/**
* 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.Test;
import com.cloudera.flume.core.EventUtil;
import com.cloudera.flume.handlers.debug.Log4jTextFileSource;
import com.cloudera.flume.handlers.debug.MemorySinkSource;
import com.cloudera.flume.handlers.debug.TextFileSource;
import com.cloudera.flume.handlers.hdfs.SeqfileEventSink;
import com.cloudera.flume.handlers.hdfs.SeqfileEventSource;
import com.cloudera.util.Benchmark;
/**
* This performance test tests the throughput of various disk reading and
* writing sources and sinks.
*/
public class PerfDiskIO implements ExamplePerfData {
@Test
public void testWrite() throws IOException, InterruptedException {
Benchmark b = new Benchmark("seqfile write");
b.mark("begin");
TextFileSource txt = new TextFileSource(HADOOP_DATA[0]);
txt.open();
MemorySinkSource mem = new MemorySinkSource();
mem.open();
EventUtil.dumpAll(txt, mem);
txt.close();
b.mark("disk_loaded");
File tmp = File.createTempFile("test", "tmp");
tmp.deleteOnExit();
SeqfileEventSink sink = new SeqfileEventSink(tmp);
sink.open();
b.mark("receiver_started");
EventUtil.dumpAll(mem, sink);
b.mark("seqfile_disk_write");
sink.close();
b.mark("seqfile size", tmp.length());
b.done();
// //////// second phase using the file written in previous phase.
Benchmark b2 = new Benchmark("seqfile_disk_read");
b2.mark("begin");
SeqfileEventSource seq = new SeqfileEventSource(tmp.getAbsolutePath());
seq.open();
MemorySinkSource mem2 = new MemorySinkSource();
EventUtil.dumpAll(seq, mem2);
seq.close();
b2.mark("seqfile_loaded");
b2.done();
}
@Test
public void testReadFormat() throws IOException, InterruptedException {
Benchmark b = new Benchmark("log4j format read");
b.mark("begin");
Log4jTextFileSource txt = new Log4jTextFileSource(HADOOP_DATA[0]);
txt.open();
MemorySinkSource mem = new MemorySinkSource();
mem.open();
EventUtil.dumpAll(txt, mem);
txt.close();
b.mark("log4j_disk_loaded");
b.done();
}
}