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MAPREDUCE-6363. [NNBench] Lease mismatch error when running with multiple mappers. Contributed by Vlad Sharanhovich and Bibin A Chundatt.

This commit is contained in:
Akira Ajisaka 2016-01-14 10:40:22 +09:00
parent 8315582c4f
commit 7b0964f354
2 changed files with 73 additions and 66 deletions
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3
hadoop-mapreduce-project/CHANGES.txt
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@ -1009,6 +1009,9 @@ Release 2.6.4 - UNRELEASED
TaskAttemptImpl#sendJHStartEventForAssignedFailTask (Bibin A Chundatt via
jlowe)
MAPREDUCE-6363. [NNBench] Lease mismatch error when running with multiple
mappers. (Vlad Sharanhovich and Bibin A Chundatt via aajisaka)
Release 2.6.3 - 2015-12-17
INCOMPATIBLE CHANGES

92
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/hdfs/NNBench.java
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@ -18,45 +18,42 @@
package org.apache.hadoop.hdfs;
import java.io.IOException;
import java.util.Date;
import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.io.File;
import java.io.BufferedReader;
import java.util.StringTokenizer;
import java.net.InetAddress;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Iterator;
import java.util.StringTokenizer;
import org.apache.commons.logging.LogFactory;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.conf.Configured;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.FSDataOutputStream;
import org.apache.hadoop.fs.FSDataInputStream;
import org.apache.hadoop.fs.FSDataOutputStream;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.io.SequenceFile.CompressionType;
import org.apache.hadoop.io.SequenceFile;
import org.apache.hadoop.io.SequenceFile.CompressionType;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapred.FileInputFormat;
import org.apache.hadoop.mapred.FileOutputFormat;
import org.apache.hadoop.mapred.Mapper;
import org.apache.hadoop.mapred.SequenceFileInputFormat;
import org.apache.hadoop.mapred.JobClient;
import org.apache.hadoop.mapred.MapReduceBase;
import org.apache.hadoop.mapred.Reporter;
import org.apache.hadoop.mapred.OutputCollector;
import org.apache.hadoop.mapred.JobConf;
import org.apache.hadoop.mapred.MapReduceBase;
import org.apache.hadoop.mapred.Mapper;
import org.apache.hadoop.mapred.OutputCollector;
import org.apache.hadoop.mapred.Reducer;
import org.apache.hadoop.mapred.Reporter;
import org.apache.hadoop.mapred.SequenceFileInputFormat;
/**
* This program executes a specified operation that applies load to
@ -149,7 +146,7 @@ public class NNBench {
try {
writer = SequenceFile.createWriter(tempFS, config, filePath, Text.class,
LongWritable.class, CompressionType.NONE);
writer.append(new Text(strFileName), new LongWritable(0l));
writer.append(new Text(strFileName), new LongWritable(i));
} finally {
if (writer != null) {
writer.close();
@ -309,14 +306,7 @@ public class NNBench {
*/
private static void analyzeResults() throws IOException {
final FileSystem fs = FileSystem.get(config);
Path reduceFile = new Path(new Path(baseDir, OUTPUT_DIR_NAME),
"part-00000");
DataInputStream in;
in = new DataInputStream(fs.open(reduceFile));
BufferedReader lines;
lines = new BufferedReader(new InputStreamReader(in));
Path reduceDir = new Path(baseDir, OUTPUT_DIR_NAME);
long totalTimeAL1 = 0l;
long totalTimeAL2 = 0l;
@ -328,10 +318,15 @@ public class NNBench {
long mapStartTimeTPmS = 0l;
long mapEndTimeTPmS = 0l;
String resultTPSLine1 = null;
String resultTPSLine2 = null;
String resultALLine1 = null;
String resultALLine2 = null;
FileStatus[] fss = fs.listStatus(reduceDir);
for (FileStatus status : fss) {
Path reduceFile = status.getPath();
DataInputStream in;
in = new DataInputStream(fs.open(reduceFile));
BufferedReader lines;
lines = new BufferedReader(new InputStreamReader(in));
String line;
while ((line = lines.readLine()) != null) {
@ -355,6 +350,7 @@ public class NNBench {
mapEndTimeTPmS = Long.parseLong(tokens.nextToken());
}
}
}
// Average latency is the average time to perform 'n' number of
// operations, n being the number of files
@ -377,6 +373,11 @@ public class NNBench {
(double) successfulFileOps :
(double) totalTimeTPmS / successfulFileOps;
String resultTPSLine1 = null;
String resultTPSLine2 = null;
String resultALLine1 = null;
String resultALLine2 = null;
if (operation.equals(OP_CREATE_WRITE)) {
// For create/write/close, it is treated as two transactions,
// since a file create from a client perspective involves create and close
@ -699,18 +700,21 @@ public class NNBench {
successfulFileOps = 0l;
if (barrier()) {
String fileName = "file_" + value;
if (op.equals(OP_CREATE_WRITE)) {
startTimeTPmS = System.currentTimeMillis();
doCreateWriteOp("file_" + hostName + "_", reporter);
doCreateWriteOp(fileName, reporter);
} else if (op.equals(OP_OPEN_READ)) {
startTimeTPmS = System.currentTimeMillis();
doOpenReadOp("file_" + hostName + "_", reporter);
doOpenReadOp(fileName, reporter);
} else if (op.equals(OP_RENAME)) {
startTimeTPmS = System.currentTimeMillis();
doRenameOp("file_" + hostName + "_", reporter);
doRenameOp(fileName, reporter);
} else if (op.equals(OP_DELETE)) {
startTimeTPmS = System.currentTimeMillis();
doDeleteOp("file_" + hostName + "_", reporter);
} else {
throw new IllegalArgumentException(
"unsupported operation [" + op + "]");
}
endTimeTPms = System.currentTimeMillis();
@ -777,9 +781,8 @@ public class NNBench {
reporter.setStatus("Finish "+ l + " files");
} catch (IOException e) {
LOG.info("Exception recorded in op: " +
"Create/Write/Close");
LOG.error("Exception recorded in op: Create/Write/Close, "
+ "file: \"" + filePath + "\"", e);
numOfExceptions++;
}
}
@ -822,7 +825,8 @@ public class NNBench {
reporter.setStatus("Finish "+ l + " files");
} catch (IOException e) {
LOG.info("Exception recorded in op: OpenRead " + e);
LOG.error("Exception recorded in op: OpenRead, " + "file: \""
+ filePath + "\"", e);
numOfExceptions++;
}
}
@ -856,8 +860,8 @@ public class NNBench {
reporter.setStatus("Finish "+ l + " files");
} catch (IOException e) {
LOG.info("Exception recorded in op: Rename");
LOG.error("Exception recorded in op: Rename, " + "file: \""
+ filePath + "\"", e);
numOfExceptions++;
}
}
@ -889,8 +893,8 @@ public class NNBench {
reporter.setStatus("Finish "+ l + " files");
} catch (IOException e) {
LOG.info("Exception in recorded op: Delete");
LOG.error("Exception recorded in op: Delete, " + "file: \""
+ filePath + "\"", e);
numOfExceptions++;
}
}