Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/718#discussion_r13618519
--- Diff:
core/src/main/scala/org/apache/spark/deploy/history/HistoryServerArguments.scala
---
@@ -67,10 +69,29 @@ private[spark] class HistoryServerArguments(args:
Array[String]) {
private def printUsageAndExit(exitCode: Int) {
System.err.println(
- "Usage: HistoryServer [options]\n" +
- "\n" +
- "Options:\n" +
- " -d DIR, --dir DIR Location of event log files")
+ """
+ |Usage: HistoryServer [-d logDir]
+ |
+ |The preferred way to pass options is to set the configuration below
using
+ |SPARK_HISTORY_OPTS. The "-d" command line argument is avalable for
backwards
+ |compatibility, and overrides "spark.history.fs.logDirectory".
+ |
+ |History Server options are always available; additional options
depend on the provider.
+ |
+ |History Server options:
+ |
+ | spark.history.ui.port Port where server will listen for
connections (default 18080)
+ | spark.history.acls.enable Whether to enable view acls for all
applications (default false)
+ | spark.history.provider Name of history provider class
(defaults to file system-based
+ | provider)
+ |
+ |FsHistoryProvider options:
+ |
+ | spark.history.fs.logDirectory Directory where app logs are
stored (required)
--- End diff --
This is technically not required, as in the user can pass this through the
--dir option rather than through `spark.history.fs.logDirectory`.
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