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[Spark-1234] clean up text in running-on-yarn.md yarn-client section #130

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[Spark-1234] clean up text in running-on-yarn.md yarn-client section #130

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0309cf9
SPARK-1134 bug with ipython prevents non-interactive use with spark; …
Feb 27, 2014
98b3828
Cleaned up text of yarn-client instructions. [SPARK-1234]
Mar 12, 2014
1dfbc4d
fix typo in running-on-yarn default SPARK_MASTER_MEMORY values
Mar 20, 2014
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3 changes: 2 additions & 1 deletion bin/pyspark
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Expand Up @@ -58,7 +58,8 @@ if [ -n "$IPYTHON_OPTS" ]; then
IPYTHON=1
fi

if [[ "$IPYTHON" = "1" ]] ; then
# Only use ipython if no command line arguments were provided [SPARK-1134]
if [[ "$IPYTHON" = "1" && $# = 0 ]] ; then
exec ipython $IPYTHON_OPTS
else
exec "$PYSPARK_PYTHON" "$@"
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8 changes: 4 additions & 4 deletions docs/running-on-yarn.md
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Expand Up @@ -99,16 +99,16 @@ With this mode, your application is actually run on the remote machine where the

## Launch spark application with yarn-client mode.

With yarn-client mode, the application will be launched locally. Just like running application or spark-shell on Local / Mesos / Standalone mode. The launch method is also the similar with them, just make sure that when you need to specify a master url, use "yarn-client" instead. And you also need to export the env value for SPARK_JAR.
With yarn-client mode, the application will be launched locally, as when running the application or spark-shell on Local / Mesos / Standalone mode. The method to launch is similar as with those modes, except you should specify "yarn-client" as the master URL. You also need to export the env value for SPARK_JAR.

Configuration in yarn-client mode:

In order to tune worker core/number/memory etc. You need to export environment variables or add them to the spark configuration file (./conf/spark_env.sh). The following are the list of options.
In order to tune worker core/number/memory etc. you need to export environment variables or add them to the spark configuration file (./conf/spark_env.sh). The following are the list of options.

* `SPARK_WORKER_INSTANCES`, Number of workers to start (Default: 2)
* `SPARK_WORKER_CORES`, Number of cores for the workers (Default: 1).
* `SPARK_WORKER_CORES`, Number of cores for the workers (Default: 1)
* `SPARK_WORKER_MEMORY`, Memory per Worker (e.g. 1000M, 2G) (Default: 1G)
* `SPARK_MASTER_MEMORY`, Memory for Master (e.g. 1000M, 2G) (Default: 512 Mb)
* `SPARK_MASTER_MEMORY`, Memory for Master (e.g. 1000M, 2G) (Default: 512 M)
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@sryza sryza Mar 12, 2014

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Should take out the space between 512 and "M" as well.

* `SPARK_YARN_APP_NAME`, The name of your application (Default: Spark)
* `SPARK_YARN_QUEUE`, The hadoop queue to use for allocation requests (Default: 'default')
* `SPARK_YARN_DIST_FILES`, Comma separated list of files to be distributed with the job.
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