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From tison1 <...@git.apache.org>
Subject [GitHub] flink issue #6353: [FLINK-9875] Add concurrent creation of execution job ver...
Date Thu, 19 Jul 2018 05:06:23 GMT
Github user tison1 commented on the issue:

    https://github.com/apache/flink/pull/6353
  
    Fix unstable case, the problem is code below, that may assign `constraints` to a long
array and then to a short array, which cause out of index exception. to solve it we could
init `constraints` in object construct.
    
    https://github.com/apache/flink/blob/056486a1b81e9648a6d3dc795e7e2c6976f8388c/flink-runtime/src/main/java/org/apache/flink/runtime/jobmanager/scheduler/CoLocationGroup.java#L87-L91


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