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Posted to hdfs-commits@hadoop.apache.org by at...@apache.org on 2012/04/14 01:30:52 UTC
svn commit: r1326012 - in
/hadoop/common/branches/branch-2/hadoop-hdfs-project/hadoop-hdfs: CHANGES.txt
src/test/java/org/apache/hadoop/hdfs/server/namenode/TestNameEditsConfigs.java
Author: atm
Date: Fri Apr 13 23:30:52 2012
New Revision: 1326012
URL: http://svn.apache.org/viewvc?rev=1326012&view=rev
Log:
HDFS-2765. TestNameEditsConfigs is incorrectly swallowing IOE. Contributed by Aaron T. Myers.
Modified:
hadoop/common/branches/branch-2/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
hadoop/common/branches/branch-2/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestNameEditsConfigs.java
Modified: hadoop/common/branches/branch-2/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
URL: http://svn.apache.org/viewvc/hadoop/common/branches/branch-2/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt?rev=1326012&r1=1326011&r2=1326012&view=diff
==============================================================================
--- hadoop/common/branches/branch-2/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt (original)
+++ hadoop/common/branches/branch-2/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt Fri Apr 13 23:30:52 2012
@@ -391,6 +391,8 @@ Release 2.0.0 - UNRELEASED
HDFS-2799. Trim fs.checkpoint.dir values. (Amith D K via eli)
+ HDFS-2765. TestNameEditsConfigs is incorrectly swallowing IOE. (atm)
+
BREAKDOWN OF HDFS-1623 SUBTASKS
HDFS-2179. Add fencing framework and mechanisms for NameNode HA. (todd)
Modified: hadoop/common/branches/branch-2/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestNameEditsConfigs.java
URL: http://svn.apache.org/viewvc/hadoop/common/branches/branch-2/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestNameEditsConfigs.java?rev=1326012&r1=1326011&r2=1326012&view=diff
==============================================================================
--- hadoop/common/branches/branch-2/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestNameEditsConfigs.java (original)
+++ hadoop/common/branches/branch-2/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestNameEditsConfigs.java Fri Apr 13 23:30:52 2012
@@ -17,20 +17,30 @@
*/
package org.apache.hadoop.hdfs.server.namenode;
-import junit.framework.TestCase;
-import java.io.*;
-import java.util.Random;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+import java.io.File;
+import java.io.IOException;
import java.util.List;
+import java.util.Random;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
-import org.apache.hadoop.hdfs.HdfsConfiguration;
-import org.apache.hadoop.hdfs.MiniDFSCluster;
import org.apache.hadoop.fs.CommonConfigurationKeys;
import org.apache.hadoop.fs.FSDataOutputStream;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.FileUtil;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hdfs.DFSConfigKeys;
+import org.apache.hadoop.hdfs.HdfsConfiguration;
+import org.apache.hadoop.hdfs.MiniDFSCluster;
import org.apache.hadoop.hdfs.server.namenode.NNStorage.NameNodeDirType;
+import org.junit.Before;
+import org.junit.Test;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
@@ -39,7 +49,10 @@ import com.google.common.collect.Immutab
* This class tests various combinations of dfs.namenode.name.dir
* and dfs.namenode.edits.dir configurations.
*/
-public class TestNameEditsConfigs extends TestCase {
+public class TestNameEditsConfigs {
+
+ private static final Log LOG = LogFactory.getLog(FSEditLog.class);
+
static final long SEED = 0xDEADBEEFL;
static final int BLOCK_SIZE = 4096;
static final int FILE_SIZE = 8192;
@@ -51,15 +64,15 @@ public class TestNameEditsConfigs extend
private File base_dir = new File(
System.getProperty("test.build.data", "build/test/data"), "dfs/");
- protected void setUp() throws java.lang.Exception {
- if(base_dir.exists()) {
- if (!FileUtil.fullyDelete(base_dir))
- throw new IOException("Cannot remove directory " + base_dir);
+ @Before
+ public void setUp() throws IOException {
+ if(base_dir.exists() && !FileUtil.fullyDelete(base_dir)) {
+ throw new IOException("Cannot remove directory " + base_dir);
}
}
private void writeFile(FileSystem fileSys, Path name, int repl)
- throws IOException {
+ throws IOException {
FSDataOutputStream stm = fileSys.create(name, true, fileSys.getConf()
.getInt(CommonConfigurationKeys.IO_FILE_BUFFER_SIZE_KEY, 4096),
(short) repl, BLOCK_SIZE);
@@ -73,7 +86,7 @@ public class TestNameEditsConfigs extend
void checkImageAndEditsFilesExistence(File dir,
boolean shouldHaveImages,
boolean shouldHaveEdits)
- throws IOException {
+ throws IOException {
FSImageTransactionalStorageInspector ins = inspect(dir);
if (shouldHaveImages) {
@@ -92,7 +105,7 @@ public class TestNameEditsConfigs extend
}
private void checkFile(FileSystem fileSys, Path name, int repl)
- throws IOException {
+ throws IOException {
assertTrue(fileSys.exists(name));
int replication = fileSys.getFileStatus(name).getReplication();
assertEquals("replication for " + name, repl, replication);
@@ -101,7 +114,7 @@ public class TestNameEditsConfigs extend
}
private void cleanupFile(FileSystem fileSys, Path name)
- throws IOException {
+ throws IOException {
assertTrue(fileSys.exists(name));
fileSys.delete(name, true);
assertTrue(!fileSys.exists(name));
@@ -126,6 +139,7 @@ public class TestNameEditsConfigs extend
* sure we are reading proper edits and image.
* @throws Exception
*/
+ @Test
public void testNameEditsConfigs() throws Exception {
Path file1 = new Path("TestNameEditsConfigs1");
Path file2 = new Path("TestNameEditsConfigs2");
@@ -310,12 +324,14 @@ public class TestNameEditsConfigs extend
* This test tries to simulate failure scenarios.
* 1. Start cluster with shared name and edits dir
* 2. Restart cluster by adding separate name and edits dirs
- * T3. Restart cluster by removing shared name and edits dir
+ * 3. Restart cluster by removing shared name and edits dir
* 4. Restart cluster with old shared name and edits dir, but only latest
- * name dir. This should fail since we dont have latest edits dir
+ * name dir. This should fail since we don't have latest edits dir
* 5. Restart cluster with old shared name and edits dir, but only latest
- * edits dir. This should fail since we dont have latest name dir
+ * edits dir. This should succeed since the latest edits will have
+ * segments leading all the way from the image in name_and_edits.
*/
+ @Test
public void testNameEditsConfigsFailure() throws IOException {
Path file1 = new Path("TestNameEditsConfigs1");
Path file2 = new Path("TestNameEditsConfigs2");
@@ -323,28 +339,30 @@ public class TestNameEditsConfigs extend
MiniDFSCluster cluster = null;
Configuration conf = null;
FileSystem fileSys = null;
- File newNameDir = new File(base_dir, "name");
- File newEditsDir = new File(base_dir, "edits");
- File nameAndEdits = new File(base_dir, "name_and_edits");
+ File nameOnlyDir = new File(base_dir, "name");
+ File editsOnlyDir = new File(base_dir, "edits");
+ File nameAndEditsDir = new File(base_dir, "name_and_edits");
+ // 1
// Start namenode with same dfs.namenode.name.dir and dfs.namenode.edits.dir
conf = new HdfsConfiguration();
- conf.set(DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY, nameAndEdits.getPath());
- conf.set(DFSConfigKeys.DFS_NAMENODE_EDITS_DIR_KEY, nameAndEdits.getPath());
+ conf.set(DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY, nameAndEditsDir.getPath());
+ conf.set(DFSConfigKeys.DFS_NAMENODE_EDITS_DIR_KEY, nameAndEditsDir.getPath());
replication = (short)conf.getInt(DFSConfigKeys.DFS_REPLICATION_KEY, 3);
- // Manage our own dfs directories
- cluster = new MiniDFSCluster.Builder(conf)
- .numDataNodes(NUM_DATA_NODES)
- .manageNameDfsDirs(false)
- .build();
- cluster.waitActive();
-
- // Check that the dir has a VERSION file
- assertTrue(new File(nameAndEdits, "current/VERSION").exists());
- fileSys = cluster.getFileSystem();
-
try {
+ // Manage our own dfs directories
+ cluster = new MiniDFSCluster.Builder(conf)
+ .numDataNodes(NUM_DATA_NODES)
+ .manageNameDfsDirs(false)
+ .build();
+ cluster.waitActive();
+
+ // Check that the dir has a VERSION file
+ assertTrue(new File(nameAndEditsDir, "current/VERSION").exists());
+
+ fileSys = cluster.getFileSystem();
+
assertTrue(!fileSys.exists(file1));
writeFile(fileSys, file1, replication);
checkFile(fileSys, file1, replication);
@@ -353,32 +371,34 @@ public class TestNameEditsConfigs extend
cluster.shutdown();
}
+ // 2
// Start namenode with additional dfs.namenode.name.dir and dfs.namenode.edits.dir
conf = new HdfsConfiguration();
- assertTrue(newNameDir.mkdir());
- assertTrue(newEditsDir.mkdir());
+ assertTrue(nameOnlyDir.mkdir());
+ assertTrue(editsOnlyDir.mkdir());
- conf.set(DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY, nameAndEdits.getPath() +
- "," + newNameDir.getPath());
- conf.set(DFSConfigKeys.DFS_NAMENODE_EDITS_DIR_KEY, nameAndEdits.getPath() +
- "," + newEditsDir.getPath());
+ conf.set(DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY, nameAndEditsDir.getPath() +
+ "," + nameOnlyDir.getPath());
+ conf.set(DFSConfigKeys.DFS_NAMENODE_EDITS_DIR_KEY, nameAndEditsDir.getPath() +
+ "," + editsOnlyDir.getPath());
replication = (short)conf.getInt(DFSConfigKeys.DFS_REPLICATION_KEY, 3);
- // Manage our own dfs directories. Do not format.
- cluster = new MiniDFSCluster.Builder(conf)
- .numDataNodes(NUM_DATA_NODES)
- .format(false)
- .manageNameDfsDirs(false)
- .build();
- cluster.waitActive();
-
- // Check that the dirs have a VERSION file
- assertTrue(new File(nameAndEdits, "current/VERSION").exists());
- assertTrue(new File(newNameDir, "current/VERSION").exists());
- assertTrue(new File(newEditsDir, "current/VERSION").exists());
-
- fileSys = cluster.getFileSystem();
-
+
try {
+ // Manage our own dfs directories. Do not format.
+ cluster = new MiniDFSCluster.Builder(conf)
+ .numDataNodes(NUM_DATA_NODES)
+ .format(false)
+ .manageNameDfsDirs(false)
+ .build();
+ cluster.waitActive();
+
+ // Check that the dirs have a VERSION file
+ assertTrue(new File(nameAndEditsDir, "current/VERSION").exists());
+ assertTrue(new File(nameOnlyDir, "current/VERSION").exists());
+ assertTrue(new File(editsOnlyDir, "current/VERSION").exists());
+
+ fileSys = cluster.getFileSystem();
+
assertTrue(fileSys.exists(file1));
checkFile(fileSys, file1, replication);
cleanupFile(fileSys, file1);
@@ -389,22 +409,23 @@ public class TestNameEditsConfigs extend
cluster.shutdown();
}
+ // 3
// Now remove common directory both have and start namenode with
// separate name and edits dirs
- conf = new HdfsConfiguration();
- conf.set(DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY, newNameDir.getPath());
- conf.set(DFSConfigKeys.DFS_NAMENODE_EDITS_DIR_KEY, newEditsDir.getPath());
- replication = (short)conf.getInt(DFSConfigKeys.DFS_REPLICATION_KEY, 3);
- cluster = new MiniDFSCluster.Builder(conf)
- .numDataNodes(NUM_DATA_NODES)
- .format(false)
- .manageNameDfsDirs(false)
- .build();
- cluster.waitActive();
- fileSys = cluster.getFileSystem();
-
try {
- assertTrue(!fileSys.exists(file1));
+ conf = new HdfsConfiguration();
+ conf.set(DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY, nameOnlyDir.getPath());
+ conf.set(DFSConfigKeys.DFS_NAMENODE_EDITS_DIR_KEY, editsOnlyDir.getPath());
+ replication = (short)conf.getInt(DFSConfigKeys.DFS_REPLICATION_KEY, 3);
+ cluster = new MiniDFSCluster.Builder(conf)
+ .numDataNodes(NUM_DATA_NODES)
+ .format(false)
+ .manageNameDfsDirs(false)
+ .build();
+ cluster.waitActive();
+ fileSys = cluster.getFileSystem();
+
+ assertFalse(fileSys.exists(file1));
assertTrue(fileSys.exists(file2));
checkFile(fileSys, file2, replication);
cleanupFile(fileSys, file2);
@@ -415,11 +436,12 @@ public class TestNameEditsConfigs extend
cluster.shutdown();
}
+ // 4
// Add old shared directory for name and edits along with latest name
conf = new HdfsConfiguration();
- conf.set(DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY, newNameDir.getPath() + "," +
- nameAndEdits.getPath());
- conf.set(DFSConfigKeys.DFS_NAMENODE_EDITS_DIR_KEY, nameAndEdits.getPath());
+ conf.set(DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY, nameOnlyDir.getPath() + "," +
+ nameAndEditsDir.getPath());
+ conf.set(DFSConfigKeys.DFS_NAMENODE_EDITS_DIR_KEY, nameAndEditsDir.getPath());
replication = (short)conf.getInt(DFSConfigKeys.DFS_REPLICATION_KEY, 3);
try {
cluster = new MiniDFSCluster.Builder(conf)
@@ -427,21 +449,25 @@ public class TestNameEditsConfigs extend
.format(false)
.manageNameDfsDirs(false)
.build();
- assertTrue(false);
+ fail("Successfully started cluster but should not have been able to.");
} catch (IOException e) { // expect to fail
- System.out.println("cluster start failed due to missing " +
- "latest edits dir");
+ LOG.info("EXPECTED: cluster start failed due to missing " +
+ "latest edits dir", e);
} finally {
+ if (cluster != null) {
+ cluster.shutdown();
+ }
cluster = null;
}
+ // 5
// Add old shared directory for name and edits along with latest edits.
// This is OK, since the latest edits will have segments leading all
// the way from the image in name_and_edits.
conf = new HdfsConfiguration();
- conf.set(DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY, nameAndEdits.getPath());
- conf.set(DFSConfigKeys.DFS_NAMENODE_EDITS_DIR_KEY, newEditsDir.getPath() +
- "," + nameAndEdits.getPath());
+ conf.set(DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY, nameAndEditsDir.getPath());
+ conf.set(DFSConfigKeys.DFS_NAMENODE_EDITS_DIR_KEY, editsOnlyDir.getPath() +
+ "," + nameAndEditsDir.getPath());
replication = (short)conf.getInt(DFSConfigKeys.DFS_REPLICATION_KEY, 3);
try {
cluster = new MiniDFSCluster.Builder(conf)
@@ -449,14 +475,16 @@ public class TestNameEditsConfigs extend
.format(false)
.manageNameDfsDirs(false)
.build();
- assertTrue(!fileSys.exists(file1));
- assertTrue(fileSys.exists(file2));
- checkFile(fileSys, file2, replication);
- cleanupFile(fileSys, file2);
+
+ fileSys = cluster.getFileSystem();
+
+ assertFalse(fileSys.exists(file1));
+ assertFalse(fileSys.exists(file2));
+ assertTrue(fileSys.exists(file3));
+ checkFile(fileSys, file3, replication);
+ cleanupFile(fileSys, file3);
writeFile(fileSys, file3, replication);
checkFile(fileSys, file3, replication);
- } catch (IOException e) { // expect to fail
- System.out.println("cluster start failed due to missing latest name dir");
} finally {
fileSys.close();
cluster.shutdown();