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https://issues.apache.org/jira/browse/SPARK-4514?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Erik Erlandson updated SPARK-4514:
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Summary: SparkContext localProperties does not inherit property updates
across thread reuse (was: ComplexFutureAction does not preserve job group IDs)
> SparkContext localProperties does not inherit property updates across thread
> reuse
> ----------------------------------------------------------------------------------
>
> Key: SPARK-4514
> URL: https://issues.apache.org/jira/browse/SPARK-4514
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 1.1.0, 1.1.1, 1.2.0
> Reporter: Erik Erlandson
> Assignee: Josh Rosen
> Priority: Critical
>
> The current job group id of a Spark context is stored in the
> {{localProperties}} member value. This data structure is designed to be
> thread local, and its settings are not preserved when {{ComplexFutureAction}}
> instantiates a new {{Future}}.
> One consequence of this is that {{takeAsync()}} does not behave in the same
> way as other async actions, e.g. {{countAsync()}}. For example, this test
> (if copied into StatusTrackerSuite.scala), will fail, because
> {{"my-job-group2"}} is not propagated to the Future which actually
> instantiates the job:
> {code:java}
> test("getJobIdsForGroup() with takeAsync()") {
> sc = new SparkContext("local", "test", new SparkConf(false))
> sc.setJobGroup("my-job-group2", "description")
> sc.statusTracker.getJobIdsForGroup("my-job-group2") should be (Seq.empty)
> val firstJobFuture = sc.parallelize(1 to 1000, 1).takeAsync(1)
> val firstJobId = eventually(timeout(10 seconds)) {
> firstJobFuture.jobIds.head
> }
> eventually(timeout(10 seconds)) {
> sc.statusTracker.getJobIdsForGroup("my-job-group2") should be
> (Seq(firstJobId))
> }
> }
> {code}
> It also impacts current PR for SPARK-1021, which involves additional uses of
> {{ComplexFutureAction}}.
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