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HADOOP-10490. TestMapFile and TestBloomMapFile leak file descriptors. Contributed by Chris Nauroth.

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git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1586570 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Chris Nauroth 2014-04-11 04:40:26 +00:00
parent c1127d19c4
commit 91ebf58904
4 changed files with 306 additions and 230 deletions
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3
hadoop-common-project/hadoop-common/CHANGES.txt
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@ -399,6 +399,9 @@ Release 2.4.1 - UNRELEASED
HADOOP-10473. TestCallQueueManager should interrupt before counting calls.
(szetszwo)
HADOOP-10490. TestMapFile and TestBloomMapFile leak file descriptors.
(cnauroth)
Release 2.4.0 - 2014-04-07
INCOMPATIBLE CHANGES

32
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/io/MapFile.java
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@ -30,6 +30,7 @@
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.IOUtils;
import org.apache.hadoop.io.SequenceFile.CompressionType;
import org.apache.hadoop.io.compress.CompressionCodec;
import org.apache.hadoop.util.Options;
@ -836,21 +837,24 @@ public static void main(String[] args) throws Exception {
Configuration conf = new Configuration();
FileSystem fs = FileSystem.getLocal(conf);
MapFile.Reader reader = new MapFile.Reader(fs, in, conf);
MapFile.Writer writer =
new MapFile.Writer(conf, fs, out,
reader.getKeyClass().asSubclass(WritableComparable.class),
reader.getValueClass());
MapFile.Reader reader = null;
MapFile.Writer writer = null;
try {
reader = new MapFile.Reader(fs, in, conf);
writer =
new MapFile.Writer(conf, fs, out,
reader.getKeyClass().asSubclass(WritableComparable.class),
reader.getValueClass());
WritableComparable key =
ReflectionUtils.newInstance(reader.getKeyClass().asSubclass(WritableComparable.class), conf);
Writable value =
ReflectionUtils.newInstance(reader.getValueClass().asSubclass(Writable.class), conf);
WritableComparable key = ReflectionUtils.newInstance(reader.getKeyClass()
.asSubclass(WritableComparable.class), conf);
Writable value = ReflectionUtils.newInstance(reader.getValueClass()
.asSubclass(Writable.class), conf);
while (reader.next(key, value)) // copy all entries
writer.append(key, value);
writer.close();
while (reader.next(key, value)) // copy all entries
writer.append(key, value);
} finally {
IOUtils.cleanup(LOG, writer, reader);
}
}
}

176
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/io/TestBloomMapFile.java
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@ -18,6 +18,8 @@
package org.apache.hadoop.io;
import static org.mockito.Mockito.*;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
@ -31,6 +33,7 @@
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.LocalFileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.IOUtils;
import org.apache.hadoop.io.SequenceFile.CompressionType;
import org.apache.hadoop.io.compress.CompressionCodec;
import org.apache.hadoop.io.compress.CompressionInputStream;
@ -63,39 +66,44 @@ public void testMembershipTest() throws Exception {
FileSystem fs = FileSystem.getLocal(conf);
Path qualifiedDirName = fs.makeQualified(TEST_DIR);
conf.setInt("io.mapfile.bloom.size", 2048);
BloomMapFile.Writer writer = new BloomMapFile.Writer(conf, fs,
qualifiedDirName.toString(), IntWritable.class, Text.class);
IntWritable key = new IntWritable();
Text value = new Text();
for (int i = 0; i < 2000; i += 2) {
key.set(i);
value.set("00" + i);
writer.append(key, value);
}
writer.close();
BloomMapFile.Reader reader = new BloomMapFile.Reader(fs,
qualifiedDirName.toString(), conf);
// check false positives rate
int falsePos = 0;
int falseNeg = 0;
for (int i = 0; i < 2000; i++) {
key.set(i);
boolean exists = reader.probablyHasKey(key);
if (i % 2 == 0) {
if (!exists)
falseNeg++;
} else {
if (exists)
falsePos++;
BloomMapFile.Writer writer = null;
BloomMapFile.Reader reader = null;
try {
writer = new BloomMapFile.Writer(conf, fs, qualifiedDirName.toString(),
IntWritable.class, Text.class);
IntWritable key = new IntWritable();
Text value = new Text();
for (int i = 0; i < 2000; i += 2) {
key.set(i);
value.set("00" + i);
writer.append(key, value);
}
writer.close();
reader = new BloomMapFile.Reader(fs, qualifiedDirName.toString(), conf);
// check false positives rate
int falsePos = 0;
int falseNeg = 0;
for (int i = 0; i < 2000; i++) {
key.set(i);
boolean exists = reader.probablyHasKey(key);
if (i % 2 == 0) {
if (!exists)
falseNeg++;
} else {
if (exists)
falsePos++;
}
}
reader.close();
fs.delete(qualifiedDirName, true);
System.out.println("False negatives: " + falseNeg);
assertEquals(0, falseNeg);
System.out.println("False positives: " + falsePos);
assertTrue(falsePos < 2);
} finally {
IOUtils.cleanup(null, writer, reader);
}
reader.close();
fs.delete(qualifiedDirName, true);
System.out.println("False negatives: " + falseNeg);
assertEquals(0, falseNeg);
System.out.println("False positives: " + falsePos);
assertTrue(falsePos < 2);
}
@SuppressWarnings("deprecation")
@ -103,23 +111,28 @@ private void checkMembershipVaryingSizedKeys(String name, List<Text> keys)
throws Exception {
FileSystem fs = FileSystem.getLocal(conf);
Path qualifiedDirName = fs.makeQualified(TEST_DIR);
BloomMapFile.Writer writer = new BloomMapFile.Writer(conf, fs,
qualifiedDirName.toString(), Text.class, NullWritable.class);
for (Text key : keys) {
writer.append(key, NullWritable.get());
}
writer.close();
BloomMapFile.Writer writer = null;
BloomMapFile.Reader reader = null;
try {
writer = new BloomMapFile.Writer(conf, fs, qualifiedDirName.toString(),
Text.class, NullWritable.class);
for (Text key : keys) {
writer.append(key, NullWritable.get());
}
writer.close();
// will check for membership in the opposite order of how keys were inserted
BloomMapFile.Reader reader = new BloomMapFile.Reader(fs,
qualifiedDirName.toString(), conf);
Collections.reverse(keys);
for (Text key : keys) {
assertTrue("False negative for existing key " + key,
// will check for membership in opposite order of how keys were inserted
reader = new BloomMapFile.Reader(fs, qualifiedDirName.toString(), conf);
Collections.reverse(keys);
for (Text key : keys) {
assertTrue("False negative for existing key " + key,
reader.probablyHasKey(key));
}
reader.close();
fs.delete(qualifiedDirName, true);
} finally {
IOUtils.cleanup(null, writer, reader);
}
reader.close();
fs.delete(qualifiedDirName, true);
}
public void testMembershipVaryingSizedKeysTest1() throws Exception {
@ -140,15 +153,19 @@ public void testMembershipVaryingSizedKeysTest2() throws Exception {
* test {@code BloomMapFile.delete()} method
*/
public void testDeleteFile() {
BloomMapFile.Writer writer = null;
try {
FileSystem fs = FileSystem.getLocal(conf);
BloomMapFile.Writer writer = new BloomMapFile.Writer(conf, TEST_FILE,
writer = new BloomMapFile.Writer(conf, TEST_FILE,
MapFile.Writer.keyClass(IntWritable.class),
MapFile.Writer.valueClass(Text.class));
assertNotNull("testDeleteFile error !!!", writer);
BloomMapFile.delete(fs, "." + TEST_FILE);
writer.close();
BloomMapFile.delete(fs, TEST_FILE.toString());
} catch (Exception ex) {
fail("unexpect ex in testDeleteFile !!!");
} finally {
IOUtils.cleanup(null, writer);
}
}
@ -157,24 +174,26 @@ public void testDeleteFile() {
* IOException
*/
public void testIOExceptionInWriterConstructor() {
Path dirNameSpy = org.mockito.Mockito.spy(TEST_FILE);
Path dirNameSpy = spy(TEST_FILE);
BloomMapFile.Reader reader = null;
BloomMapFile.Writer writer = null;
try {
BloomMapFile.Writer writer = new BloomMapFile.Writer(conf, TEST_FILE,
writer = new BloomMapFile.Writer(conf, TEST_FILE,
MapFile.Writer.keyClass(IntWritable.class),
MapFile.Writer.valueClass(Text.class));
writer.append(new IntWritable(1), new Text("123124142"));
writer.close();
org.mockito.Mockito.when(dirNameSpy.getFileSystem(conf)).thenThrow(
new IOException());
BloomMapFile.Reader reader = new BloomMapFile.Reader(dirNameSpy, conf,
when(dirNameSpy.getFileSystem(conf)).thenThrow(new IOException());
reader = new BloomMapFile.Reader(dirNameSpy, conf,
MapFile.Reader.comparator(new WritableComparator(IntWritable.class)));
assertNull("testIOExceptionInWriterConstructor error !!!",
reader.getBloomFilter());
reader.close();
} catch (Exception ex) {
fail("unexpect ex in testIOExceptionInWriterConstructor !!!");
} finally {
IOUtils.cleanup(null, writer, reader);
}
}
@ -183,8 +202,10 @@ public void testIOExceptionInWriterConstructor() {
*/
public void testGetBloomMapFile() {
int SIZE = 10;
BloomMapFile.Reader reader = null;
BloomMapFile.Writer writer = null;
try {
BloomMapFile.Writer writer = new BloomMapFile.Writer(conf, TEST_FILE,
writer = new BloomMapFile.Writer(conf, TEST_FILE,
MapFile.Writer.keyClass(IntWritable.class),
MapFile.Writer.valueClass(Text.class));
@ -193,7 +214,7 @@ public void testGetBloomMapFile() {
}
writer.close();
BloomMapFile.Reader reader = new BloomMapFile.Reader(TEST_FILE, conf,
reader = new BloomMapFile.Reader(TEST_FILE, conf,
MapFile.Reader.comparator(new WritableComparator(IntWritable.class)));
for (int i = 0; i < SIZE; i++) {
@ -203,9 +224,10 @@ public void testGetBloomMapFile() {
assertNull("testGetBloomMapFile error !!!",
reader.get(new IntWritable(SIZE + 5), new Text()));
reader.close();
} catch (Exception ex) {
fail("unexpect ex in testGetBloomMapFile !!!");
} finally {
IOUtils.cleanup(null, writer, reader);
}
}
@ -214,36 +236,46 @@ public void testGetBloomMapFile() {
*/
@SuppressWarnings("deprecation")
public void testBloomMapFileConstructors() {
BloomMapFile.Writer writer = null;
try {
FileSystem ts = FileSystem.get(conf);
String testFileName = TEST_FILE.toString();
BloomMapFile.Writer writer1 = new BloomMapFile.Writer(conf, ts,
writer = new BloomMapFile.Writer(conf, ts,
testFileName, IntWritable.class, Text.class, CompressionType.BLOCK,
defaultCodec, defaultProgress);
assertNotNull("testBloomMapFileConstructors error !!!", writer1);
BloomMapFile.Writer writer2 = new BloomMapFile.Writer(conf, ts,
assertNotNull("testBloomMapFileConstructors error !!!", writer);
writer.close();
writer = new BloomMapFile.Writer(conf, ts,
testFileName, IntWritable.class, Text.class, CompressionType.BLOCK,
defaultProgress);
assertNotNull("testBloomMapFileConstructors error !!!", writer2);
BloomMapFile.Writer writer3 = new BloomMapFile.Writer(conf, ts,
assertNotNull("testBloomMapFileConstructors error !!!", writer);
writer.close();
writer = new BloomMapFile.Writer(conf, ts,
testFileName, IntWritable.class, Text.class, CompressionType.BLOCK);
assertNotNull("testBloomMapFileConstructors error !!!", writer3);
BloomMapFile.Writer writer4 = new BloomMapFile.Writer(conf, ts,
assertNotNull("testBloomMapFileConstructors error !!!", writer);
writer.close();
writer = new BloomMapFile.Writer(conf, ts,
testFileName, IntWritable.class, Text.class, CompressionType.RECORD,
defaultCodec, defaultProgress);
assertNotNull("testBloomMapFileConstructors error !!!", writer4);
BloomMapFile.Writer writer5 = new BloomMapFile.Writer(conf, ts,
assertNotNull("testBloomMapFileConstructors error !!!", writer);
writer.close();
writer = new BloomMapFile.Writer(conf, ts,
testFileName, IntWritable.class, Text.class, CompressionType.RECORD,
defaultProgress);
assertNotNull("testBloomMapFileConstructors error !!!", writer5);
BloomMapFile.Writer writer6 = new BloomMapFile.Writer(conf, ts,
assertNotNull("testBloomMapFileConstructors error !!!", writer);
writer.close();
writer = new BloomMapFile.Writer(conf, ts,
testFileName, IntWritable.class, Text.class, CompressionType.RECORD);
assertNotNull("testBloomMapFileConstructors error !!!", writer6);
BloomMapFile.Writer writer7 = new BloomMapFile.Writer(conf, ts,
assertNotNull("testBloomMapFileConstructors error !!!", writer);
writer.close();
writer = new BloomMapFile.Writer(conf, ts,
testFileName, WritableComparator.get(Text.class), Text.class);
assertNotNull("testBloomMapFileConstructors error !!!", writer7);
assertNotNull("testBloomMapFileConstructors error !!!", writer);
writer.close();
} catch (Exception ex) {
fail("testBloomMapFileConstructors error !!!");
} finally {
IOUtils.cleanup(null, writer);
}
}
@ -272,13 +304,13 @@ public Class<? extends Compressor> getCompressorType() {
@Override
public CompressionOutputStream createOutputStream(OutputStream out,
Compressor compressor) throws IOException {
return null;
return mock(CompressionOutputStream.class);
}
@Override
public CompressionOutputStream createOutputStream(OutputStream out)
throws IOException {
return null;
return mock(CompressionOutputStream.class);
}
@Override

325
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/io/TestMapFile.java
View File

@ -26,6 +26,7 @@
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.LocalFileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.IOUtils;
import org.apache.hadoop.io.SequenceFile.CompressionType;
import org.apache.hadoop.io.compress.CompressionCodec;
import org.apache.hadoop.io.compress.CompressionInputStream;
@ -68,13 +69,13 @@ public void progress() {
@Override
public CompressionOutputStream createOutputStream(OutputStream out)
throws IOException {
return null;
return mock(CompressionOutputStream.class);
}
@Override
public CompressionOutputStream createOutputStream(OutputStream out,
Compressor compressor) throws IOException {
return null;
return mock(CompressionOutputStream.class);
}
@Override
@ -138,46 +139,52 @@ private MapFile.Reader createReader(String fileName,
@Test
public void testGetClosestOnCurrentApi() throws Exception {
final String TEST_PREFIX = "testGetClosestOnCurrentApi.mapfile";
MapFile.Writer writer = createWriter(TEST_PREFIX, Text.class, Text.class);
int FIRST_KEY = 1;
// Test keys: 11,21,31,...,91
for (int i = FIRST_KEY; i < 100; i += 10) {
Text t = new Text(Integer.toString(i));
writer.append(t, t);
MapFile.Writer writer = null;
MapFile.Reader reader = null;
try {
writer = createWriter(TEST_PREFIX, Text.class, Text.class);
int FIRST_KEY = 1;
// Test keys: 11,21,31,...,91
for (int i = FIRST_KEY; i < 100; i += 10) {
Text t = new Text(Integer.toString(i));
writer.append(t, t);
}
writer.close();
reader = createReader(TEST_PREFIX, Text.class);
Text key = new Text("55");
Text value = new Text();
// Test get closest with step forward
Text closest = (Text) reader.getClosest(key, value);
assertEquals(new Text("61"), closest);
// Test get closest with step back
closest = (Text) reader.getClosest(key, value, true);
assertEquals(new Text("51"), closest);
// Test get closest when we pass explicit key
final Text explicitKey = new Text("21");
closest = (Text) reader.getClosest(explicitKey, value);
assertEquals(new Text("21"), explicitKey);
// Test what happens at boundaries. Assert if searching a key that is
// less than first key in the mapfile, that the first key is returned.
key = new Text("00");
closest = (Text) reader.getClosest(key, value);
assertEquals(FIRST_KEY, Integer.parseInt(closest.toString()));
// Assert that null is returned if key is > last entry in mapfile.
key = new Text("92");
closest = (Text) reader.getClosest(key, value);
assertNull("Not null key in testGetClosestWithNewCode", closest);
// If we were looking for the key before, we should get the last key
closest = (Text) reader.getClosest(key, value, true);
assertEquals(new Text("91"), closest);
} finally {
IOUtils.cleanup(null, writer, reader);
}
writer.close();
MapFile.Reader reader = createReader(TEST_PREFIX, Text.class);
Text key = new Text("55");
Text value = new Text();
// Test get closest with step forward
Text closest = (Text) reader.getClosest(key, value);
assertEquals(new Text("61"), closest);
// Test get closest with step back
closest = (Text) reader.getClosest(key, value, true);
assertEquals(new Text("51"), closest);
// Test get closest when we pass explicit key
final Text explicitKey = new Text("21");
closest = (Text) reader.getClosest(explicitKey, value);
assertEquals(new Text("21"), explicitKey);
// Test what happens at boundaries. Assert if searching a key that is
// less than first key in the mapfile, that the first key is returned.
key = new Text("00");
closest = (Text) reader.getClosest(key, value);
assertEquals(FIRST_KEY, Integer.parseInt(closest.toString()));
// Assert that null is returned if key is > last entry in mapfile.
key = new Text("92");
closest = (Text) reader.getClosest(key, value);
assertNull("Not null key in testGetClosestWithNewCode", closest);
// If we were looking for the key before, we should get the last key
closest = (Text) reader.getClosest(key, value, true);
assertEquals(new Text("91"), closest);
}
/**
@ -187,16 +194,21 @@ public void testGetClosestOnCurrentApi() throws Exception {
public void testMidKeyOnCurrentApi() throws Exception {
// Write a mapfile of simple data: keys are
final String TEST_PREFIX = "testMidKeyOnCurrentApi.mapfile";
MapFile.Writer writer = createWriter(TEST_PREFIX, IntWritable.class,
IntWritable.class);
// 0,1,....9
int SIZE = 10;
for (int i = 0; i < SIZE; i++)
writer.append(new IntWritable(i), new IntWritable(i));
writer.close();
MapFile.Writer writer = null;
MapFile.Reader reader = null;
try {
writer = createWriter(TEST_PREFIX, IntWritable.class, IntWritable.class);
// 0,1,....9
int SIZE = 10;
for (int i = 0; i < SIZE; i++)
writer.append(new IntWritable(i), new IntWritable(i));
writer.close();
MapFile.Reader reader = createReader(TEST_PREFIX, IntWritable.class);
assertEquals(new IntWritable((SIZE - 1) / 2), reader.midKey());
reader = createReader(TEST_PREFIX, IntWritable.class);
assertEquals(new IntWritable((SIZE - 1) / 2), reader.midKey());
} finally {
IOUtils.cleanup(null, writer, reader);
}
}
/**
@ -206,16 +218,18 @@ public void testMidKeyOnCurrentApi() throws Exception {
public void testRename() {
final String NEW_FILE_NAME = "test-new.mapfile";
final String OLD_FILE_NAME = "test-old.mapfile";
MapFile.Writer writer = null;
try {
FileSystem fs = FileSystem.getLocal(conf);
MapFile.Writer writer = createWriter(OLD_FILE_NAME, IntWritable.class,
IntWritable.class);
writer = createWriter(OLD_FILE_NAME, IntWritable.class, IntWritable.class);
writer.close();
MapFile.rename(fs, new Path(TEST_DIR, OLD_FILE_NAME).toString(),
new Path(TEST_DIR, NEW_FILE_NAME).toString());
MapFile.delete(fs, new Path(TEST_DIR, NEW_FILE_NAME).toString());
} catch (IOException ex) {
fail("testRename error " + ex);
} finally {
IOUtils.cleanup(null, writer);
}
}
@ -228,12 +242,12 @@ public void testRenameWithException() {
final String ERROR_MESSAGE = "Can't rename file";
final String NEW_FILE_NAME = "test-new.mapfile";
final String OLD_FILE_NAME = "test-old.mapfile";
MapFile.Writer writer = null;
try {
FileSystem fs = FileSystem.getLocal(conf);
FileSystem spyFs = spy(fs);
MapFile.Writer writer = createWriter(OLD_FILE_NAME, IntWritable.class,
IntWritable.class);
writer = createWriter(OLD_FILE_NAME, IntWritable.class, IntWritable.class);
writer.close();
Path oldDir = new Path(TEST_DIR, OLD_FILE_NAME);
@ -246,6 +260,8 @@ public void testRenameWithException() {
} catch (IOException ex) {
assertEquals("testRenameWithException invalid IOExceptionMessage !!!",
ex.getMessage(), ERROR_MESSAGE);
} finally {
IOUtils.cleanup(null, writer);
}
}
@ -254,12 +270,12 @@ public void testRenameWithFalse() {
final String ERROR_MESSAGE = "Could not rename";
final String NEW_FILE_NAME = "test-new.mapfile";
final String OLD_FILE_NAME = "test-old.mapfile";
MapFile.Writer writer = null;
try {
FileSystem fs = FileSystem.getLocal(conf);
FileSystem spyFs = spy(fs);
MapFile.Writer writer = createWriter(OLD_FILE_NAME, IntWritable.class,
IntWritable.class);
writer = createWriter(OLD_FILE_NAME, IntWritable.class, IntWritable.class);
writer.close();
Path oldDir = new Path(TEST_DIR, OLD_FILE_NAME);
@ -271,6 +287,8 @@ public void testRenameWithFalse() {
} catch (IOException ex) {
assertTrue("testRenameWithFalse invalid IOExceptionMessage error !!!", ex
.getMessage().startsWith(ERROR_MESSAGE));
} finally {
IOUtils.cleanup(null, writer);
}
}
@ -297,11 +315,7 @@ public void testWriteWithFailDirCreation() {
assertTrue("testWriteWithFailDirCreation ex error !!!", ex.getMessage()
.startsWith(ERROR_MESSAGE));
} finally {
if (writer != null)
try {
writer.close();
} catch (IOException e) {
}
IOUtils.cleanup(null, writer);
}
}
@ -312,20 +326,24 @@ public void testWriteWithFailDirCreation() {
public void testOnFinalKey() {
final String TEST_METHOD_KEY = "testOnFinalKey.mapfile";
int SIZE = 10;
MapFile.Writer writer = null;
MapFile.Reader reader = null;
try {
MapFile.Writer writer = createWriter(TEST_METHOD_KEY, IntWritable.class,
IntWritable.class);
writer = createWriter(TEST_METHOD_KEY, IntWritable.class,
IntWritable.class);
for (int i = 0; i < SIZE; i++)
writer.append(new IntWritable(i), new IntWritable(i));
writer.close();
MapFile.Reader reader = createReader(TEST_METHOD_KEY, IntWritable.class);
reader = createReader(TEST_METHOD_KEY, IntWritable.class);
IntWritable expectedKey = new IntWritable(0);
reader.finalKey(expectedKey);
assertEquals("testOnFinalKey not same !!!", expectedKey, new IntWritable(
9));
} catch (IOException ex) {
fail("testOnFinalKey error !!!");
} finally {
IOUtils.cleanup(null, writer, reader);
}
}
@ -338,7 +356,8 @@ public void testKeyValueClasses() {
Class<? extends WritableComparable<?>> keyClass = IntWritable.class;
Class<?> valueClass = Text.class;
try {
createWriter("testKeyValueClasses.mapfile", IntWritable.class, Text.class);
createWriter("testKeyValueClasses.mapfile", IntWritable.class, Text.class)
.close();
assertNotNull("writer key class null error !!!",
MapFile.Writer.keyClass(keyClass));
assertNotNull("writer value class null error !!!",
@ -354,19 +373,22 @@ public void testKeyValueClasses() {
@Test
public void testReaderGetClosest() throws Exception {
final String TEST_METHOD_KEY = "testReaderWithWrongKeyClass.mapfile";
MapFile.Writer writer = null;
MapFile.Reader reader = null;
try {
MapFile.Writer writer = createWriter(TEST_METHOD_KEY, IntWritable.class,
Text.class);
writer = createWriter(TEST_METHOD_KEY, IntWritable.class, Text.class);
for (int i = 0; i < 10; i++)
writer.append(new IntWritable(i), new Text("value" + i));
writer.close();
MapFile.Reader reader = createReader(TEST_METHOD_KEY, Text.class);
reader = createReader(TEST_METHOD_KEY, Text.class);
reader.getClosest(new Text("2"), new Text(""));
fail("no excepted exception in testReaderWithWrongKeyClass !!!");
} catch (IOException ex) {
/* Should be thrown to pass the test */
} finally {
IOUtils.cleanup(null, writer, reader);
}
}
@ -376,13 +398,15 @@ public void testReaderGetClosest() throws Exception {
@Test
public void testReaderWithWrongValueClass() {
final String TEST_METHOD_KEY = "testReaderWithWrongValueClass.mapfile";
MapFile.Writer writer = null;
try {
MapFile.Writer writer = createWriter(TEST_METHOD_KEY, IntWritable.class,
Text.class);
writer = createWriter(TEST_METHOD_KEY, IntWritable.class, Text.class);
writer.append(new IntWritable(0), new IntWritable(0));
fail("no excepted exception in testReaderWithWrongKeyClass !!!");
} catch (IOException ex) {
/* Should be thrown to pass the test */
} finally {
IOUtils.cleanup(null, writer);
}
}
@ -394,15 +418,16 @@ public void testReaderKeyIteration() {
final String TEST_METHOD_KEY = "testReaderKeyIteration.mapfile";
int SIZE = 10;
int ITERATIONS = 5;
MapFile.Writer writer = null;
MapFile.Reader reader = null;
try {
MapFile.Writer writer = createWriter(TEST_METHOD_KEY, IntWritable.class,
Text.class);
writer = createWriter(TEST_METHOD_KEY, IntWritable.class, Text.class);
int start = 0;
for (int i = 0; i < SIZE; i++)
writer.append(new IntWritable(i), new Text("Value:" + i));
writer.close();
MapFile.Reader reader = createReader(TEST_METHOD_KEY, IntWritable.class);
reader = createReader(TEST_METHOD_KEY, IntWritable.class);
// test iteration
Writable startValue = new Text("Value:" + start);
int i = 0;
@ -421,6 +446,8 @@ public void testReaderKeyIteration() {
reader.seek(new IntWritable(SIZE * 2)));
} catch (IOException ex) {
fail("reader seek error !!!");
} finally {
IOUtils.cleanup(null, writer, reader);
}
}
@ -431,11 +458,11 @@ public void testReaderKeyIteration() {
public void testFix() {
final String INDEX_LESS_MAP_FILE = "testFix.mapfile";
int PAIR_SIZE = 20;
MapFile.Writer writer = null;
try {
FileSystem fs = FileSystem.getLocal(conf);
Path dir = new Path(TEST_DIR, INDEX_LESS_MAP_FILE);
MapFile.Writer writer = createWriter(INDEX_LESS_MAP_FILE,
IntWritable.class, Text.class);
writer = createWriter(INDEX_LESS_MAP_FILE, IntWritable.class, Text.class);
for (int i = 0; i < PAIR_SIZE; i++)
writer.append(new IntWritable(0), new Text("value"));
writer.close();
@ -450,6 +477,8 @@ public void testFix() {
MapFile.fix(fs, dir, IntWritable.class, Text.class, true, conf) == PAIR_SIZE);
} catch (Exception ex) {
fail("testFix error !!!");
} finally {
IOUtils.cleanup(null, writer);
}
}
/**
@ -459,38 +488,46 @@ public void testFix() {
@SuppressWarnings("deprecation")
public void testDeprecatedConstructors() {
String path = new Path(TEST_DIR, "writes.mapfile").toString();
MapFile.Writer writer = null;
MapFile.Reader reader = null;
try {
FileSystem fs = FileSystem.getLocal(conf);
MapFile.Writer writer = new MapFile.Writer(conf, fs, path,
writer = new MapFile.Writer(conf, fs, path,
IntWritable.class, Text.class, CompressionType.RECORD);
assertNotNull(writer);
writer.close();
writer = new MapFile.Writer(conf, fs, path, IntWritable.class,
Text.class, CompressionType.RECORD, defaultProgressable);
assertNotNull(writer);
writer.close();
writer = new MapFile.Writer(conf, fs, path, IntWritable.class,
Text.class, CompressionType.RECORD, defaultCodec, defaultProgressable);
assertNotNull(writer);
writer.close();
writer = new MapFile.Writer(conf, fs, path,
WritableComparator.get(Text.class), Text.class);
assertNotNull(writer);
writer.close();
writer = new MapFile.Writer(conf, fs, path,
WritableComparator.get(Text.class), Text.class,
SequenceFile.CompressionType.RECORD);
assertNotNull(writer);
writer.close();
writer = new MapFile.Writer(conf, fs, path,
WritableComparator.get(Text.class), Text.class,
CompressionType.RECORD, defaultProgressable);
assertNotNull(writer);
writer.close();
MapFile.Reader reader = new MapFile.Reader(fs, path,
reader = new MapFile.Reader(fs, path,
WritableComparator.get(IntWritable.class), conf);
assertNotNull(reader);
assertNotNull("reader key is null !!!", reader.getKeyClass());
assertNotNull("reader value in null", reader.getValueClass());
} catch (IOException e) {
fail(e.getMessage());
} finally {
IOUtils.cleanup(null, writer, reader);
}
}
@ -509,11 +546,7 @@ public void testKeyLessWriterCreation() {
} catch (Exception e) {
fail("fail in testKeyLessWriterCreation. Other ex !!!");
} finally {
if (writer != null)
try {
writer.close();
} catch (IOException e) {
}
IOUtils.cleanup(null, writer);
}
}
/**
@ -542,11 +575,7 @@ public void testPathExplosionWriterCreation() {
} catch (Exception e) {
fail("fail in testPathExplosionWriterCreation. Other ex !!!");
} finally {
if (writer != null)
try {
writer.close();
} catch (IOException e) {
}
IOUtils.cleanup(null, writer);
}
}
@ -555,9 +584,9 @@ public void testPathExplosionWriterCreation() {
*/
@Test
public void testDescOrderWithThrowExceptionWriterAppend() {
MapFile.Writer writer = null;
try {
MapFile.Writer writer = createWriter(".mapfile", IntWritable.class,
Text.class);
writer = createWriter(".mapfile", IntWritable.class, Text.class);
writer.append(new IntWritable(2), new Text("value: " + 1));
writer.append(new IntWritable(2), new Text("value: " + 2));
writer.append(new IntWritable(2), new Text("value: " + 4));
@ -566,6 +595,8 @@ public void testDescOrderWithThrowExceptionWriterAppend() {
} catch (IOException ex) {
} catch (Exception e) {
fail("testDescOrderWithThrowExceptionWriterAppend other ex throw !!!");
} finally {
IOUtils.cleanup(null, writer);
}
}
@ -575,15 +606,17 @@ public void testMainMethodMapFile() {
String inFile = "mainMethodMapFile.mapfile";
String outFile = "mainMethodMapFile.mapfile";
String[] args = { path, outFile };
MapFile.Writer writer = null;
try {
MapFile.Writer writer = createWriter(inFile, IntWritable.class,
Text.class);
writer = createWriter(inFile, IntWritable.class, Text.class);
writer.append(new IntWritable(1), new Text("test_text1"));
writer.append(new IntWritable(2), new Text("test_text2"));
writer.close();
MapFile.main(args);
} catch (Exception ex) {
fail("testMainMethodMapFile error !!!");
} finally {
IOUtils.cleanup(null, writer);
}
}
@ -601,56 +634,58 @@ public void testGetClosest() throws Exception {
Path qualifiedDirName = fs.makeQualified(dirName);
// Make an index entry for every third insertion.
MapFile.Writer.setIndexInterval(conf, 3);
MapFile.Writer writer = new MapFile.Writer(conf, fs,
qualifiedDirName.toString(), Text.class, Text.class);
// Assert that the index interval is 1
assertEquals(3, writer.getIndexInterval());
// Add entries up to 100 in intervals of ten.
final int FIRST_KEY = 10;
for (int i = FIRST_KEY; i < 100; i += 10) {
String iStr = Integer.toString(i);
Text t = new Text("00".substring(iStr.length()) + iStr);
writer.append(t, t);
}
writer.close();
// Now do getClosest on created mapfile.
MapFile.Reader reader = new MapFile.Reader(qualifiedDirName, conf);
MapFile.Writer writer = null;
MapFile.Reader reader = null;
try {
Text key = new Text("55");
Text value = new Text();
Text closest = (Text) reader.getClosest(key, value);
// Assert that closest after 55 is 60
assertEquals(new Text("60"), closest);
// Get closest that falls before the passed key: 50
closest = (Text) reader.getClosest(key, value, true);
assertEquals(new Text("50"), closest);
// Test get closest when we pass explicit key
final Text TWENTY = new Text("20");
closest = (Text) reader.getClosest(TWENTY, value);
assertEquals(TWENTY, closest);
closest = (Text) reader.getClosest(TWENTY, value, true);
assertEquals(TWENTY, closest);
// Test what happens at boundaries. Assert if searching a key that is
// less than first key in the mapfile, that the first key is returned.
key = new Text("00");
closest = (Text) reader.getClosest(key, value);
assertEquals(FIRST_KEY, Integer.parseInt(closest.toString()));
writer = new MapFile.Writer(conf, fs, qualifiedDirName.toString(),
Text.class, Text.class);
// Assert that the index interval is 1
assertEquals(3, writer.getIndexInterval());
// Add entries up to 100 in intervals of ten.
final int FIRST_KEY = 10;
for (int i = FIRST_KEY; i < 100; i += 10) {
String iStr = Integer.toString(i);
Text t = new Text("00".substring(iStr.length()) + iStr);
writer.append(t, t);
}
writer.close();
// Now do getClosest on created mapfile.
reader = new MapFile.Reader(qualifiedDirName, conf);
Text key = new Text("55");
Text value = new Text();
Text closest = (Text) reader.getClosest(key, value);
// Assert that closest after 55 is 60
assertEquals(new Text("60"), closest);
// Get closest that falls before the passed key: 50
closest = (Text) reader.getClosest(key, value, true);
assertEquals(new Text("50"), closest);
// Test get closest when we pass explicit key
final Text TWENTY = new Text("20");
closest = (Text) reader.getClosest(TWENTY, value);
assertEquals(TWENTY, closest);
closest = (Text) reader.getClosest(TWENTY, value, true);
assertEquals(TWENTY, closest);
// Test what happens at boundaries. Assert if searching a key that is
// less than first key in the mapfile, that the first key is returned.
key = new Text("00");
closest = (Text) reader.getClosest(key, value);
assertEquals(FIRST_KEY, Integer.parseInt(closest.toString()));
// If we're looking for the first key before, and we pass in a key before
// the first key in the file, we should get null
closest = (Text) reader.getClosest(key, value, true);
assertNull(closest);
// If we're looking for the first key before, and we pass in a key before
// the first key in the file, we should get null
closest = (Text) reader.getClosest(key, value, true);
assertNull(closest);
// Assert that null is returned if key is > last entry in mapfile.
key = new Text("99");
closest = (Text) reader.getClosest(key, value);
assertNull(closest);
// Assert that null is returned if key is > last entry in mapfile.
key = new Text("99");
closest = (Text) reader.getClosest(key, value);
assertNull(closest);
// If we were looking for the key before, we should get the last key
closest = (Text) reader.getClosest(key, value, true);
assertEquals(new Text("90"), closest);
// If we were looking for the key before, we should get the last key
closest = (Text) reader.getClosest(key, value, true);
assertEquals(new Text("90"), closest);
} finally {
reader.close();
IOUtils.cleanup(null, writer, reader);
}
}
@ -662,16 +697,18 @@ public void testMidKey() throws Exception {
FileSystem fs = FileSystem.getLocal(conf);
Path qualifiedDirName = fs.makeQualified(dirName);
MapFile.Writer writer = new MapFile.Writer(conf, fs,
qualifiedDirName.toString(), IntWritable.class, IntWritable.class);
writer.append(new IntWritable(1), new IntWritable(1));
writer.close();
// Now do getClosest on created mapfile.
MapFile.Reader reader = new MapFile.Reader(qualifiedDirName, conf);
MapFile.Writer writer = null;
MapFile.Reader reader = null;
try {
writer = new MapFile.Writer(conf, fs, qualifiedDirName.toString(),
IntWritable.class, IntWritable.class);
writer.append(new IntWritable(1), new IntWritable(1));
writer.close();
// Now do getClosest on created mapfile.
reader = new MapFile.Reader(qualifiedDirName, conf);
assertEquals(new IntWritable(1), reader.midKey());
} finally {
reader.close();
IOUtils.cleanup(null, writer, reader);
}
}