a196766ea0
git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1134994 13f79535-47bb-0310-9956-ffa450edef68
83 lines
3.3 KiB
XML
83 lines
3.3 KiB
XML
<?xml version="1.0"?>
|
|
<!--
|
|
Licensed to the Apache Software Foundation (ASF) under one or more
|
|
contributor license agreements. See the NOTICE file distributed with
|
|
this work for additional information regarding copyright ownership.
|
|
The ASF licenses this file to You under the Apache License, Version 2.0
|
|
(the "License"); you may not use this file except in compliance with
|
|
the License. You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
-->
|
|
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
|
|
|
|
<!-- This is one of the configuration files for capacity-scheduler
|
|
(org.apache.hadoop.mapred.CapacityTaskScheduler), a TaskScheduler
|
|
for Map/Reduce system. The other configuration file is
|
|
conf/mapred-queues.xml which it shares with the framework for
|
|
configuring queues in the system. -->
|
|
|
|
<!-- This file can be used to configure (1) job-initialization-poller
|
|
related properties and (2) the default values for various properties
|
|
for all the queues.-->
|
|
|
|
<configuration>
|
|
<!-- The default configuration settings for the capacity task scheduler -->
|
|
<!-- The default values would be applied to all the queues which don't have -->
|
|
<!-- the appropriate property for the particular queue configured in the -->
|
|
<!-- queue-configuration file conf/mapred-queues.xml -->
|
|
|
|
<property>
|
|
<name>mapred.capacity-scheduler.default-supports-priority</name>
|
|
<value>false</value>
|
|
<description>If true, priorities of jobs will be taken into
|
|
account in scheduling decisions by default in a job queue.
|
|
</description>
|
|
</property>
|
|
|
|
<property>
|
|
<name>mapred.capacity-scheduler.default-minimum-user-limit-percent</name>
|
|
<value>100</value>
|
|
<description>The percentage of the resources limited to a particular user
|
|
for the job queue at any given point of time by default.
|
|
</description>
|
|
</property>
|
|
|
|
<property>
|
|
<name>mapred.capacity-scheduler.default-maximum-initialized-jobs-per-user</name>
|
|
<value>2</value>
|
|
<description>The maximum number of jobs to be pre-initialized for a user
|
|
of the job queue.
|
|
</description>
|
|
</property>
|
|
|
|
|
|
<!-- Capacity scheduler Job Initialization configuration parameters -->
|
|
<property>
|
|
<name>mapred.capacity-scheduler.init-poll-interval</name>
|
|
<value>5000</value>
|
|
<description>The amount of time in miliseconds which is used to poll
|
|
the job queues for jobs to initialize.
|
|
</description>
|
|
</property>
|
|
<property>
|
|
<name>mapred.capacity-scheduler.init-worker-threads</name>
|
|
<value>5</value>
|
|
<description>Number of worker threads which would be used by
|
|
Initialization poller to initialize jobs in a set of queue.
|
|
If number mentioned in property is equal to number of job queues
|
|
then a single thread would initialize jobs in a queue. If lesser
|
|
then a thread would get a set of queues assigned. If the number
|
|
is greater then number of threads would be equal to number of
|
|
job queues.
|
|
</description>
|
|
</property>
|
|
|
|
</configuration>
|