hadoop2.2.0 mapred-site.xml--Job Notification Configuration

<property>
<name>mapreduce.job.end-notification.url</name>
<!--<value>http://localhost:8080/jobstatus.php?jobId=$jobId&jobStatus=$jobStatus</value>-->
<description>Indicates url which will be called on completion of job to inform
end status of job.
User can give at most 2 variables with URI : $jobId and $jobStatus.
If they are present in URI, then they will be replaced by their
respective values.
</description>
</property>

<property>
<name>mapreduce.job.end-notification.retry.attempts</name>
<value>0</value>
<description>The number of times the submitter of the job wants to retry job
end notification if it fails. This is capped by
mapreduce.job.end-notification.max.attempts</description>
</property>

<property>
<name>mapreduce.job.end-notification.retry.interval</name>
<value>1000</value>
<description>The number of milliseconds the submitter of the job wants to
wait before job end notification is retried if it fails. This is capped by
mapreduce.job.end-notification.max.retry.interval</description>
</property>

<property>
<name>mapreduce.job.end-notification.max.attempts</name>
<value>5</value>
<final>true</final>
<description>The maximum number of times a URL will be read for providing job
end notification. Cluster administrators can set this to limit how long
after end of a job, the Application Master waits before exiting. Must be
marked as final to prevent users from overriding this.
</description>
</property>

<property>
<name>mapreduce.job.end-notification.max.retry.interval</name>
<value>5000</value>
<final>true</final>
<description>The maximum amount of time (in milliseconds) to wait before
retrying job end notification. Cluster administrators can set this to
limit how long the Application Master waits before exiting. Must be marked
as final to prevent users from overriding this.</description>
</property>

<property>
<name>yarn.app.mapreduce.am.env</name>
<value></value>
<description>User added environment variables for the MR App Master
processes. Example :
1) A=foo  This will set the env variable A to foo
2) B=$B:c This is inherit tasktracker's B env variable.
</description>
</property>

<property>
<name>yarn.app.mapreduce.am.command-opts</name>
<value>-Xmx1024m</value>
<description>Java opts for the MR App Master processes.
The following symbol, if present, will be interpolated: @taskid@ is replaced
by current TaskID. Any other occurrences of '@' will go unchanged.
For example, to enable verbose gc logging to a file named for the taskid in
/tmp and to set the heap maximum to be a gigabyte, pass a 'value' of:
-Xmx1024m -verbose:gc -Xloggc:/tmp/@taskid@.gc

Usage of -Djava.library.path can cause programs to no longer function if
hadoop native libraries are used. These values should instead be set as part
of LD_LIBRARY_PATH in the map / reduce JVM env using the mapreduce.map.env and
mapreduce.reduce.env config settings.
</description>
</property>

d8a7
<property>
<name>yarn.app.mapreduce.am.admin-command-opts</name>
<value></value>
<description>Java opts for the MR App Master processes for admin purposes.
It will appears before the opts set by yarn.app.mapreduce.am.command-opts and
thus its options can be overridden user.

Usage of -Djava.library.path can cause programs to no longer function if
hadoop native libraries are used. These values should instead be set as part
of LD_LIBRARY_PATH in the map / reduce JVM env using the mapreduce.map.env and
mapreduce.reduce.env config settings.
</description>
</property>

<property>
<name>yarn.app.mapreduce.am.job.task.listener.thread-count</name>
<value>30</value>
<description>The number of threads used to handle RPC calls in the
MR AppMaster from remote tasks</description>
</property>

<property>
<name>yarn.app.mapreduce.am.job.client.port-range</name>
<value></value>
<description>Range of ports that the MapReduce AM can use when binding.
Leave blank if you want all possible ports.
For example 50000-50050,50100-50200</description>
</property>

<property>
<name>yarn.app.mapreduce.am.job.committer.cancel-timeout</name>
<value>60000</value>
<description>The amount of time in milliseconds to wait for the output
committer to cancel an operation if the job is killed</description>
</property>

<property>
<name>yarn.app.mapreduce.am.job.committer.commit-window</name>
<value>10000</value>
<description>Defines a time window in milliseconds for output commit
operations.  If contact with the RM has occurred within this window then
commits are allowed, otherwise the AM will not allow output commits until
contact with the RM has been re-established.</description>
</property>

<property>
<name>yarn.app.mapreduce.am.scheduler.heartbeat.interval-ms</name>
<value>1000</value>
<description>The interval in ms at which the MR AppMaster should send
heartbeats to the ResourceManager</description>
</property>

<property>
<name>yarn.app.mapreduce.client-am.ipc.max-retries</name>
<value>1</value>
<description>The number of client retries to the AM - before reconnecting
to the RM to fetch Application Status.</description>
</property>

<property>
<name>yarn.app.mapreduce.client.max-retries</name>
<value>3</value>
<description>The number of client retries to the RM/HS/AM before
throwing exception. This is a layer above the ipc.</description>
</property>

<property>
<name>yarn.app.mapreduce.am.resource.mb</name>
<value>1536</value>
<description>The amount of memory the MR AppMaster needs.</description>
</property>