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https://issues.apache.org/jira/browse/YARN-5774?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Yufei Gu updated YARN-5774:
---------------------------
Description:
MR Job stuck in ACCEPTED status without any progress in Fair Scheduler because
there is no resource request for the AM. This happened when you configure
{{yarn.scheduler.minimum-allocation-mb}} to zero.
The problem is in the code used by both Capacity Scheduler and Fair Scheduler.
{{scheduler.increment-allocation-mb}} is a concept in FS, but not CS. So the
common code in class RMAppManager passes the
{{yarn.scheduler.minimum-allocation-mb}} as incremental one because there is no
incremental one for CS when it tried to normalize the resource requests.
{code}
SchedulerUtils.normalizeRequest(amReq, scheduler.getResourceCalculator(),
scheduler.getClusterResource(),
scheduler.getMinimumResourceCapability(),
scheduler.getMaximumResourceCapability(),
scheduler.getMinimumResourceCapability()); --> incrementResource
should be passed here.
{code}
was:
MR Job stuck in ACCEPTED status without any progress in Fair Scheduler because
there is no resource request for the AM. This happened when you configure
{{yarn.scheduler.minimum-allocation-mb}} to zero.
The problem is in the code used by both Capacity Scheduler and Fair Scheduler.
scheduler.increment-allocation-mb is a concept in FS, but not CS. So the common
code in class RMAppManager passes the yarn.scheduler.minimum-allocation-mb as
incremental one because there is no incremental one for CS when it tried to
normalize the resource requests.
{code}
SchedulerUtils.normalizeRequest(amReq, scheduler.getResourceCalculator(),
scheduler.getClusterResource(),
scheduler.getMinimumResourceCapability(),
scheduler.getMaximumResourceCapability(),
scheduler.getMinimumResourceCapability()); --> incrementResource
should be passed here.
{code}
> MR Job stuck in ACCEPTED status without any progress in Fair Scheduler if
> {{yarn.scheduler.minimum-allocation-mb}} is 0.
> ------------------------------------------------------------------------------------------------------------------------
>
> Key: YARN-5774
> URL: https://issues.apache.org/jira/browse/YARN-5774
> Project: Hadoop YARN
> Issue Type: Bug
> Components: resourcemanager
> Affects Versions: 3.0.0-alpha1
> Reporter: Yufei Gu
> Assignee: Yufei Gu
>
> MR Job stuck in ACCEPTED status without any progress in Fair Scheduler
> because there is no resource request for the AM. This happened when you
> configure {{yarn.scheduler.minimum-allocation-mb}} to zero.
> The problem is in the code used by both Capacity Scheduler and Fair
> Scheduler. {{scheduler.increment-allocation-mb}} is a concept in FS, but not
> CS. So the common code in class RMAppManager passes the
> {{yarn.scheduler.minimum-allocation-mb}} as incremental one because there is
> no incremental one for CS when it tried to normalize the resource requests.
> {code}
> SchedulerUtils.normalizeRequest(amReq, scheduler.getResourceCalculator(),
> scheduler.getClusterResource(),
> scheduler.getMinimumResourceCapability(),
> scheduler.getMaximumResourceCapability(),
> scheduler.getMinimumResourceCapability()); --> incrementResource
> should be passed here.
> {code}
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