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Posted to issues@spark.apache.org by "Patrick Wendell (JIRA)" <ji...@apache.org> on 2015/06/17 21:45:00 UTC
[jira] [Updated] (SPARK-5915) Spillable should check every N bytes
rather than every 32 elements
[ https://issues.apache.org/jira/browse/SPARK-5915?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Patrick Wendell updated SPARK-5915:
-----------------------------------
Target Version/s: (was: 1.4.0)
> Spillable should check every N bytes rather than every 32 elements
> ------------------------------------------------------------------
>
> Key: SPARK-5915
> URL: https://issues.apache.org/jira/browse/SPARK-5915
> Project: Spark
> Issue Type: Improvement
> Components: Shuffle, Spark Core
> Affects Versions: 1.0.0
> Reporter: Mingyu Kim
>
> Spillable currently checks for spill every 32 elements. However, this puts it at a risk of OOM if each element is large enough. A better alternative is to check every N bytes accumulated.
> N should be decided to a reasonable number via proper testing.
> This is a follow-up of SPARK-4808, and was discussed originally in https://github.com/apache/spark/pull/4420.
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