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From zjs...@apache.org
Subject [13/43] hadoop git commit: YARN-3199. Fair Scheduler documentation improvements (Rohit Agarwal via aw)
Date Tue, 03 Mar 2015 19:31:51 GMT
YARN-3199. Fair Scheduler documentation improvements (Rohit Agarwal via aw)


Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo
Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/8472d729
Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/8472d729
Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/8472d729

Branch: refs/heads/YARN-2928
Commit: 8472d729974ea3ccf9fff5ce4f5309aa8e43a49e
Parents: 2e44b75
Author: Allen Wittenauer <aw@apache.org>
Authored: Sat Feb 28 11:36:15 2015 -0800
Committer: Allen Wittenauer <aw@apache.org>
Committed: Sat Feb 28 11:36:15 2015 -0800

----------------------------------------------------------------------
 hadoop-yarn-project/CHANGES.txt                                 | 5 ++++-
 .../hadoop-yarn-site/src/site/markdown/FairScheduler.md         | 2 ++
 2 files changed, 6 insertions(+), 1 deletion(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hadoop/blob/8472d729/hadoop-yarn-project/CHANGES.txt
----------------------------------------------------------------------
diff --git a/hadoop-yarn-project/CHANGES.txt b/hadoop-yarn-project/CHANGES.txt
index 02b1831..cef1758 100644
--- a/hadoop-yarn-project/CHANGES.txt
+++ b/hadoop-yarn-project/CHANGES.txt
@@ -1,6 +1,6 @@
 Hadoop YARN Change Log
 
-Trunk - Unreleased 
+Trunk - Unreleased
 
   INCOMPATIBLE CHANGES
 
@@ -23,6 +23,9 @@ Trunk - Unreleased
     YARN-3168. Convert site documentation from apt to markdown (Gururaj Shetty
     via aw)
 
+    YARN-3199. Fair Scheduler documentation improvements (Rohit Agarwal via
+    aw)
+
   OPTIMIZATIONS
 
   BUG FIXES

http://git-wip-us.apache.org/repos/asf/hadoop/blob/8472d729/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/FairScheduler.md
----------------------------------------------------------------------
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/FairScheduler.md
b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/FairScheduler.md
index 1812a44..a58b3d3 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/FairScheduler.md
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/FairScheduler.md
@@ -85,6 +85,8 @@ Customizing the Fair Scheduler typically involves altering two files. First,
sch
 | `yarn.scheduler.fair.locality.threshold.rack` | For applications that request containers
on particular racks, the number of scheduling opportunities since the last container assignment
to wait before accepting a placement on another rack. Expressed as a float between 0 and 1,
which, as a fraction of the cluster size, is the number of scheduling opportunities to pass
up. The default value of -1.0 means don't pass up any scheduling opportunities. |
 | `yarn.scheduler.fair.allow-undeclared-pools` | If this is true, new queues can be created
at application submission time, whether because they are specified as the application's queue
by the submitter or because they are placed there by the user-as-default-queue property. If
this is false, any time an app would be placed in a queue that is not specified in the allocations
file, it is placed in the "default" queue instead. Defaults to true. If a queue placement
policy is given in the allocations file, this property is ignored. |
 | `yarn.scheduler.fair.update-interval-ms` | The interval at which to lock the scheduler
and recalculate fair shares, recalculate demand, and check whether anything is due for preemption.
Defaults to 500 ms. |
+| `yarn.scheduler.increment-allocation-mb` | The fairscheduler grants memory in increments
of this value. If you submit a task with resource request that is not a multiple of increment-allocation-mb,
the request will be rounded up to the nearest increment. Defaults to 1024 MB. |
+| `yarn.scheduler.increment-allocation-vcores` | The fairscheduler grants vcores in increments
of this value. If you submit a task with resource request that is not a multiple of increment-allocation-vcores,
the request will be rounded up to the nearest increment. Defaults to 1. |
 
 ###Allocation file format
 


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