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https://issues.apache.org/jira/browse/MAPREDUCE-1995?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Scott Chen updated MAPREDUCE-1995:
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Description:
Here is the related code path.
{code}
JobInProgress.getTaskInProgress() (Locks JobInProgress)
LocalityLevel.fromTask()
FairScheduler.updateLastMapLocalityLevel()
FairScheduler.assignTasks()
JobTracker.heartbeat() (Locks JobTracker)
{code}
was:
{code}
JobInProgress.getTaskInProgress() (Locks JobInProgress)
LocalityLevel.fromTask()
FairScheduler.updateLastMapLocalityLevel()
FairScheduler.assignTasks()
JobTracker.heartbeat() (Locks JobTracker)
{code}
> FairScheduler can wait for JobInProgress lock while holding JobTracker lock
> ---------------------------------------------------------------------------
>
> Key: MAPREDUCE-1995
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1995
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: contrib/fair-share
> Affects Versions: 0.21.0
> Reporter: Scott Chen
> Assignee: Scott Chen
> Fix For: 0.22.0
>
>
> Here is the related code path.
> {code}
> JobInProgress.getTaskInProgress() (Locks JobInProgress)
> LocalityLevel.fromTask()
> FairScheduler.updateLastMapLocalityLevel()
> FairScheduler.assignTasks()
> JobTracker.heartbeat() (Locks JobTracker)
> {code}
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