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Posted to mapreduce-dev@hadoop.apache.org by "Steve Loughran (Created) (JIRA)" <ji...@apache.org> on 2012/03/15 17:37:38 UTC

[jira] [Created] (MAPREDUCE-4016) CompositeService should clone the Configurations it passes to children

CompositeService should clone the Configurations it passes to children
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                 Key: MAPREDUCE-4016
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4016
             Project: Hadoop Map/Reduce
          Issue Type: Sub-task
          Components: mrv2
    Affects Versions: 0.23.1, 0.24.0
            Reporter: Steve Loughran


{{CompositeService.init(Configuration)}} saves the configuration passed in *and* passes the same instance down to all managed services. This means a change in the configuration of one child could propagate to all the others.

Unless this is desired, the configuration should be cloned for each child.

Fast and easy fix; tests can be added to those coming in MAPREDUCE-4014

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