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Posted to dev@curator.apache.org by "Anders Wallgren (JIRA)" <ji...@apache.org> on 2013/06/27 01:50:20 UTC

[jira] [Created] (CURATOR-44) LeaderSelector does not assign leader randomly

Anders Wallgren created CURATOR-44:
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             Summary: LeaderSelector does not assign leader randomly
                 Key: CURATOR-44
                 URL: https://issues.apache.org/jira/browse/CURATOR-44
             Project: Apache Curator
          Issue Type: Bug
          Components: Recipes
    Affects Versions: 2.0.1-incubating
            Reporter: Anders Wallgren


The javadoc for LeaderSelector says leadership is assigned randomly but this does not appear to be the case.

A fair mutex is used so it appears that leaders are selected in the order that they attempt to acquire the mutex.

This probably wouldn't be much more than a documentation issue except that it tends to concentrate leaders on one node in the cluster when each node participates in more than one election and tends to start the LeaderSelectors right around the time the node comes up.

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