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https://issues.apache.org/jira/browse/YARN-7098?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Brook Zhou updated YARN-7098:
-----------------------------
Description:
Currently, the following can happen:
1. ContainerLocalizer heartbeats to ResourceLocalizationService.
2. LocalizerTracker.processHeartbeat verifies that there is a LocalizerRunner
for the localizerId (containerId). Starts executing
3. Container receives kill event, goes from LOCALIZING -> KILLING. The
LocalizerRunner is removed from LocalizerTracker.
4. Since check (2) passed, LocalizerRunner sends heartbeat response with
LocalizerStatus.LIVE and the next file to download.
What should happen here is that (4) sends a LocalizerStatus.DIE, since (3)
happened before the heartbeat response in (4). This saves the container from
potentially downloading an extra resource which will end up being deleted
anyway.
was:
Currently, the following can happen:
1. ContainerLocalizer heartbeats to ResourceLocalizationService.
2. LocalizerTracker.processHeartbeat verifies that there is a LocalizerRunner
for the localizerId (containerId).
3. Container receives kill event, goes from LOCALIZING -> KILLING. The
LocalizerRunner is not removed from LocalizerTracker due to locking.
4. Since check (2) passed, LocalizerRunner sends heartbeat response with
LocalizerStatus.LIVE and the next file to download.
What should happen here is that (4) sends a LocalizerStatus.DIE, since (3)
happened before the heartbeat response in (4). This saves the container from
potentially downloading an extra resource which will end up being deleted
anyway.
> LocalizerRunner should immediately send heartbeat response
> LocalizerStatus.DIE when the Container transitions from LOCALIZING to KILLING
> ----------------------------------------------------------------------------------------------------------------------------------------
>
> Key: YARN-7098
> URL: https://issues.apache.org/jira/browse/YARN-7098
> Project: Hadoop YARN
> Issue Type: Bug
> Components: nodemanager
> Reporter: Brook Zhou
> Assignee: Brook Zhou
> Priority: Minor
>
> Currently, the following can happen:
> 1. ContainerLocalizer heartbeats to ResourceLocalizationService.
> 2. LocalizerTracker.processHeartbeat verifies that there is a LocalizerRunner
> for the localizerId (containerId). Starts executing
> 3. Container receives kill event, goes from LOCALIZING -> KILLING. The
> LocalizerRunner is removed from LocalizerTracker.
> 4. Since check (2) passed, LocalizerRunner sends heartbeat response with
> LocalizerStatus.LIVE and the next file to download.
> What should happen here is that (4) sends a LocalizerStatus.DIE, since (3)
> happened before the heartbeat response in (4). This saves the container from
> potentially downloading an extra resource which will end up being deleted
> anyway.
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