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Posted to yarn-dev@hadoop.apache.org by "Jonathan Eagles (JIRA)" <ji...@apache.org> on 2015/11/20 07:22:11 UTC

[jira] [Created] (YARN-4376) Memory Timeline Store return incorrect results on fromId paging

Jonathan Eagles created YARN-4376:
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             Summary: Memory Timeline Store return incorrect results on fromId paging
                 Key: YARN-4376
                 URL: https://issues.apache.org/jira/browse/YARN-4376
             Project: Hadoop YARN
          Issue Type: Bug
            Reporter: Jonathan Eagles
            Assignee: Jonathan Eagles


As pointed out correctly by [~jlowe]. 

https://issues.apache.org/jira/browse/TEZ-2628?focusedCommentId=14715831&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14715831

The MemoryTimelineStore cannot page correctly when using fromId. This is due switching between data structures that apparently have different natural sorting. In addition, the approach of creating a new data structure every time from scratch is costly. 



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