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Posted to issues@spark.apache.org by "Hyukjin Kwon (JIRA)" <ji...@apache.org> on 2019/05/21 04:14:23 UTC
[jira] [Resolved] (SPARK-3528) Reading data from file:/// should be
called NODE_LOCAL not PROCESS_LOCAL
[ https://issues.apache.org/jira/browse/SPARK-3528?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Hyukjin Kwon resolved SPARK-3528.
---------------------------------
Resolution: Incomplete
> Reading data from file:/// should be called NODE_LOCAL not PROCESS_LOCAL
> ------------------------------------------------------------------------
>
> Key: SPARK-3528
> URL: https://issues.apache.org/jira/browse/SPARK-3528
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 1.1.0
> Reporter: Andrew Ash
> Priority: Major
> Labels: bulk-closed
>
> Note that reading from {{file:///.../pom.xml}} is called a PROCESS_LOCAL task
> {noformat}
> spark> sc.textFile("pom.xml").count
> ...
> 14/09/15 00:59:13 INFO TaskSetManager: Starting task 0.0 in stage 0.0 (TID 0, localhost, PROCESS_LOCAL, 1191 bytes)
> 14/09/15 00:59:13 INFO TaskSetManager: Starting task 1.0 in stage 0.0 (TID 1, localhost, PROCESS_LOCAL, 1191 bytes)
> 14/09/15 00:59:13 INFO Executor: Running task 0.0 in stage 0.0 (TID 0)
> 14/09/15 00:59:13 INFO Executor: Running task 1.0 in stage 0.0 (TID 1)
> 14/09/15 00:59:13 INFO HadoopRDD: Input split: file:/Users/aash/git/spark/pom.xml:20862+20863
> 14/09/15 00:59:13 INFO HadoopRDD: Input split: file:/Users/aash/git/spark/pom.xml:0+20862
> {noformat}
> There is an outstanding TODO in {{HadoopRDD.scala}} that may be related:
> {noformat}
> override def getPreferredLocations(split: Partition): Seq[String] = {
> // TODO: Filtering out "localhost" in case of file:// URLs
> val hadoopSplit = split.asInstanceOf[HadoopPartition]
> hadoopSplit.inputSplit.value.getLocations.filter(_ != "localhost")
> }
> {noformat}
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