Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/7657#discussion_r36262748
--- Diff: core/src/main/scala/org/apache/spark/SparkConf.scala ---
@@ -469,6 +469,23 @@ class SparkConf(loadDefaults: Boolean) extends
Cloneable with Logging {
}
}
}
+
+ sys.env.get("SPARK_WORKER_INSTANCES").foreach { value =>
+ val warning =
+ s"""
+ |SPARK_WORKER_INSTANCES was detected (set to '$value').
+ |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.
+ """.stripMargin
+ logWarning(warning)
+
+ set("spark.executor.instances", value.toString())
+
--- End diff --
nit: stray empty line
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