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From "Sean Owen (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SPARK-15003) Use ConcurrentHashMap in place of HashMap for NewAccumulator.originals
Date Fri, 29 Apr 2016 14:48:12 GMT

     [ https://issues.apache.org/jira/browse/SPARK-15003?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sean Owen updated SPARK-15003:
------------------------------
    Priority: Minor  (was: Major)

(Why would it improve performance?)

> Use ConcurrentHashMap in place of HashMap for NewAccumulator.originals
> ----------------------------------------------------------------------
>
>                 Key: SPARK-15003
>                 URL: https://issues.apache.org/jira/browse/SPARK-15003
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core
>            Reporter: Ted Yu
>            Priority: Minor
>
> This issue proposes to use ConcurrentHashMap in place of HashMap for NewAccumulator.originals
> This should result in better performance.
> Also removed AccumulatorContext#accumIds



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