a way to avoid multiple singleton masters

Michael Musgrove mmusgrov at redhat.com
Wed Jun 18 10:12:31 EDT 2014


I'd like to have an option of running our transaction recovery manager 
as an HA singleton. WFLY-68 implies that the master can run at most once 
(even in the presences of network partition) but I don't see how we can 
guarantee that. If I hold the service start in a breakpoint then split 
the network and then allow another master on the other side of the 
partition to become master and then release the breakpoint we will 
briefly have two services running. I know using breakpoints is invalid 
but surely there are timing windows where the same outcome could 
conceivably occur.

Mike

-- 
Michael Musgrove
Transactions Team
e: mmusgrov at redhat.com
t: +44 191 243 0870

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