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Posted to dev@uima.apache.org by "Jim Challenger (JIRA)" <de...@uima.apache.org> on 2014/07/09 17:39:04 UTC

[jira] [Created] (UIMA-3939) DUCC RM: share count goes negative

Jim Challenger created UIMA-3939:
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             Summary: DUCC RM: share count goes negative
                 Key: UIMA-3939
                 URL: https://issues.apache.org/jira/browse/UIMA-3939
             Project: UIMA
          Issue Type: Bug
          Components: DUCC
    Affects Versions: 1.0.0-Ducc
            Reporter: Jim Challenger
            Assignee: Jim Challenger
             Fix For: 1.1.0-Ducc


When a node leaves because of ping timeout and then returns, the total share count isn't being adjusted correctly on return.  This causes more subtractions than additions and the share count falls negative, rendering the cluster unschedulable.

Fix is in NodePool.nodearrive(), be sure to alwasys increment shares in all cases of a node returning.



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