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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.spark.deploy.history
import org.apache.spark.SparkConf
import org.apache.spark.util.Utils
/**
* Command-line parser for the master.
*/
private[spark] class HistoryServerArguments(conf: SparkConf, args: Array[String]) {
private var logDir: String = null
parse(args.toList)
private def parse(args: List[String]): Unit = {
args match {
case ("--dir" | "-d") :: value :: tail =>
logDir = value
parse(tail)
case ("--help" | "-h") :: tail =>
printUsageAndExit(0)
case Nil =>
case _ =>
printUsageAndExit(1)
}
if (logDir != null) {
conf.set("spark.history.fs.logDirectory", logDir)
}
}
private def printUsageAndExit(exitCode: Int) {
System.err.println(
"""
|Usage: HistoryServer
|
|Configuration options can be set by setting the corresponding JVM system property.
|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)
| spark.history.retainedApplications Max number of application UIs to keep loaded in memory
| (default 50)
|FsHistoryProvider options:
|
| spark.history.fs.logDirectory Directory where app logs are stored (required)
| spark.history.fs.updateInterval How often to reload log data from storage (in seconds,
| default 10)
|""".stripMargin)
System.exit(exitCode)
}
}
|