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https://issues.apache.org/jira/browse/SPARK-15781?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15323235#comment-15323235
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Jonathan Taws commented on SPARK-15781:
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What are our nextsteps on this ? CC Andrew or someone who knows standalone ?
> Misleading deprecated property in standalone cluster configuration
> documentation
> --------------------------------------------------------------------------------
>
> Key: SPARK-15781
> URL: https://issues.apache.org/jira/browse/SPARK-15781
> Project: Spark
> Issue Type: Documentation
> Components: Documentation
> Affects Versions: 1.6.1
> Reporter: Jonathan Taws
> Priority: Minor
>
> I am unsure if this is regarded as an issue or not, but in the
> [latest|http://spark.apache.org/docs/latest/spark-standalone.html#cluster-launch-scripts]
> documentation for the configuration to launch Spark in stand-alone cluster
> mode, the following property is documented :
> |SPARK_WORKER_INSTANCES| Number of worker instances to run on each
> machine (default: 1). You can make this more than 1 if you have have very
> large machines and would like multiple Spark worker processes. If you do set
> this, make sure to also set SPARK_WORKER_CORES explicitly to limit the cores
> per worker, or else each worker will try to use all the cores.|
> However, once I launch Spark with the spark-submit utility and the property
> {{SPARK_WORKER_INSTANCES}} set in my spark-env.sh file, I get the following
> deprecated warning :
> {code}
> 16/06/06 16:38:28 WARN SparkConf:
> SPARK_WORKER_INSTANCES was detected (set to '4').
> This is deprecated in Spark 1.0+.
> Please instead use:
> - ./spark-submit with --num-executors to specify the number of executors
> - Or set SPARK_EXECUTOR_INSTANCES
> - spark.executor.instances to configure the number of instances in the spark
> config.
> {code}
> Is this regarded as normal practice to have deprecated fields documented in
> the documentation ?
> I would have preferred to directly know about the --num-executors property
> than to have to submit my application and find a deprecated warning.
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