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Posted to issues@spark.apache.org by "Sean Owen (JIRA)" <ji...@apache.org> on 2016/11/25 10:04:58 UTC
[jira] [Resolved] (SPARK-18548) OnlineLDAOptimizer reads the same
broadcast data after deletion
[ https://issues.apache.org/jira/browse/SPARK-18548?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sean Owen resolved SPARK-18548.
-------------------------------
Resolution: Duplicate
> OnlineLDAOptimizer reads the same broadcast data after deletion
> ---------------------------------------------------------------
>
> Key: SPARK-18548
> URL: https://issues.apache.org/jira/browse/SPARK-18548
> Project: Spark
> Issue Type: Improvement
> Components: MLlib
> Affects Versions: 1.6.1
> Reporter: Xiaoye Sun
> Priority: Trivial
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> In submitMiniBatch() called by OnlineLDAOptimizer, broadcast variable expElogbeta is deleted before its use in the second time, which causes the executor reads the same large broadcast data twice. I suggest to move the broadcast data deletion (expElogbetaBc.unpersist()) later.
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