Github user jerryshao commented on a diff in the pull request:
https://github.com/apache/spark/pull/9518#discussion_r124689398
--- Diff:
core/src/main/scala/org/apache/spark/metrics/sink/StatsdReporter.scala ---
@@ -0,0 +1,167 @@
+/*
+ * 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.io.IOException
+import java.net.{DatagramPacket, DatagramSocket, InetSocketAddress}
+import java.nio.charset.StandardCharsets.UTF_8
+import java.util.SortedMap
+import java.util.concurrent.TimeUnit
+
+import scala.collection.JavaConverters._
+import scala.util.{Failure, Success, Try}
+
+import com.codahale.metrics._
+import org.apache.hadoop.net.NetUtils
+
+import org.apache.spark.internal.Logging
+
+/**
+ * @see <a
href="https://github.com/etsy/statsd/blob/master/docs/metric_types.md";>
+ * StatsD metric types</a>
+ */
+private[spark] object StatsdMetricType {
+ val COUNTER = "c"
+ val GAUGE = "g"
+ val TIMER = "ms"
+ val Set = "s"
+}
+
+private[spark] class StatsdReporter(
+ registry: MetricRegistry,
+ host: String = "127.0.0.1",
+ port: Int = 8125,
+ prefix: String = "",
+ filter: MetricFilter = MetricFilter.ALL,
+ rateUnit: TimeUnit = TimeUnit.SECONDS,
+ durationUnit: TimeUnit = TimeUnit.MILLISECONDS)
+ extends ScheduledReporter(registry, "statsd-reporter", filter, rateUnit,
durationUnit)
+ with Logging {
+
+ import StatsdMetricType._
+
+ private val address = new InetSocketAddress(host, port)
+ private val whitespace = "[\\s]+".r
+
+ override def report(
+ gauges: SortedMap[String, Gauge[_]],
+ counters: SortedMap[String, Counter],
+ histograms: SortedMap[String, Histogram],
+ meters: SortedMap[String, Meter],
+ timers: SortedMap[String, Timer]): Unit =
+ Try(new DatagramSocket) match {
+ case Failure(ioe: IOException) => logWarning("StatsD datagram socket
construction failed",
+ NetUtils.wrapException(host, port, NetUtils.getHostname(), 0, ioe))
+ case Failure(e) => logWarning("StatsD datagram socket construction
failed", e)
+ case Success(s) =>
+ implicit val socket = s
+ val localAddress =
Try(socket.getLocalAddress).map(_.getHostAddress).getOrElse(null)
+ val localPort = socket.getLocalPort
+ Try {
+ gauges.entrySet.asScala.foreach(e => reportGauge(e.getKey,
e.getValue))
+ counters.entrySet.asScala.foreach(e => reportCounter(e.getKey,
e.getValue))
+ histograms.entrySet.asScala.foreach(e =>
reportHistogram(e.getKey, e.getValue))
+ meters.entrySet.asScala.foreach(e => reportMetered(e.getKey,
e.getValue))
+ timers.entrySet.asScala.foreach(e => reportTimer(e.getKey,
e.getValue))
+ } recover {
+ case ioe: IOException =>
+ logDebug(s"Unable to send packets to StatsD",
NetUtils.wrapException(
+ address.getHostString, address.getPort, localAddress,
localPort, ioe))
+ case e: Throwable => logDebug(s"Unable to send packets to StatsD
at '$host:$port'", e)
+ }
+ Try(socket.close()) recover {
+ case ioe: IOException =>
+ logDebug("Error when close socket to StatsD",
NetUtils.wrapException(
+ address.getHostString, address.getPort, localAddress,
localPort, ioe))
+ case e: Throwable => logDebug("Error when close socket to
StatsD", e)
+ }
+ }
+
+ private def reportGauge(name: String, gauge: Gauge[_])(implicit socket:
DatagramSocket) =
--- End diff --
Can you please add return type to the method here and below?
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