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* Licensed to the Apache Software Foundation (ASF) under one
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* 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,
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* See the License for the specific language governing permissions and
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package org.apache.hadoop.chukwa.datacollection.adaptor.filetailer;
import java.io.*;
import junit.framework.TestCase;
import org.apache.hadoop.chukwa.conf.ChukwaConfiguration;
import java.util.Map;
import java.util.Iterator;
import org.apache.hadoop.chukwa.Chunk;
import org.apache.hadoop.chukwa.datacollection.adaptor.*;
import org.apache.hadoop.chukwa.datacollection.agent.ChukwaAgent;
import org.apache.hadoop.chukwa.datacollection.controller.ChukwaAgentController;
import org.apache.hadoop.chukwa.datacollection.connector.ChunkCatcherConnector;
import org.apache.hadoop.conf.Configuration;
import static org.apache.hadoop.chukwa.util.TempFileUtil.*;
public class TestFileTailingAdaptors extends TestCase {
ChunkCatcherConnector chunks;
Configuration conf = new Configuration();
File baseDir, testFile;
public TestFileTailingAdaptors() throws IOException {
chunks = new ChunkCatcherConnector();
chunks.start();
baseDir = new File(System.getProperty("test.build.data", "/tmp"));
conf.set("chukwaAgent.checkpoint.dir", baseDir.getCanonicalPath());
conf.setBoolean("chukwaAgent.checkpoint.enabled", false);
conf.setInt("chukwaAgent.adaptor.context.switch.time", 100);
conf.set("chukwaAgent.control.port", "0");
testFile = makeTestFile("chukwaCrSepTest", 80,baseDir);
}
public void testCrSepAdaptor() throws IOException, InterruptedException,
ChukwaAgent.AlreadyRunningException {
ChukwaAgent agent = new ChukwaAgent(conf);
// Remove any adaptor left over from previous run
// sleep for some time to make sure we don't get chunk from existing streams
Thread.sleep(5000);
assertEquals(0, agent.adaptorCount());
String adaptorId = agent
.processAddCommand("add org.apache.hadoop.chukwa.datacollection.adaptor.filetailer.CharFileTailingAdaptorUTF8"
+ " lines " + testFile + " 0");
assertNotNull(adaptorId);
assertEquals(1, agent.adaptorCount());
System.out.println("getting a chunk...");
Chunk c = chunks.waitForAChunk();
System.out.println("got chunk");
while (!c.getDataType().equals("lines")) {
c = chunks.waitForAChunk();
}
assertTrue(c.getSeqID() == testFile.length());
assertTrue(c.getRecordOffsets().length == 80);
int recStart = 0;
for (int rec = 0; rec < c.getRecordOffsets().length; ++rec) {
String record = new String(c.getData(), recStart,
c.getRecordOffsets()[rec] - recStart + 1);
assertTrue(record.equals(rec + " abcdefghijklmnopqrstuvwxyz\n"));
recStart = c.getRecordOffsets()[rec] + 1;
}
assertTrue(c.getDataType().equals("lines"));
agent.stopAdaptor(adaptorId, false);
agent.shutdown();
Thread.sleep(2000);
}
public void testRepeatedlyOnBigFile() throws IOException,
ChukwaAgent.AlreadyRunningException, InterruptedException {
int tests = 10; //SHOULD SET HIGHER AND WATCH WITH lsof to find leaks
ChukwaAgent agent = new ChukwaAgent(conf);
for(int i=0; i < tests; ++i) {
if(i % 100 == 0)
System.out.println("buzzed " + i + " times");
assertEquals(0, agent.adaptorCount());
agent.processAddCommand("add adaptor_test = filetailer.FileTailingAdaptor raw " +testFile.getCanonicalPath() + " 0");
assertEquals(1, agent.adaptorCount());
Chunk c = chunks.waitForAChunk();
String dat = new String(c.getData());
assertTrue(dat.startsWith("0 abcdefghijklmnopqrstuvwxyz"));
assertTrue(dat.endsWith("9 abcdefghijklmnopqrstuvwxyz\n"));
assertTrue(c.getDataType().equals("raw"));
if(agent.adaptorCount() > 0)
agent.stopAdaptor("adaptor_test", false);
}
agent.shutdown();
}
public void testOffsetInAdaptorName() throws IOException, ChukwaAgent.AlreadyRunningException,
InterruptedException{
File testFile = makeTestFile("foo", 120,baseDir);
ChukwaAgent agent = new ChukwaAgent(conf);
assertEquals(0, agent.adaptorCount());
agent.processAddCommand("add test = filetailer.FileTailingAdaptor raw " +testFile.getCanonicalPath() + " 0");
assertEquals(1, agent.adaptorCount());
Thread.sleep(2000);
agent.processAddCommand("add test = filetailer.FileTailingAdaptor raw " +testFile.getCanonicalPath() + " 0");
assertEquals(1, agent.adaptorCount());
chunks.clear();
agent.shutdown();
}
/**
* Test that LWFTAdaptor updates lastSlurpTime so that FileTailingAdaptor
* does not trigger an infinite loop and that slurp() is not called by
* FileTailingAdaptor if file is not updated (see CHUKWA-668)
* @throws IOException
* @throws ChukwaAgent.AlreadyRunningException
* @throws InterruptedException
*/
public void testSlurpTimeUpdated() throws IOException, ChukwaAgent.AlreadyRunningException,
InterruptedException{
ChukwaAgent agent = new ChukwaAgent(conf);
File testFile = makeTestFile("fooSlurp", 0,baseDir);
long startTime = System.currentTimeMillis();
String adaptorId = agent.processAddCommand("add adaptor_test =" +
"filetailer.FileTailingAdaptor slurp " +testFile.getCanonicalPath() + " 0");
FileTailingAdaptor fta = (FileTailingAdaptor)agent.getAdaptor( adaptorId);
Thread.sleep(500);
long initializedSlurpTimeValue = fta.lastSlurpTime;
assertTrue( initializedSlurpTimeValue > startTime); // initialized to current time
makeTestFile("fooSlurp", 2,baseDir);
Chunk c = chunks.waitForAChunk();
Thread.sleep(2000);
// lastSlurpTime has been updated because a slurp was done
long secondSlurpTimeValue = fta.lastSlurpTime;
assertTrue( secondSlurpTimeValue > initializedSlurpTimeValue);
assertEquals( fta.fileReadOffset, c.getData().length);
assertEquals( fta.fileReadOffset, fta.reader.length());
Thread.sleep(2000);
// ensure we don't try to slurp if file is not updated
assertEquals( fta.lastSlurpTime, secondSlurpTimeValue);
if(agent.adaptorCount() > 0)
agent.stopAdaptor("adaptor_test", false);
agent.shutdown();
}
}