/**
* Licensed to Cloudera, Inc. under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. Cloudera, Inc. 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 com.cloudera.flume;
import java.io.File;
import java.io.IOException;
import org.junit.Assert;
import org.junit.Test;
import com.cloudera.flume.core.EventUtil;
import com.cloudera.flume.handlers.debug.MemorySinkSource;
import com.cloudera.flume.handlers.debug.TextFileSource;
import com.cloudera.flume.reporter.builder.MultiGrepReporterBuilder;
import com.cloudera.flume.reporter.histogram.MultiGrepReporterSink;
import com.cloudera.util.Benchmark;
import com.cloudera.util.Histogram;
/**
* This set of performance tests isolate the system from I/O so so we can
* measure the overhead of the actual reporting machinery.
*
* This crashes with OOME's .. What is wrong!?
*/
public class PerfGrepReportSinks implements ExamplePerfData {
@Test
public void testHadoopGrep() throws IOException {
Benchmark b = new Benchmark("hadoop_greps");
b.mark("begin");
MultiGrepReporterBuilder bld = new MultiGrepReporterBuilder(HADOOP_GREP);
MultiGrepReporterSink<String> snk = bld.load().iterator().next();
snk.open();
b.mark("filters_loaded", new File(HADOOP_GREP).getName());
TextFileSource txt = new TextFileSource(HADOOP_DATA[0]);
txt.open();
MemorySinkSource mem = new MemorySinkSource();
mem.open();
EventUtil.dumpAll(txt, mem);
b.mark("disk_loaded");
EventUtil.dumpAll(mem, snk);
b.mark(snk.getName() + " done");
Histogram<String> histo = snk.getHistogram();
System.out.println(histo);
// from grep | wc
Assert.assertEquals(230659, histo.get("NullPointerException"));
Assert.assertEquals(2916, histo.get("ConnectException"));
Assert.assertEquals(230663, histo.get("Lost tracker"));
Assert.assertEquals(166834, histo.get("mapred.TaskTracker: Resending"));
b.done();
}
}