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From "Alexei Scherbakov (JIRA)" <j...@apache.org>
Subject [jira] [Created] (IGNITE-3905) Optimize RendezvousAffinityFunction
Date Thu, 15 Sep 2016 08:25:21 GMT
Alexei Scherbakov created IGNITE-3905:
-----------------------------------------

             Summary: Optimize RendezvousAffinityFunction
                 Key: IGNITE-3905
                 URL: https://issues.apache.org/jira/browse/IGNITE-3905
             Project: Ignite
          Issue Type: Bug
          Components: cache, community, general
    Affects Versions: 1.6
            Reporter: Alexei Scherbakov
            Priority: Critical
             Fix For: 1.8


Currently RendezvousAffinityFunction.assignPartition generates a lot of garbage if called
very often, on example in case of rebalancing a lot of caches.

This causes excessive pressure on GC, which is not always fast enough to clear memory, producing
long GC pauses leading to node segmentation.

We should cache calculation of nodeHashBytes in node attribute or resort to more efficient
node hash calculation.





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