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HDFS-10287. MiniDFSCluster should implement AutoCloseable. Contributed by Andras Bokor.

This commit is contained in:
Akira Ajisaka 2016-07-21 11:25:28 -07:00
parent bd3dcf46e2
commit fcde6940e0
2 changed files with 24 additions and 36 deletions
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7
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/MiniDFSCluster.java
View File

@ -136,7 +136,7 @@ import com.google.common.collect.Sets;
*/
@InterfaceAudience.LimitedPrivate({"HBase", "HDFS", "Hive", "MapReduce", "Pig"})
@InterfaceStability.Unstable
public class MiniDFSCluster {
public class MiniDFSCluster implements AutoCloseable {
private static final String NAMESERVICE_ID_PREFIX = "nameserviceId";
private static final Log LOG = LogFactory.getLog(MiniDFSCluster.class);
@ -3057,4 +3057,9 @@ public class MiniDFSCluster {
writer.close();
}
}
@Override
public void close() {
shutdown();
}
}

53
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestMiniDFSCluster.java
View File

@ -64,22 +64,17 @@ public class TestMiniDFSCluster {
public void testClusterWithoutSystemProperties() throws Throwable {
String oldPrp = System.getProperty(MiniDFSCluster.PROP_TEST_BUILD_DATA);
System.clearProperty(MiniDFSCluster.PROP_TEST_BUILD_DATA);
MiniDFSCluster cluster = null;
try {
Configuration conf = new HdfsConfiguration();
File testDataCluster1 = new File(testDataPath, CLUSTER_1);
String c1Path = testDataCluster1.getAbsolutePath();
conf.set(MiniDFSCluster.HDFS_MINIDFS_BASEDIR, c1Path);
cluster = new MiniDFSCluster.Builder(conf).build();
Configuration conf = new HdfsConfiguration();
File testDataCluster1 = new File(testDataPath, CLUSTER_1);
String c1Path = testDataCluster1.getAbsolutePath();
conf.set(MiniDFSCluster.HDFS_MINIDFS_BASEDIR, c1Path);
try (MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).build()){
assertEquals(new File(c1Path + "/data"),
new File(cluster.getDataDirectory()));
} finally {
if (oldPrp != null) {
System.setProperty(MiniDFSCluster.PROP_TEST_BUILD_DATA, oldPrp);
}
if (cluster != null) {
cluster.shutdown();
}
}
}
@ -110,15 +105,12 @@ public class TestMiniDFSCluster {
File testDataCluster5 = new File(testDataPath, CLUSTER_5);
String c5Path = testDataCluster5.getAbsolutePath();
conf.set(MiniDFSCluster.HDFS_MINIDFS_BASEDIR, c5Path);
MiniDFSCluster cluster5 = new MiniDFSCluster.Builder(conf)
.numDataNodes(1)
.checkDataNodeHostConfig(true)
.build();
try {
try (MiniDFSCluster cluster5 = new MiniDFSCluster.Builder(conf)
.numDataNodes(1)
.checkDataNodeHostConfig(true)
.build()) {
assertEquals("DataNode hostname config not respected", "MYHOST",
cluster5.getDataNodes().get(0).getDatanodeId().getHostName());
} finally {
MiniDFSCluster.shutdownCluster(cluster5);
}
}
@ -128,9 +120,8 @@ public class TestMiniDFSCluster {
StorageType[][] storageType = new StorageType[][] {
{StorageType.DISK, StorageType.ARCHIVE}, {StorageType.DISK},
{StorageType.ARCHIVE}};
final MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf)
.numDataNodes(3).storageTypes(storageType).build();
try {
try (MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf)
.numDataNodes(3).storageTypes(storageType).build()) {
cluster.waitActive();
ArrayList<DataNode> dataNodes = cluster.getDataNodes();
// Check the number of directory in DN's
@ -138,17 +129,14 @@ public class TestMiniDFSCluster {
assertEquals(DataNode.getStorageLocations(dataNodes.get(i).getConf())
.size(), storageType[i].length);
}
} finally {
MiniDFSCluster.shutdownCluster(cluster);
}
}
@Test
public void testClusterNoStorageTypeSetForDatanodes() throws IOException {
final Configuration conf = new HdfsConfiguration();
final MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf)
.numDataNodes(3).build();
try {
try (final MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf)
.numDataNodes(3).build()) {
cluster.waitActive();
ArrayList<DataNode> dataNodes = cluster.getDataNodes();
// Check the number of directory in DN's
@ -156,20 +144,17 @@ public class TestMiniDFSCluster {
assertEquals(DataNode.getStorageLocations(datanode.getConf()).size(),
2);
}
} finally {
MiniDFSCluster.shutdownCluster(cluster);
}
}
@Test
public void testSetUpFederatedCluster() throws Exception {
Configuration conf = new Configuration();
MiniDFSCluster cluster =
new MiniDFSCluster.Builder(conf).nnTopology(
MiniDFSNNTopology.simpleHAFederatedTopology(2))
.numDataNodes(2)
.build();
try {
try (MiniDFSCluster cluster =
new MiniDFSCluster.Builder(conf)
.nnTopology(MiniDFSNNTopology.simpleHAFederatedTopology(2))
.numDataNodes(2).build()) {
cluster.waitActive();
cluster.transitionToActive(1);
cluster.transitionToActive(3);
@ -201,8 +186,6 @@ public class TestMiniDFSCluster {
DFSUtil.addKeySuffixes(
DFS_NAMENODE_HTTP_ADDRESS_KEY, "ns1", "nn1")));
}
} finally {
MiniDFSCluster.shutdownCluster(cluster);
}
}
}