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Chris Li reassigned HADOOP-12382:
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Assignee: Chris Li (was: Ajith S)
> Add Documentation for FairCallQueue
>
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Chris Li commented on HADOOP-12382:
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I can do this, sometime later this week. I've assembled various
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Chris Li commented on HADOOP-9640:
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[~ajithshetty] Sure, what did you have in mind?
> RPC Congestion
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Chris Li commented on HADOOP-12189:
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Great, couple more minor things:
Can we update
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Chris Li commented on HADOOP-12189:
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Looks good to me. +1
CallQueueManager may drop
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Chris Li commented on HADOOP-12189:
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[~arpitagarwal] I think [~zxu] encountered unit
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Chris Li commented on HADOOP-12189:
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That's a significant performance hit! I think we
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Chris Li commented on HADOOP-12189:
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[~zxu] One of the design decisions of queue
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Chris Li commented on HADOOP-12189:
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Hi [~zxu], I see, it's a synchronized map, so its
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Chris Li commented on HADOOP-12189:
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Wait, did the throughput drop from 437k/300ms to
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Chris Li updated HADOOP-11238:
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Attachment: HADOOP-11238.003.patch
Re-attaching patch to re-trigger build (no changes were made)
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Chris Li commented on HADOOP-11238:
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[~benoyantony] good catch, I fixed that in this
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Chris Li updated HADOOP-11238:
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Attachment: HADOOP-11238.003.patch
Update the NameNode's Group Cache in the background when possible
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Chris Li updated HADOOP-11238:
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Summary: Group Cache should not cause namenode pause (was: Group cache
expiry causes namenode
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Chris Li updated HADOOP-11238:
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Description:
This patch prevents the namenode from pausing during group cache expiry when
getGroups
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Chris Li updated HADOOP-11238:
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Description:
This patch addresses an issue where the namenode pauses during group resolution
by only
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Chris Li commented on HADOOP-11238:
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[~benoyantony] I trimmed the length on line 63
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Chris Li updated HADOOP-11238:
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Attachment: HADOOP-11238.patch
Group Cache should not cause namenode pause
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Chris Li commented on HADOOP-10597:
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Ah okay, thanks for clarifying, makes sense now
Chris Li created HADOOP-11299:
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Summary: Selective Group Cache Refresh
Key: HADOOP-11299
URL: https://issues.apache.org/jira/browse/HADOOP-11299
Project: Hadoop Common
Issue Type: New Feature
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Chris Li commented on HADOOP-11238:
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Sure:
This patch addresses the issue by only
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Chris Li commented on HADOOP-11238:
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Hmm, that test passes on my local machine so it
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Chris Li updated HADOOP-11238:
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Status: Patch Available (was: Open)
Group cache expiry causes namenode slowdown
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Chris Li updated HADOOP-11238:
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Attachment: HADOOP-11238.patch
Uploading patch
Group cache expiry causes namenode slowdown
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Chris Li commented on HADOOP-10597:
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Cool. I think this is a good feature to have.
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Chris Li resolved HADOOP-10284.
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Resolution: Not a Problem
Assignee: Chris Li
Resolved in HADOOP-10281
Add metrics to the
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Chris Li resolved HADOOP-10283.
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Resolution: Not a Problem
Resolved in HADOOP-10282
Make Scheduler and Multiplexer swappable
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Chris Li reassigned HADOOP-10302:
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Assignee: Chris Li
Allow CallQueue impls to be swapped at runtime (part 1: internals) Depends
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Chris Li updated HADOOP-11238:
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Description:
Our namenode pauses for 12-60 seconds several times every hour or so. During
these
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Chris Li updated HADOOP-11238:
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Description:
Our namenode pauses for 12-60 seconds several times every hour. During these
pauses, no
Chris Li created HADOOP-11238:
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Summary: Group cache expiry causes namenode slowdown
Key: HADOOP-11238
URL: https://issues.apache.org/jira/browse/HADOOP-11238
Project: Hadoop Common
Issue Type:
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Chris Li updated HADOOP-11238:
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Description:
Our namenode pauses for 12-60 seconds several times every hour or so. During
these
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Chris Li reassigned HADOOP-11238:
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Assignee: Chris Li
Group cache expiry causes namenode slowdown
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Chris Li updated HADOOP-9640:
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Description:
For an easy-to-read summary see:
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Chris Li commented on HADOOP-10597:
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Hi [~mingma], thanks for adding some numbers. If
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Chris Li updated HADOOP-10283:
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Description: Currently the FairCallQueue uses the DecayRpcScheduler
RoundRobinMultiplexer, this
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Chris Li commented on HADOOP-10282:
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Thanks!
Up next some minor patches:
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Chris Li updated HADOOP-10286:
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Priority: Minor (was: Major)
Allow RPCCallBenchmark to benchmark calls by different users
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Chris Li updated HADOOP-10286:
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Status: Open (was: Patch Available)
Canceling patch so I can add better metrics: 50th percentile,
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Chris Li updated HADOOP-10282:
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Attachment: HADOOP-10282.patch
Hopefully this fixes the unchecked assignment warnings
Create a
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Chris Li updated HADOOP-10282:
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Status: Patch Available (was: Open)
Create a FairCallQueue: a multi-level call queue which
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Chris Li updated HADOOP-10282:
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Attachment: HADOOP-10282.patch
Hi [~arpitagarwal] sorry for the delay, I wanted to fix up the tests
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Chris Li commented on HADOOP-10282:
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I think you're right, that doc was from an older
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Chris Li updated HADOOP-10281:
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Attachment: HADOOP-10281-preview.patch
My bad, I didn't want CI picking this file up; here it is
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Chris Li updated HADOOP-10281:
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Attachment: HADOOP-10281.patch
Removed the HistoryRpcSchedulerMXBean
Create a scheduler, which
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Chris Li commented on HADOOP-10281:
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Awesome, thanks Arpit!
The next stage of this
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Chris Li commented on HADOOP-10281:
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Hi [~arpitagarwal] that's correct. It's not very
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Chris Li commented on HADOOP-10281:
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I didn't record it, but I can if you're
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Chris Li updated HADOOP-10281:
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Attachment: HADOOP-10281.patch
Create a scheduler, which assigns schedulables a priority level
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Chris Li updated HADOOP-10281:
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Status: Patch Available (was: Open)
Create a scheduler, which assigns schedulables a priority
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Chris Li updated HADOOP-10281:
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Attachment: (was: HADOOP-10281-preview.patch)
Create a scheduler, which assigns schedulables a
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Chris Li updated HADOOP-10281:
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Description:
The Scheduler decides which sub-queue to assign a given Call. It implements a
single
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Chris Li commented on HADOOP-10281:
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Sorry for the delay, I completed tests at scale
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Chris Li commented on HADOOP-10281:
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Also regarding the spikes in above data: spikes
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Chris Li commented on HADOOP-10811:
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One thing worth discussing is also whether or not
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Chris Li commented on HADOOP-10281:
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Hey guys, sorry for the delay, was on vacation,
Chris Li created HADOOP-10825:
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Summary: Refactor class creation logic in Configuration into
nested class
Key: HADOOP-10825
URL: https://issues.apache.org/jira/browse/HADOOP-10825
Project: Hadoop Common
Chris Li created HADOOP-10828:
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Summary: Allow user to reload classes
Key: HADOOP-10828
URL: https://issues.apache.org/jira/browse/HADOOP-10828
Project: Hadoop Common
Issue Type: Sub-task
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Chris Li updated HADOOP-10828:
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Description:
This patch should allow reloading classes at runtime. The software will
maintain a set
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Chris Li updated HADOOP-10825:
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Status: Patch Available (was: Open)
Refactor class creation logic in Configuration into nested
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Chris Li updated HADOOP-10825:
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Attachment: HADOOP-10811-10825.patch
Refactor class creation logic in Configuration into nested
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Chris Li updated HADOOP-10828:
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Attachment: HADOOP-10811-10828-preview.patch
First a disclaimer: not knowledgable enough in java
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Chris Li commented on HADOOP-10825:
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Build failures should be unrelated
Refactor
Chris Li created HADOOP-10811:
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Summary: Allow classes to be reloaded at runtime
Key: HADOOP-10811
URL: https://issues.apache.org/jira/browse/HADOOP-10811
Project: Hadoop Common
Issue Type: New
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Chris Li updated HADOOP-10281:
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Attachment: HADOOP-10281-preview.patch
Hi [~arpitagarwal], I've attached a preview of a new
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Chris Li updated HADOOP-10279:
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Attachment: HADOOP-10279.patch
Thanks for the feedback Arpit. Uploaded new patch with the changes
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Chris Li updated HADOOP-10279:
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Attachment: HADOOP-10279.patch
Create multiplexer, a requirement for the fair queue
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Chris Li updated HADOOP-10279:
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Attachment: (was: HADOOP-10279.patch)
Create multiplexer, a requirement for the fair queue
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Chris Li updated HADOOP-10281:
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Attachment: HADOOP-10281.patch
Hi Arpit,
I agree on #1; I've had this idea sitting around in my
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Chris Li updated HADOOP-10281:
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Attachment: HADOOP-10281.patch
Create a scheduler, which assigns schedulables a priority level
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Chris Li updated HADOOP-10281:
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Attachment: (was: HADOOP-10281.patch)
Create a scheduler, which assigns schedulables a priority
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Chris Li updated HADOOP-10282:
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Attachment: HADOOP-10282.patch
Hi Arpit,
1. LinkedBlockingQueue will be on by default, this can be
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Chris Li commented on HADOOP-10282:
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Hi Arapit,
Check out HADOOP-10278, which allows
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Chris Li commented on HADOOP-10279:
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Hi Arapit, sorry for the lack of context; the mux
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Chris Li commented on HADOOP-10279:
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I'll put a writeup in HADOOP-10282 and let you
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Chris Li updated HADOOP-10282:
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Description:
The FairCallQueue ensures quality of service by altering the order of RPC calls
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Chris Li updated HADOOP-10279:
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Description:
The Multiplexer helps the FairCallQueue decide which of its internal sub-queues
to
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Chris Li updated HADOOP-10281:
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Description: The Scheduler decides which sub-queue to assign a given Call.
Create a scheduler,
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Chris Li updated HADOOP-10279:
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Description:
The Multiplexer helps the FairCallQueue decide which of its internal sub-queues
to
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Chris Li updated HADOOP-10281:
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Description:
The Scheduler decides which sub-queue to assign a given Call. It implements a
single
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Chris Li updated HADOOP-10281:
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Description:
The Scheduler decides which sub-queue to assign a given Call. It implements a
single
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Chris Li reassigned HADOOP-10282:
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Assignee: Chris Li
Create a FairCallQueue: a multi-level call queue which schedules incoming
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Chris Li reassigned HADOOP-10281:
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Assignee: Chris Li
Create a scheduler, which assigns schedulables a priority level
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Chris Li commented on HADOOP-10279:
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Added comments to and linked all 3 parts of the
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Chris Li updated HADOOP-10376:
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Attachment: HADOOP-10376.patch
Ah oops, I accidentally reverted that change with git on my end.
Chris Li created HADOOP-10685:
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Summary: Move RefreshCallQueue from its own protocol to the
GenericRefreshProto
Key: HADOOP-10685
URL: https://issues.apache.org/jira/browse/HADOOP-10685
Project: Hadoop
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Chris Li commented on HADOOP-10376:
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Thanks for reviewing!
I think the next step is
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Chris Li updated HADOOP-10685:
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Summary: Migrate Standalone Refresh Protocols to the GenericRefreshProto
(was: Move
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Chris Li updated HADOOP-10685:
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Description:
Now that we have a GenericRefreshProtocol, we should migrate existing protocols
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Chris Li commented on HADOOP-10376:
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Hmm, how about duplicating the functionality,
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Chris Li updated HADOOP-10376:
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Attachment: HADOOP-10376.patch
[~benoyantony] good catch, made mutators synchronized. Also on name,
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Chris Li updated HADOOP-10376:
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Attachment: HADOOP-10376.patch
Uploaded new patch.
I decided to add support for multi registration
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Chris Li commented on HADOOP-10376:
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Hi Arapit,
If we make this feature namenode
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Chris Li commented on HADOOP-10376:
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Hi Arapit, thanks for the suggestions.
Optional
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Chris Li updated HADOOP-10376:
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Attachment: HADOOP-10376.patch
Updated patch with support for many handlers mapping to a single
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Chris Li updated HADOOP-10376:
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Attachment: HADOOP-10376.patch
Hi [~arpitagarwal], sounds good. I went ahead and uploaded a patch.
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https://issues.apache.org/jira/browse/HADOOP-9640?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanelfocusedCommentId=13988113#comment-13988113
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Chris Li commented on HADOOP-9640:
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Uploaded patches to HADOOP-10279, HADOOP-10281, and
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Chris Li updated HADOOP-10279:
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Attachment: HADOOP-10279.patch
Upload latest version of patch for reference
Create multiplexer, a
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Chris Li updated HADOOP-10281:
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Attachment: HADOOP-10281.patch
Upload latest version for reference
Create a scheduler, which
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Chris Li updated HADOOP-10282:
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Attachment: HADOOP-10282.patch
Update with latest version of the FCQ to get preliminary feedback
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