package org.apache.hadoop.chukwa.datacollection.collector;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import org.apache.hadoop.chukwa.ChukwaArchiveKey;
import org.apache.hadoop.chukwa.ChunkImpl;
import org.apache.hadoop.chukwa.datacollection.adaptor.TestDirTailingAdaptor;
import org.apache.hadoop.chukwa.datacollection.agent.ChukwaAgent;
import org.apache.hadoop.chukwa.datacollection.collector.servlet.CommitCheckServlet;
import org.apache.hadoop.chukwa.datacollection.collector.servlet.ServletCollector;
import org.apache.hadoop.chukwa.datacollection.connector.http.HttpConnector;
import org.apache.hadoop.chukwa.datacollection.sender.RetryListOfCollectors;
import org.apache.hadoop.chukwa.datacollection.writer.SeqFileWriter;
import org.apache.hadoop.chukwa.extraction.archive.SinkArchiver;
import org.apache.hadoop.chukwa.util.ConstRateAdaptor;
import org.apache.hadoop.chukwa.util.ConstRateValidator.ByteRange;
import org.apache.hadoop.chukwa.util.ConstRateValidator.ValidatorSM;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.SequenceFile;
import org.mortbay.jetty.Server;
import junit.framework.TestCase;
public class TestFailedCollectorAck extends TestCase {
static final int PORTNO = 9993;
public void testFailureRecovery() {
try {
Configuration conf = new Configuration();
String outputDirectory = TestDelayedAcks.buildConf(conf);
SeqFileWriter.ENABLE_ROTATION_ON_CLOSE = false;
File sinkA = new File(outputDirectory, "chukwa_sink_A");
sinkA.mkdir();
File sinkB = new File(outputDirectory, "chukwa_sink_B");
sinkB.mkdir();
conf.set(CommitCheckServlet.SCANPATHS_OPT, sinkA.getCanonicalPath()
+ "," + sinkB.getCanonicalPath());
conf.set(SeqFileWriter.OUTPUT_DIR_OPT, sinkA.getCanonicalPath() );
ServletCollector collector1 = new ServletCollector(new Configuration(conf));
conf.set(SeqFileWriter.OUTPUT_DIR_OPT,sinkB.getCanonicalPath() );
ServletCollector collector2 = new ServletCollector(conf);
Server collector1_s = TestDelayedAcks.startCollectorOnPort(conf, PORTNO+1, collector1);
Server collector2_s = TestDelayedAcks.startCollectorOnPort(conf, PORTNO+2, collector2);
Thread.sleep(2000); //for collectors to start
ChukwaAgent agent = new ChukwaAgent(conf);
HttpConnector conn = new HttpConnector(agent);
RetryListOfCollectors clist = new RetryListOfCollectors(conf);
clist.add("http://localhost:"+(PORTNO+1)+"/");
clist.add("http://localhost:"+(PORTNO+2)+"/");
conn.setCollectors(clist);
conn.start();
//FIXME: somehow need to clue in commit checker which paths to check.
// Somehow need
String resp = agent.processAddCommand("add constSend = " + ConstRateAdaptor.class.getCanonicalName() +
" testData "+ TestDelayedAcks.SEND_RATE + " 12345 0");
assertTrue("constSend".equals(resp));
Thread.sleep(10 * 1000);
collector1_s.stop();
Thread.sleep(10 * 1000);
SeqFileWriter.ENABLE_ROTATION_ON_CLOSE = true;
String[] stat = agent.getAdaptorList().get("constSend").split(" ");
long bytesCommitted = Long.valueOf(stat[stat.length -1]);
assertTrue(bytesCommitted > 0);
agent.shutdown();
conn.shutdown();
Thread.sleep(2000); //for collectors to shut down
collector2_s.stop();
Thread.sleep(2000); //for collectors to shut down
checkDirs(conf, conf.get(CommitCheckServlet.SCANPATHS_OPT));
TestDirTailingAdaptor.nukeDirContents(new File(outputDirectory));
(new File(outputDirectory)).delete();
} catch(Exception e) {
e.printStackTrace();
fail(e.toString());
}
}
//returns number of dup chunks
public static long checkDirs(Configuration conf, String paths) throws IOException {
ArrayList<Path> toScan = new ArrayList<Path>();
ArrayList<ByteRange> bytes = new ArrayList<ByteRange>();
FileSystem localfs = FileSystem.getLocal(conf);
String[] paths_s = paths.split(",");
for(String s: paths_s)
if(s.length() > 1)
toScan.add(new Path(s));
for(Path p: toScan) {
FileStatus[] dataSinkFiles = localfs.listStatus(p, SinkArchiver.DATA_SINK_FILTER);
for(FileStatus fstatus: dataSinkFiles) {
if(!fstatus.getPath().getName().endsWith(".done"))
continue;
SequenceFile.Reader reader = new SequenceFile.Reader(localfs, fstatus.getPath(), conf);
ChukwaArchiveKey key = new ChukwaArchiveKey();
ChunkImpl chunk = ChunkImpl.getBlankChunk();
while (reader.next(key, chunk)) {
bytes.add(new ByteRange(chunk));
}
reader.close();
}
}
assertNotNull(bytes);
Collections.sort(bytes);
ValidatorSM sm = new ValidatorSM();
for(ByteRange b: bytes) {
String s = sm.advanceSM(b);
if(s != null)
System.out.println(s);
}
assertEquals(0, sm.missingBytes);
return sm.dupBytes;
}
}