[infinispan-issues] [JBoss JIRA] (ISPN-2655) Make HotRod client always read from the main data owner

Mircea Markus (JIRA) jira-events at lists.jboss.org
Tue Dec 18 14:17:08 EST 2012


Mircea Markus created ISPN-2655:
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             Summary: Make HotRod client always read from the main data owner
                 Key: ISPN-2655
                 URL: https://issues.jboss.org/browse/ISPN-2655
             Project: Infinispan
          Issue Type: Feature Request
    Affects Versions: 5.2.0.Beta6
            Reporter: Mircea Markus
            Assignee: Tristan Tarrant
             Fix For: 5.2.0.CR1


ISPN-2643 made the java Hot Rod client always write to the main owner. ATM the client picks a random owner for reading though. This read-load-balancing doesn't really help, as assuming the data is evenly spread, the amount of reads would be distributed uniformly across the cluster. OTOH forcing the client to always read from the main owner would guarantee red-consistency for *async* replicated caches. Even so read consistency might still be a problem when a node crashed, but still these is a much stronger guarantee and makes async replication usable in many more scenarios.

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