-
Notifications
You must be signed in to change notification settings - Fork 28.2k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
[SPARK-29032][CORE] Simplify Prometheus support by adding PrometheusS…
…ervlet
- Loading branch information
1 parent
962e330
commit 65cf440
Showing
3 changed files
with
132 additions
and
2 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
116 changes: 116 additions & 0 deletions
116
core/src/main/scala/org/apache/spark/metrics/sink/PrometheusServlet.scala
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,116 @@ | ||
| /* | ||
| * 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.Properties | ||
| import javax.servlet.http.HttpServletRequest | ||
|
|
||
| import com.codahale.metrics.MetricRegistry | ||
| import org.eclipse.jetty.servlet.ServletContextHandler | ||
|
|
||
| import org.apache.spark.{SecurityManager, SparkConf} | ||
| import org.apache.spark.ui.JettyUtils._ | ||
|
|
||
| private[spark] class PrometheusServlet( | ||
| val property: Properties, | ||
| val registry: MetricRegistry, | ||
| securityMgr: SecurityManager) | ||
| extends Sink { | ||
|
|
||
| val SERVLET_KEY_PATH = "path" | ||
|
|
||
| val servletPath = property.getProperty(SERVLET_KEY_PATH) | ||
|
|
||
| def getHandlers(conf: SparkConf): Array[ServletContextHandler] = { | ||
| Array[ServletContextHandler]( | ||
| createServletHandler(servletPath, | ||
| new ServletParams(request => getMetricsSnapshot(request), "text/plain;charset=UTF-8"), conf) | ||
| ) | ||
| } | ||
|
|
||
| // The following aims to be consistent with /metrics/json result in terms of item ordering | ||
| // and with Spark JMX Sink + Prometheus JMX Converter result in terms of key/value string format. | ||
| def getMetricsSnapshot(request: HttpServletRequest): String = { | ||
| import scala.collection.JavaConverters._ | ||
|
|
||
| val sb = new StringBuilder() | ||
| registry.getGauges.asScala.foreach { case (k, v) => | ||
| if (!v.getValue.isInstanceOf[String]) { | ||
| sb.append(s"${normalizeKey(k)}Value ${v.getValue}\n") | ||
| } | ||
| } | ||
| registry.getCounters.asScala.foreach { case (k, v) => | ||
| sb.append(s"${normalizeKey(k)}Count ${v.getCount}\n") | ||
| } | ||
| registry.getHistograms.asScala.foreach { case (k, h) => | ||
| val snapshot = h.getSnapshot | ||
| val prefix = normalizeKey(k) | ||
| sb.append(prefix + "Count " + h.getCount + "\n") | ||
| sb.append(prefix + "Max " + snapshot.getMax + "\n") | ||
| sb.append(prefix + "Mean " + snapshot.getMax + "\n") | ||
| sb.append(prefix + "Min " + snapshot.getMin + "\n") | ||
| sb.append(prefix + "50thPercentile " + snapshot.getMedian + "\n") | ||
| sb.append(prefix + "75thPercentile " + snapshot.get75thPercentile + "\n") | ||
| sb.append(prefix + "95thPercentile " + snapshot.get95thPercentile + "\n") | ||
| sb.append(prefix + "98thPercentile " + snapshot.get98thPercentile + "\n") | ||
| sb.append(prefix + "99thPercentile " + snapshot.get99thPercentile + "\n") | ||
| sb.append(prefix + "999thPercentile " + snapshot.get999thPercentile + "\n") | ||
| sb.append(prefix + "StdDev " + snapshot.getStdDev + "\n") | ||
| } | ||
| registry.getMeters.entrySet.iterator.asScala.foreach { kv => | ||
| val prefix = normalizeKey(kv.getKey) | ||
| val meter = kv.getValue | ||
| sb.append(prefix + "Count " + meter.getCount + "\n") | ||
| sb.append(prefix + "MeanRate " + meter.getMeanRate + "\n") | ||
| sb.append(prefix + "OneMinuteRate " + meter.getOneMinuteRate + "\n") | ||
| sb.append(prefix + "FiveMinuteRate " + meter.getFiveMinuteRate + "\n") | ||
| sb.append(prefix + "FifteenMinuteRate " + meter.getFifteenMinuteRate + "\n") | ||
| } | ||
| registry.getTimers.entrySet.iterator.asScala.foreach { kv => | ||
| val prefix = normalizeKey(kv.getKey) | ||
| val timer = kv.getValue | ||
| val snapshot = timer.getSnapshot | ||
| sb.append(prefix + "Count " + timer.getCount + "\n") | ||
| sb.append(prefix + "Max " + snapshot.getMax + "\n") | ||
| sb.append(prefix + "Mean " + snapshot.getMax + "\n") | ||
| sb.append(prefix + "Min " + snapshot.getMin + "\n") | ||
| sb.append(prefix + "50thPercentile " + snapshot.getMedian + "\n") | ||
| sb.append(prefix + "75thPercentile " + snapshot.get75thPercentile + "\n") | ||
| sb.append(prefix + "95thPercentile " + snapshot.get95thPercentile + "\n") | ||
| sb.append(prefix + "98thPercentile " + snapshot.get98thPercentile + "\n") | ||
| sb.append(prefix + "99thPercentile " + snapshot.get99thPercentile + "\n") | ||
| sb.append(prefix + "999thPercentile " + snapshot.get999thPercentile + "\n") | ||
| sb.append(prefix + "StdDev " + snapshot.getStdDev + "\n") | ||
| sb.append(prefix + "FifteenMinuteRate " + timer.getFifteenMinuteRate + "\n") | ||
| sb.append(prefix + "FiveMinuteRate " + timer.getFiveMinuteRate + "\n") | ||
| sb.append(prefix + "OneMinuteRate " + timer.getOneMinuteRate + "\n") | ||
| sb.append(prefix + "MeanRate " + timer.getMeanRate + "\n") | ||
| } | ||
| sb.toString() | ||
| } | ||
|
|
||
| private def normalizeKey(key: String): String = { | ||
| s"metrics_${key.replaceAll("[^a-zA-Z0-9]", "_")}_" | ||
| } | ||
|
|
||
| override def start() { } | ||
|
|
||
| override def stop() { } | ||
|
|
||
| override def report() { } | ||
| } |