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Posted to issues@spark.apache.org by "Lianhui Wang (JIRA)" <ji...@apache.org> on 2014/11/26 10:45:12 UTC

[jira] [Updated] (SPARK-4621) when sort- based shuffle, Cache recently finished shuffle index can reduce indexFile's io

     [ https://issues.apache.org/jira/browse/SPARK-4621?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lianhui Wang updated SPARK-4621:
--------------------------------
    Summary: when sort- based shuffle, Cache recently finished shuffle index can reduce indexFile's io  (was: when sort- based shuffle, Cache recently used shuffle index can reduce indexFile's io)

> when sort- based shuffle, Cache recently finished shuffle index can reduce indexFile's io
> -----------------------------------------------------------------------------------------
>
>                 Key: SPARK-4621
>                 URL: https://issues.apache.org/jira/browse/SPARK-4621
>             Project: Spark
>          Issue Type: Improvement
>          Components: Shuffle
>            Reporter: Lianhui Wang
>            Priority: Critical
>
> in IndexShuffleBlockManager, we can use LRUCache to store recently finished shuffle index and that can reduce indexFile's io.



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