spark GangliaSink 源码

  • 2022-10-20
  • 浏览 (348)

spark GangliaSink 代码

文件路径:/connector/spark-ganglia-lgpl/src/main/scala/org/apache/spark/metrics/sink/GangliaSink.scala

/*
 * 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.metrics.sink

import java.util.{Locale, Properties}
import java.util.concurrent.TimeUnit

import com.codahale.metrics.MetricRegistry
import com.codahale.metrics.ganglia.GangliaReporter
import info.ganglia.gmetric4j.gmetric.GMetric
import info.ganglia.gmetric4j.gmetric.GMetric.UDPAddressingMode

import org.apache.spark.metrics.MetricsSystem

class GangliaSink(
    val property: Properties, val registry: MetricRegistry) extends Sink {
  val GANGLIA_KEY_PERIOD = "period"
  val GANGLIA_DEFAULT_PERIOD = 10

  val GANGLIA_KEY_UNIT = "unit"
  val GANGLIA_DEFAULT_UNIT: TimeUnit = TimeUnit.SECONDS

  val GANGLIA_KEY_MODE = "mode"
  val GANGLIA_DEFAULT_MODE: UDPAddressingMode = GMetric.UDPAddressingMode.MULTICAST

  // TTL for multicast messages. If listeners are X hops away in network, must be at least X.
  val GANGLIA_KEY_TTL = "ttl"
  val GANGLIA_DEFAULT_TTL = 1

  val GANGLIA_KEY_HOST = "host"
  val GANGLIA_KEY_PORT = "port"

  val GANGLIA_KEY_DMAX = "dmax"
  val GANGLIA_DEFAULT_DMAX = 0

  def propertyToOption(prop: String): Option[String] = Option(property.getProperty(prop))

  if (!propertyToOption(GANGLIA_KEY_HOST).isDefined) {
    throw new Exception("Ganglia sink requires 'host' property.")
  }

  if (!propertyToOption(GANGLIA_KEY_PORT).isDefined) {
    throw new Exception("Ganglia sink requires 'port' property.")
  }

  val host = propertyToOption(GANGLIA_KEY_HOST).get
  val port = propertyToOption(GANGLIA_KEY_PORT).get.toInt
  val ttl = propertyToOption(GANGLIA_KEY_TTL).map(_.toInt).getOrElse(GANGLIA_DEFAULT_TTL)
  val dmax = propertyToOption(GANGLIA_KEY_DMAX).map(_.toInt).getOrElse(GANGLIA_DEFAULT_DMAX)
  val mode: UDPAddressingMode = propertyToOption(GANGLIA_KEY_MODE)
    .map(u => GMetric.UDPAddressingMode.valueOf(u.toUpperCase(Locale.ROOT)))
    .getOrElse(GANGLIA_DEFAULT_MODE)
  val pollPeriod = propertyToOption(GANGLIA_KEY_PERIOD).map(_.toInt)
    .getOrElse(GANGLIA_DEFAULT_PERIOD)
  val pollUnit: TimeUnit = propertyToOption(GANGLIA_KEY_UNIT)
    .map(u => TimeUnit.valueOf(u.toUpperCase(Locale.ROOT)))
    .getOrElse(GANGLIA_DEFAULT_UNIT)

  MetricsSystem.checkMinimalPollingPeriod(pollUnit, pollPeriod)

  val ganglia = new GMetric(host, port, mode, ttl)
  val reporter: GangliaReporter = GangliaReporter.forRegistry(registry)
      .convertDurationsTo(TimeUnit.MILLISECONDS)
      .convertRatesTo(TimeUnit.SECONDS)
      .withDMax(dmax)
      .build(ganglia)

  override def start(): Unit = {
    reporter.start(pollPeriod, pollUnit)
  }

  override def stop(): Unit = {
    reporter.stop()
  }

  override def report(): Unit = {
    reporter.report()
  }
}

相关信息

spark 源码目录

相关文章

spark ArrayWrappers 源码

spark InMemoryStore 源码

spark KVIndex 源码

spark KVStore 源码

spark KVStoreIterator 源码

spark KVStoreSerializer 源码

spark KVStoreView 源码

spark KVTypeInfo 源码

spark LevelDB 源码

spark LevelDBIterator 源码

0  赞