| /** |
| * 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.hadoop.mapreduce; |
| |
| import java.io.IOException; |
| import java.util.Random; |
| import java.util.concurrent.TimeUnit; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.io.IntWritable; |
| import org.apache.hadoop.io.Writable; |
| import org.apache.hadoop.mapreduce.TimelineServicePerformance.PerfCounters; |
| import org.apache.hadoop.security.UserGroupInformation; |
| import org.apache.hadoop.yarn.api.records.timeline.TimelineEntity; |
| import org.apache.hadoop.yarn.api.records.timeline.TimelineEvent; |
| import org.apache.hadoop.yarn.client.api.TimelineClient; |
| |
| /** |
| * Adds simple entities with random string payload, events, metrics, and |
| * configuration. |
| */ |
| class SimpleEntityWriterV1 |
| extends org.apache.hadoop.mapreduce.Mapper |
| <IntWritable, IntWritable, Writable, Writable> { |
| private static final Log LOG = LogFactory.getLog(SimpleEntityWriterV1.class); |
| |
| public void map(IntWritable key, IntWritable val, Context context) |
| throws IOException { |
| TimelineClient tlc = TimelineClient.createTimelineClient(); |
| Configuration conf = context.getConfiguration(); |
| |
| final int kbs = conf.getInt(SimpleEntityWriterConstants.KBS_SENT, |
| SimpleEntityWriterConstants.KBS_SENT_DEFAULT); |
| |
| long totalTime = 0; |
| final int testtimes = conf.getInt(SimpleEntityWriterConstants.TEST_TIMES, |
| SimpleEntityWriterConstants.TEST_TIMES_DEFAULT); |
| final Random rand = new Random(); |
| final TaskAttemptID taskAttemptId = context.getTaskAttemptID(); |
| final char[] payLoad = new char[kbs * 1024]; |
| |
| for (int i = 0; i < testtimes; i++) { |
| // Generate a fixed length random payload |
| for (int xx = 0; xx < kbs * 1024; xx++) { |
| int alphaNumIdx = |
| rand.nextInt(SimpleEntityWriterConstants.ALPHA_NUMS.length); |
| payLoad[xx] = SimpleEntityWriterConstants.ALPHA_NUMS[alphaNumIdx]; |
| } |
| String entId = taskAttemptId + "_" + Integer.toString(i); |
| final TimelineEntity entity = new TimelineEntity(); |
| entity.setEntityId(entId); |
| entity.setEntityType("FOO_ATTEMPT"); |
| entity.addOtherInfo("PERF_TEST", payLoad); |
| // add an event |
| TimelineEvent event = new TimelineEvent(); |
| event.setTimestamp(System.currentTimeMillis()); |
| event.setEventType("foo_event"); |
| entity.addEvent(event); |
| |
| // use the current user for this purpose |
| UserGroupInformation ugi = UserGroupInformation.getCurrentUser(); |
| long startWrite = System.nanoTime(); |
| try { |
| tlc.putEntities(entity); |
| } catch (Exception e) { |
| context.getCounter(PerfCounters.TIMELINE_SERVICE_WRITE_FAILURES). |
| increment(1); |
| LOG.error("writing to the timeline service failed", e); |
| } |
| long endWrite = System.nanoTime(); |
| totalTime += TimeUnit.NANOSECONDS.toMillis(endWrite-startWrite); |
| } |
| LOG.info("wrote " + testtimes + " entities (" + kbs*testtimes + |
| " kB) in " + totalTime + " ms"); |
| context.getCounter(PerfCounters.TIMELINE_SERVICE_WRITE_TIME). |
| increment(totalTime); |
| context.getCounter(PerfCounters.TIMELINE_SERVICE_WRITE_COUNTER). |
| increment(testtimes); |
| context.getCounter(PerfCounters.TIMELINE_SERVICE_WRITE_KBS). |
| increment(kbs*testtimes); |
| } |
| } |