[jira] [Updated] (YARN-5892) Support user-specific minimum user limit percentage in Capacity Scheduler
[
https://issues.apache.org/jira/browse/YARN-5892?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Eric Payne updated YARN-5892:
-
Attachment: YARN-5892.branch-2.8.018.patch
bq. Replaced it with {{new ConcurrentHashMap().keySet("dummy")}}
Sigh. I need to be more careful about what is and is not in JDK 1.7. This
method with this signature is also not in JDK1.7
Trying again with YARN-5892.branch-2.8.018.patch:
{{Collections.newSetFromMap(new ConcurrentHashMap());}}
[~sunilg], [~leftnoteasy], [~jlowe]: When the pre-commit build comes back
clean, can you please have a look?
> Support user-specific minimum user limit percentage in Capacity Scheduler
> -
>
> Key: YARN-5892
> URL: https://issues.apache.org/jira/browse/YARN-5892
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: capacityscheduler
>Reporter: Eric Payne
>Assignee: Eric Payne
> Fix For: 3.0.0-alpha3
>
> Attachments: Active users highlighted.jpg, YARN-5892.001.patch,
> YARN-5892.002.patch, YARN-5892.003.patch, YARN-5892.004.patch,
> YARN-5892.005.patch, YARN-5892.006.patch, YARN-5892.007.patch,
> YARN-5892.008.patch, YARN-5892.009.patch, YARN-5892.010.patch,
> YARN-5892.012.patch, YARN-5892.013.patch, YARN-5892.014.patch,
> YARN-5892.015.patch, YARN-5892.branch-2.015.patch,
> YARN-5892.branch-2.016.patch, YARN-5892.branch-2.8.016.patch,
> YARN-5892.branch-2.8.017.patch, YARN-5892.branch-2.8.018.patch
>
>
> Currently, in the capacity scheduler, the {{minimum-user-limit-percent}}
> property is per queue. A cluster admin should be able to set the minimum user
> limit percent on a per-user basis within the queue.
> This functionality is needed so that when intra-queue preemption is enabled
> (YARN-4945 / YARN-2113), some users can be deemed as more important than
> other users, and resources from VIP users won't be as likely to be preempted.
> For example, if the {{getstuffdone}} queue has a MULP of 25 percent, but user
> {{jane}} is a power user of queue {{getstuffdone}} and needs to be guaranteed
> 75 percent, the properties for {{getstuffdone}} and {{jane}} would look like
> this:
> {code}
>
>
> yarn.scheduler.capacity.root.getstuffdone.minimum-user-limit-percent
> 25
>
>
>
> yarn.scheduler.capacity.root.getstuffdone.jane.minimum-user-limit-percent
> 75
>
> {code}
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[jira] [Updated] (YARN-5892) Support user-specific minimum user limit percentage in Capacity Scheduler
[
https://issues.apache.org/jira/browse/YARN-5892?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Eric Payne updated YARN-5892:
-
Attachment: YARN-5892.branch-2.8.017.patch
Uploading YARN-5892.branch-2.8.017.patch because I used
{{ConcurrentHashMap.newKeySet()}} in the previous patch, and that method
doesn't exist in JDK 1.8.
Replaced it with new {{ConcurrentHashMap().keySet("dummy")}}
> Support user-specific minimum user limit percentage in Capacity Scheduler
> -
>
> Key: YARN-5892
> URL: https://issues.apache.org/jira/browse/YARN-5892
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: capacityscheduler
>Reporter: Eric Payne
>Assignee: Eric Payne
> Fix For: 3.0.0-alpha3
>
> Attachments: Active users highlighted.jpg, YARN-5892.001.patch,
> YARN-5892.002.patch, YARN-5892.003.patch, YARN-5892.004.patch,
> YARN-5892.005.patch, YARN-5892.006.patch, YARN-5892.007.patch,
> YARN-5892.008.patch, YARN-5892.009.patch, YARN-5892.010.patch,
> YARN-5892.012.patch, YARN-5892.013.patch, YARN-5892.014.patch,
> YARN-5892.015.patch, YARN-5892.branch-2.015.patch,
> YARN-5892.branch-2.016.patch, YARN-5892.branch-2.8.016.patch,
> YARN-5892.branch-2.8.017.patch
>
>
> Currently, in the capacity scheduler, the {{minimum-user-limit-percent}}
> property is per queue. A cluster admin should be able to set the minimum user
> limit percent on a per-user basis within the queue.
> This functionality is needed so that when intra-queue preemption is enabled
> (YARN-4945 / YARN-2113), some users can be deemed as more important than
> other users, and resources from VIP users won't be as likely to be preempted.
> For example, if the {{getstuffdone}} queue has a MULP of 25 percent, but user
> {{jane}} is a power user of queue {{getstuffdone}} and needs to be guaranteed
> 75 percent, the properties for {{getstuffdone}} and {{jane}} would look like
> this:
> {code}
>
>
> yarn.scheduler.capacity.root.getstuffdone.minimum-user-limit-percent
> 25
>
>
>
> yarn.scheduler.capacity.root.getstuffdone.jane.minimum-user-limit-percent
> 75
>
> {code}
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[jira] [Updated] (YARN-5892) Support user-specific minimum user limit percentage in Capacity Scheduler
[
https://issues.apache.org/jira/browse/YARN-5892?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Eric Payne updated YARN-5892:
-
Attachment: YARN-5892.branch-2.8.016.patch
I cherry-picked the trunk commit to branch-2 for this JIRA.
I am now attaching YARN-5892.branch-2.8.016.patch, which had to be refactored
from the branch-2 version, due to the differences in branch-2.8.
> Support user-specific minimum user limit percentage in Capacity Scheduler
> -
>
> Key: YARN-5892
> URL: https://issues.apache.org/jira/browse/YARN-5892
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: capacityscheduler
>Reporter: Eric Payne
>Assignee: Eric Payne
> Fix For: 3.0.0-alpha3
>
> Attachments: Active users highlighted.jpg, YARN-5892.001.patch,
> YARN-5892.002.patch, YARN-5892.003.patch, YARN-5892.004.patch,
> YARN-5892.005.patch, YARN-5892.006.patch, YARN-5892.007.patch,
> YARN-5892.008.patch, YARN-5892.009.patch, YARN-5892.010.patch,
> YARN-5892.012.patch, YARN-5892.013.patch, YARN-5892.014.patch,
> YARN-5892.015.patch, YARN-5892.branch-2.015.patch,
> YARN-5892.branch-2.016.patch, YARN-5892.branch-2.8.016.patch
>
>
> Currently, in the capacity scheduler, the {{minimum-user-limit-percent}}
> property is per queue. A cluster admin should be able to set the minimum user
> limit percent on a per-user basis within the queue.
> This functionality is needed so that when intra-queue preemption is enabled
> (YARN-4945 / YARN-2113), some users can be deemed as more important than
> other users, and resources from VIP users won't be as likely to be preempted.
> For example, if the {{getstuffdone}} queue has a MULP of 25 percent, but user
> {{jane}} is a power user of queue {{getstuffdone}} and needs to be guaranteed
> 75 percent, the properties for {{getstuffdone}} and {{jane}} would look like
> this:
> {code}
>
>
> yarn.scheduler.capacity.root.getstuffdone.minimum-user-limit-percent
> 25
>
>
>
> yarn.scheduler.capacity.root.getstuffdone.jane.minimum-user-limit-percent
> 75
>
> {code}
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[jira] [Updated] (YARN-5892) Support user-specific minimum user limit percentage in Capacity Scheduler
[
https://issues.apache.org/jira/browse/YARN-5892?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Eric Payne updated YARN-5892:
-
Attachment: YARN-5892.branch-2.016.patch
Submitting patch with cherry-pick from trunk to branch-2 so that pre-commit
build can run on it.
> Support user-specific minimum user limit percentage in Capacity Scheduler
> -
>
> Key: YARN-5892
> URL: https://issues.apache.org/jira/browse/YARN-5892
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: capacityscheduler
>Reporter: Eric Payne
>Assignee: Eric Payne
> Fix For: 3.0.0-alpha3
>
> Attachments: Active users highlighted.jpg, YARN-5892.001.patch,
> YARN-5892.002.patch, YARN-5892.003.patch, YARN-5892.004.patch,
> YARN-5892.005.patch, YARN-5892.006.patch, YARN-5892.007.patch,
> YARN-5892.008.patch, YARN-5892.009.patch, YARN-5892.010.patch,
> YARN-5892.012.patch, YARN-5892.013.patch, YARN-5892.014.patch,
> YARN-5892.015.patch, YARN-5892.branch-2.015.patch,
> YARN-5892.branch-2.016.patch
>
>
> Currently, in the capacity scheduler, the {{minimum-user-limit-percent}}
> property is per queue. A cluster admin should be able to set the minimum user
> limit percent on a per-user basis within the queue.
> This functionality is needed so that when intra-queue preemption is enabled
> (YARN-4945 / YARN-2113), some users can be deemed as more important than
> other users, and resources from VIP users won't be as likely to be preempted.
> For example, if the {{getstuffdone}} queue has a MULP of 25 percent, but user
> {{jane}} is a power user of queue {{getstuffdone}} and needs to be guaranteed
> 75 percent, the properties for {{getstuffdone}} and {{jane}} would look like
> this:
> {code}
>
>
> yarn.scheduler.capacity.root.getstuffdone.minimum-user-limit-percent
> 25
>
>
>
> yarn.scheduler.capacity.root.getstuffdone.jane.minimum-user-limit-percent
> 75
>
> {code}
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[jira] [Updated] (YARN-5892) Support user-specific minimum user limit percentage in Capacity Scheduler
[
https://issues.apache.org/jira/browse/YARN-5892?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Eric Payne updated YARN-5892:
-
Fix Version/s: (was: 3.0.0-beta1)
3.0.0-alpha3
[~andrew.wang], this JIRA is already in 3.0.0.alpha4 (revision
ca13b224b2feb9c44de861da9cbba8dd2a12cb35). I reopened this JIRA so that I could
implement the backport to branches 2 and 2.8.
[~sunilg], yes, if we could get YARN-3140 backported to branch-2, that would
indeed be the best. However, I am worried about the time it will take to do
that. I don't think I have the bandwidth to do that right now. Are you
volunteering to do the backport to branch-2?
Regarding locking for {{activeUsersSet}}, I don't think it is necessary if we
can overcome the concurrent modification exception problem. In fact, simple
synchronization on this method will cause deadlocks, and I think read/write
locks will have the same problem, if on a smaller scale.
I don't think locking is necessary. If the sum is inaccurate, it will be
recomputed during the next round because the list of active users has changed.
On a related note (if no locking is implemented), I think the following logic
is incorrect:
{code}
for (String userName : activeUsersSet) {
// Do the following instead of calling getUser so locking is not needed.
User user = users.get(userName);
count += (user != null) ? user.getWeight() : 1.0f;
}
{code}
I think that if the user was in {{activeUsersSet}} when the for loop started
but was later removed from the {{users}} map, the user weight should be 0.0f
instead of 1.0f
> Support user-specific minimum user limit percentage in Capacity Scheduler
> -
>
> Key: YARN-5892
> URL: https://issues.apache.org/jira/browse/YARN-5892
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: capacityscheduler
>Reporter: Eric Payne
>Assignee: Eric Payne
> Fix For: 3.0.0-alpha3
>
> Attachments: Active users highlighted.jpg, YARN-5892.001.patch,
> YARN-5892.002.patch, YARN-5892.003.patch, YARN-5892.004.patch,
> YARN-5892.005.patch, YARN-5892.006.patch, YARN-5892.007.patch,
> YARN-5892.008.patch, YARN-5892.009.patch, YARN-5892.010.patch,
> YARN-5892.012.patch, YARN-5892.013.patch, YARN-5892.014.patch,
> YARN-5892.015.patch, YARN-5892.branch-2.015.patch
>
>
> Currently, in the capacity scheduler, the {{minimum-user-limit-percent}}
> property is per queue. A cluster admin should be able to set the minimum user
> limit percent on a per-user basis within the queue.
> This functionality is needed so that when intra-queue preemption is enabled
> (YARN-4945 / YARN-2113), some users can be deemed as more important than
> other users, and resources from VIP users won't be as likely to be preempted.
> For example, if the {{getstuffdone}} queue has a MULP of 25 percent, but user
> {{jane}} is a power user of queue {{getstuffdone}} and needs to be guaranteed
> 75 percent, the properties for {{getstuffdone}} and {{jane}} would look like
> this:
> {code}
>
>
> yarn.scheduler.capacity.root.getstuffdone.minimum-user-limit-percent
> 25
>
>
>
> yarn.scheduler.capacity.root.getstuffdone.jane.minimum-user-limit-percent
> 75
>
> {code}
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[jira] [Updated] (YARN-5892) Support user-specific minimum user limit percentage in Capacity Scheduler
[
https://issues.apache.org/jira/browse/YARN-5892?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Andrew Wang updated YARN-5892:
--
Fix Version/s: (was: 3.0.0-alpha4)
3.0.0-beta1
> Support user-specific minimum user limit percentage in Capacity Scheduler
> -
>
> Key: YARN-5892
> URL: https://issues.apache.org/jira/browse/YARN-5892
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: capacityscheduler
>Reporter: Eric Payne
>Assignee: Eric Payne
> Fix For: 3.0.0-beta1
>
> Attachments: Active users highlighted.jpg, YARN-5892.001.patch,
> YARN-5892.002.patch, YARN-5892.003.patch, YARN-5892.004.patch,
> YARN-5892.005.patch, YARN-5892.006.patch, YARN-5892.007.patch,
> YARN-5892.008.patch, YARN-5892.009.patch, YARN-5892.010.patch,
> YARN-5892.012.patch, YARN-5892.013.patch, YARN-5892.014.patch,
> YARN-5892.015.patch, YARN-5892.branch-2.015.patch
>
>
> Currently, in the capacity scheduler, the {{minimum-user-limit-percent}}
> property is per queue. A cluster admin should be able to set the minimum user
> limit percent on a per-user basis within the queue.
> This functionality is needed so that when intra-queue preemption is enabled
> (YARN-4945 / YARN-2113), some users can be deemed as more important than
> other users, and resources from VIP users won't be as likely to be preempted.
> For example, if the {{getstuffdone}} queue has a MULP of 25 percent, but user
> {{jane}} is a power user of queue {{getstuffdone}} and needs to be guaranteed
> 75 percent, the properties for {{getstuffdone}} and {{jane}} would look like
> this:
> {code}
>
>
> yarn.scheduler.capacity.root.getstuffdone.minimum-user-limit-percent
> 25
>
>
>
> yarn.scheduler.capacity.root.getstuffdone.jane.minimum-user-limit-percent
> 75
>
> {code}
--
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[jira] [Updated] (YARN-5892) Support user-specific minimum user limit percentage in Capacity Scheduler
[
https://issues.apache.org/jira/browse/YARN-5892?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Eric Payne updated YARN-5892:
-
Attachment: YARN-5892.branch-2.015.patch
[~sunilg], [~leftnoteasy], [~jlowe]:
Since branch-2 and 2.8 are somewhat different than trunk, it was necessary to
make some design decisions that I would like you to be aware of when reviewing
this backport:
- As noted
[here|https://issues.apache.org/jira/browse/YARN-2113?focusedCommentId=16023111&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16023111],
I did not backport YARN-5889 because it depends on locking changes from
YARN-3140 and other locking JIRAs.
- In trunk, a change was made in YARN-5889 that changed the way
{{computeUserLimit}} calculates user limit. In branch-2 and branch-2.8,
{{userLimitResource = (all used resources in queue) / (num active users in
queue)}}. In trunk after YARN-5889, {{userLimitResource = (all used resources
by active users in queue) / (num active users)}}.
-- Since branch-2 and 2.8 use {{all used resources by active users in queue}}
instead of {{all used resources in queue}}, it is not necessary to modify
{{LeafQueue}} to keep track of when resources are activated and deactivated
like was done in {{UsersManager}} in trunk.
-- However, I did add the activeUsersSet to LeafQueue and all the places it is
modified so it can be used to sum active users times weight.
-- Therefore, it wasn't necessary to create a separate UsersManager class as
was done in YARN-5889. Instead, I added a small amount of code in
ActiveUsersManager to keep track of active users and to indicate when users are
either activated or deactivated.
- {{LeafQueue#sumActiveUsersTimesWeights}} should not do anything that
synchronizes or locks. This is to avoid deadlocks because it is called by
getHeadRoom (indirectly), which is called by {{FiCaSchedulerApp}}.
{code}
float sumActiveUsersTimesWeights() {
float count = 0.0f;
for (String userName : activeUsersSet) {
User user = users.get(userName);
count += (user != null) ? user.getWeight() : 1.0f;
}
return count;
}
{code}
-- This opens up a race condition for when a user is added or removed from
{{activeUsersSet}} while {{sumActiveUsersTimesWeights}} is iterating over the
set.
--- I'm not an expert in Java syncronization. Does this expose {{LeafQueue}} to
concurrent modification exceptions?
--- There is no {{ConcurrentHashSet}} so should I make {{activeUsersSet}} a
{{ConcurrentHashMap}}?
> Support user-specific minimum user limit percentage in Capacity Scheduler
> -
>
> Key: YARN-5892
> URL: https://issues.apache.org/jira/browse/YARN-5892
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: capacityscheduler
>Reporter: Eric Payne
>Assignee: Eric Payne
> Fix For: 3.0.0-alpha4
>
> Attachments: Active users highlighted.jpg, YARN-5892.001.patch,
> YARN-5892.002.patch, YARN-5892.003.patch, YARN-5892.004.patch,
> YARN-5892.005.patch, YARN-5892.006.patch, YARN-5892.007.patch,
> YARN-5892.008.patch, YARN-5892.009.patch, YARN-5892.010.patch,
> YARN-5892.012.patch, YARN-5892.013.patch, YARN-5892.014.patch,
> YARN-5892.015.patch, YARN-5892.branch-2.015.patch
>
>
> Currently, in the capacity scheduler, the {{minimum-user-limit-percent}}
> property is per queue. A cluster admin should be able to set the minimum user
> limit percent on a per-user basis within the queue.
> This functionality is needed so that when intra-queue preemption is enabled
> (YARN-4945 / YARN-2113), some users can be deemed as more important than
> other users, and resources from VIP users won't be as likely to be preempted.
> For example, if the {{getstuffdone}} queue has a MULP of 25 percent, but user
> {{jane}} is a power user of queue {{getstuffdone}} and needs to be guaranteed
> 75 percent, the properties for {{getstuffdone}} and {{jane}} would look like
> this:
> {code}
>
>
> yarn.scheduler.capacity.root.getstuffdone.minimum-user-limit-percent
> 25
>
>
>
> yarn.scheduler.capacity.root.getstuffdone.jane.minimum-user-limit-percent
> 75
>
> {code}
--
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[jira] [Updated] (YARN-5892) Support user-specific minimum user limit percentage in Capacity Scheduler
[
https://issues.apache.org/jira/browse/YARN-5892?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Andrew Wang updated YARN-5892:
--
Fix Version/s: 3.0.0-alpha4
> Support user-specific minimum user limit percentage in Capacity Scheduler
> -
>
> Key: YARN-5892
> URL: https://issues.apache.org/jira/browse/YARN-5892
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: capacityscheduler
>Reporter: Eric Payne
>Assignee: Eric Payne
> Fix For: 3.0.0-alpha4
>
> Attachments: Active users highlighted.jpg, YARN-5892.001.patch,
> YARN-5892.002.patch, YARN-5892.003.patch, YARN-5892.004.patch,
> YARN-5892.005.patch, YARN-5892.006.patch, YARN-5892.007.patch,
> YARN-5892.008.patch, YARN-5892.009.patch, YARN-5892.010.patch,
> YARN-5892.012.patch, YARN-5892.013.patch, YARN-5892.014.patch,
> YARN-5892.015.patch
>
>
> Currently, in the capacity scheduler, the {{minimum-user-limit-percent}}
> property is per queue. A cluster admin should be able to set the minimum user
> limit percent on a per-user basis within the queue.
> This functionality is needed so that when intra-queue preemption is enabled
> (YARN-4945 / YARN-2113), some users can be deemed as more important than
> other users, and resources from VIP users won't be as likely to be preempted.
> For example, if the {{getstuffdone}} queue has a MULP of 25 percent, but user
> {{jane}} is a power user of queue {{getstuffdone}} and needs to be guaranteed
> 75 percent, the properties for {{getstuffdone}} and {{jane}} would look like
> this:
> {code}
>
>
> yarn.scheduler.capacity.root.getstuffdone.minimum-user-limit-percent
> 25
>
>
>
> yarn.scheduler.capacity.root.getstuffdone.jane.minimum-user-limit-percent
> 75
>
> {code}
--
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[jira] [Updated] (YARN-5892) Support user-specific minimum user limit percentage in Capacity Scheduler
[
https://issues.apache.org/jira/browse/YARN-5892?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Sunil G updated YARN-5892:
--
Summary: Support user-specific minimum user limit percentage in Capacity
Scheduler (was: Capacity Scheduler: Support user-specific minimum user limit
percent)
> Support user-specific minimum user limit percentage in Capacity Scheduler
> -
>
> Key: YARN-5892
> URL: https://issues.apache.org/jira/browse/YARN-5892
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: capacityscheduler
>Reporter: Eric Payne
>Assignee: Eric Payne
> Attachments: Active users highlighted.jpg, YARN-5892.001.patch,
> YARN-5892.002.patch, YARN-5892.003.patch, YARN-5892.004.patch,
> YARN-5892.005.patch, YARN-5892.006.patch, YARN-5892.007.patch,
> YARN-5892.008.patch, YARN-5892.009.patch, YARN-5892.010.patch,
> YARN-5892.012.patch, YARN-5892.013.patch, YARN-5892.014.patch,
> YARN-5892.015.patch
>
>
> Currently, in the capacity scheduler, the {{minimum-user-limit-percent}}
> property is per queue. A cluster admin should be able to set the minimum user
> limit percent on a per-user basis within the queue.
> This functionality is needed so that when intra-queue preemption is enabled
> (YARN-4945 / YARN-2113), some users can be deemed as more important than
> other users, and resources from VIP users won't be as likely to be preempted.
> For example, if the {{getstuffdone}} queue has a MULP of 25 percent, but user
> {{jane}} is a power user of queue {{getstuffdone}} and needs to be guaranteed
> 75 percent, the properties for {{getstuffdone}} and {{jane}} would look like
> this:
> {code}
>
>
> yarn.scheduler.capacity.root.getstuffdone.minimum-user-limit-percent
> 25
>
>
>
> yarn.scheduler.capacity.root.getstuffdone.jane.minimum-user-limit-percent
> 75
>
> {code}
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