Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/4505#discussion_r25010786
--- Diff:
core/src/main/scala/org/apache/spark/deploy/worker/WorkerArguments.scala ---
@@ -23,46 +23,56 @@ import org.apache.spark.util.{IntParam, MemoryParam,
Utils}
import org.apache.spark.SparkConf
/**
- * Command-line parser for the worker.
+ * Arguments parser for the worker.
*/
private[spark] class WorkerArguments(args: Array[String], conf: SparkConf)
{
- var host = Utils.localHostName()
- var port = 0
- var webUiPort = 8081
- var cores = inferDefaultCores()
- var memory = inferDefaultMemory()
+ var host: String = null
+ var port: Int = -1
+ var webUiPort: Int = -1
+ var cores: Int = -1
+ var memory: Int = -1
--- End diff --
you don't need to change the defaults here if you do the following down
there:
```
port = sys.env.get(...)
.orElse(conf.getOption(...))
.getOrElse(port)
```
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