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Posted to issues@spark.apache.org by "yuhao yang (JIRA)" <ji...@apache.org> on 2015/03/10 01:53:38 UTC
[jira] [Updated] (SPARK-6177) Add note in LDA example to remind
possible coalesce
[ https://issues.apache.org/jira/browse/SPARK-6177?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
yuhao yang updated SPARK-6177:
------------------------------
Summary: Add note in LDA example to remind possible coalesce (was: Add note for )
> Add note in LDA example to remind possible coalesce
> ----------------------------------------------------
>
> Key: SPARK-6177
> URL: https://issues.apache.org/jira/browse/SPARK-6177
> Project: Spark
> Issue Type: Improvement
> Components: Examples, MLlib
> Affects Versions: 1.2.1
> Reporter: yuhao yang
> Priority: Minor
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> Add comment to introduce coalesce to LDA example to avoid the possible massive partitions from sc.textFile.
> sc.textFile will create RDD with one partition for each file, and the possible massive partitions downgrades LDA performance.
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