/**
* Test for {@link DFSUtil#getNNServiceRpcAddresses(Configuration)} {@link
* DFSUtil#getNameServiceIdFromAddress(Configuration, InetSocketAddress, String...)
* (Configuration)}
*/
@Test
public void testMultipleNamenodes() throws IOException {
HdfsConfiguration conf = new HdfsConfiguration();
conf.set(DFS_NAMESERVICES, "nn1,nn2");
// Test - configured list of namenodes are returned
final String NN1_ADDRESS = "localhost:9000";
final String NN2_ADDRESS = "localhost:9001";
final String NN3_ADDRESS = "localhost:9002";
conf.set(DFSUtil.addKeySuffixes(DFS_NAMENODE_RPC_ADDRESS_KEY, "nn1"), NN1_ADDRESS);
conf.set(DFSUtil.addKeySuffixes(DFS_NAMENODE_RPC_ADDRESS_KEY, "nn2"), NN2_ADDRESS);
Map<String, Map<String, InetSocketAddress>> nnMap = DFSUtil.getNNServiceRpcAddresses(conf);
assertEquals(2, nnMap.size());
Map<String, InetSocketAddress> nn1Map = nnMap.get("nn1");
assertEquals(1, nn1Map.size());
InetSocketAddress addr = nn1Map.get(null);
assertEquals("localhost", addr.getHostName());
assertEquals(9000, addr.getPort());
Map<String, InetSocketAddress> nn2Map = nnMap.get("nn2");
assertEquals(1, nn2Map.size());
addr = nn2Map.get(null);
assertEquals("localhost", addr.getHostName());
assertEquals(9001, addr.getPort());
// Test - can look up nameservice ID from service address
checkNameServiceId(conf, NN1_ADDRESS, "nn1");
checkNameServiceId(conf, NN2_ADDRESS, "nn2");
checkNameServiceId(conf, NN3_ADDRESS, null);
// HA is not enabled in a purely federated config
assertFalse(HAUtil.isHAEnabled(conf, "nn1"));
assertFalse(HAUtil.isHAEnabled(conf, "nn2"));
}
/** Regression test for HDFS-2934. */
@Test
public void testSomeConfsNNSpecificSomeNSSpecific() {
final HdfsConfiguration conf = new HdfsConfiguration();
String key = DFSConfigKeys.DFS_NAMENODE_SHARED_EDITS_DIR_KEY;
conf.set(key, "global-default");
conf.set(key + ".ns1", "ns1-override");
conf.set(key + ".ns1.nn1", "nn1-override");
// A namenode in another nameservice should get the global default.
Configuration newConf = new Configuration(conf);
NameNode.initializeGenericKeys(newConf, "ns2", "nn1");
assertEquals("global-default", newConf.get(key));
// A namenode in another non-HA nameservice should get global default.
newConf = new Configuration(conf);
NameNode.initializeGenericKeys(newConf, "ns2", null);
assertEquals("global-default", newConf.get(key));
// A namenode in the same nameservice should get the ns setting
newConf = new Configuration(conf);
NameNode.initializeGenericKeys(newConf, "ns1", "nn2");
assertEquals("ns1-override", newConf.get(key));
// The nn with the nn-specific setting should get its own override
newConf = new Configuration(conf);
NameNode.initializeGenericKeys(newConf, "ns1", "nn1");
assertEquals("nn1-override", newConf.get(key));
}
/**
* Test {@link DFSUtil#getNamenodeNameServiceId(Configuration)} to ensure exception is thrown when
* multiple rpc addresses match the local node's address
*/
@Test(expected = HadoopIllegalArgumentException.class)
public void testGetNameServiceIdException() {
HdfsConfiguration conf = new HdfsConfiguration();
conf.set(DFS_NAMESERVICES, "nn1,nn2");
conf.set(DFSUtil.addKeySuffixes(DFS_NAMENODE_RPC_ADDRESS_KEY, "nn1"), "localhost:9000");
conf.set(DFSUtil.addKeySuffixes(DFS_NAMENODE_RPC_ADDRESS_KEY, "nn2"), "localhost:9001");
DFSUtil.getNamenodeNameServiceId(conf);
fail("Expected exception is not thrown");
}
@Test
public void testGetOnlyNameServiceIdOrNull() {
HdfsConfiguration conf = new HdfsConfiguration();
conf.set(DFS_NAMESERVICES, "ns1,ns2");
assertNull(DFSUtil.getOnlyNameServiceIdOrNull(conf));
conf.set(DFS_NAMESERVICES, "");
assertNull(DFSUtil.getOnlyNameServiceIdOrNull(conf));
conf.set(DFS_NAMESERVICES, "ns1");
assertEquals("ns1", DFSUtil.getOnlyNameServiceIdOrNull(conf));
}
/** Test {@link DFSUtil#getNameServiceIds(Configuration)} */
@Test
public void testGetNameServiceIds() {
HdfsConfiguration conf = new HdfsConfiguration();
conf.set(DFS_NAMESERVICES, "nn1,nn2");
Collection<String> nameserviceIds = DFSUtil.getNameServiceIds(conf);
Iterator<String> it = nameserviceIds.iterator();
assertEquals(2, nameserviceIds.size());
assertEquals("nn1", it.next().toString());
assertEquals("nn2", it.next().toString());
}
/**
* Ensure that fs.defaultFS is set in the configuration even if neither HA nor Federation is
* enabled.
*
* <p>Regression test for HDFS-3351.
*/
@Test
public void testConfModificationNoFederationOrHa() {
final HdfsConfiguration conf = new HdfsConfiguration();
String nsId = null;
String nnId = null;
conf.set(DFS_NAMENODE_RPC_ADDRESS_KEY, "localhost:1234");
assertFalse("hdfs://localhost:1234".equals(conf.get(FS_DEFAULT_NAME_KEY)));
NameNode.initializeGenericKeys(conf, nsId, nnId);
assertEquals("hdfs://localhost:1234", conf.get(FS_DEFAULT_NAME_KEY));
}
/** Tests to ensure default namenode is used as fallback */
@Test
public void testDefaultNamenode() throws IOException {
HdfsConfiguration conf = new HdfsConfiguration();
final String hdfs_default = "hdfs://localhost:9999/";
conf.set(FS_DEFAULT_NAME_KEY, hdfs_default);
// If DFS_FEDERATION_NAMESERVICES is not set, verify that
// default namenode address is returned.
Map<String, Map<String, InetSocketAddress>> addrMap = DFSUtil.getNNServiceRpcAddresses(conf);
assertEquals(1, addrMap.size());
Map<String, InetSocketAddress> defaultNsMap = addrMap.get(null);
assertEquals(1, defaultNsMap.size());
assertEquals(9999, defaultNsMap.get(null).getPort());
}
@Test
public void testGetInfoServer() throws IOException {
HdfsConfiguration conf = new HdfsConfiguration();
conf.set(HADOOP_SECURITY_AUTHENTICATION, "kerberos");
UserGroupInformation.setConfiguration(conf);
String httpsport = DFSUtil.getInfoServer(null, conf, true);
assertEquals("0.0.0.0:" + DFS_NAMENODE_HTTPS_PORT_DEFAULT, httpsport);
String httpport = DFSUtil.getInfoServer(null, conf, false);
assertEquals("0.0.0.0:" + DFS_NAMENODE_HTTP_PORT_DEFAULT, httpport);
String httpAddress =
DFSUtil.getInfoServer(new InetSocketAddress("localhost", 8020), conf, false);
assertEquals("localhost:" + DFS_NAMENODE_HTTP_PORT_DEFAULT, httpAddress);
}
/**
* Test to ensure nameservice specific keys in the configuration are copied to generic keys when
* the namenode starts.
*/
@Test
public void testConfModificationFederationAndHa() {
final HdfsConfiguration conf = new HdfsConfiguration();
String nsId = "ns1";
String nnId = "nn1";
conf.set(DFS_NAMESERVICES, nsId);
conf.set(DFS_NAMESERVICE_ID, nsId);
conf.set(DFS_HA_NAMENODES_KEY_PREFIX + "." + nsId, nnId);
// Set the nameservice specific keys with nameserviceId in the config key
for (String key : NameNode.NAMENODE_SPECIFIC_KEYS) {
// Note: value is same as the key
conf.set(DFSUtil.addKeySuffixes(key, nsId, nnId), key);
}
// Initialize generic keys from specific keys
NameNode.initializeGenericKeys(conf, nsId, nnId);
// Retrieve the keys without nameserviceId and Ensure generic keys are set
// to the correct value
for (String key : NameNode.NAMENODE_SPECIFIC_KEYS) {
assertEquals(key, conf.get(key));
}
}
@Test
public void testHANameNodesWithFederation() throws URISyntaxException {
HdfsConfiguration conf = new HdfsConfiguration();
final String NS1_NN1_HOST = "ns1-nn1.example.com:8020";
final String NS1_NN2_HOST = "ns1-nn2.example.com:8020";
final String NS2_NN1_HOST = "ns2-nn1.example.com:8020";
final String NS2_NN2_HOST = "ns2-nn2.example.com:8020";
conf.set(CommonConfigurationKeys.FS_DEFAULT_NAME_KEY, "hdfs://ns1");
// Two nameservices, each with two NNs.
conf.set(DFS_NAMESERVICES, "ns1,ns2");
conf.set(DFSUtil.addKeySuffixes(DFS_HA_NAMENODES_KEY_PREFIX, "ns1"), "ns1-nn1,ns1-nn2");
conf.set(DFSUtil.addKeySuffixes(DFS_HA_NAMENODES_KEY_PREFIX, "ns2"), "ns2-nn1,ns2-nn2");
conf.set(DFSUtil.addKeySuffixes(DFS_NAMENODE_RPC_ADDRESS_KEY, "ns1", "ns1-nn1"), NS1_NN1_HOST);
conf.set(DFSUtil.addKeySuffixes(DFS_NAMENODE_RPC_ADDRESS_KEY, "ns1", "ns1-nn2"), NS1_NN2_HOST);
conf.set(DFSUtil.addKeySuffixes(DFS_NAMENODE_RPC_ADDRESS_KEY, "ns2", "ns2-nn1"), NS2_NN1_HOST);
conf.set(DFSUtil.addKeySuffixes(DFS_NAMENODE_RPC_ADDRESS_KEY, "ns2", "ns2-nn2"), NS2_NN2_HOST);
Map<String, Map<String, InetSocketAddress>> map = DFSUtil.getHaNnRpcAddresses(conf);
assertTrue(HAUtil.isHAEnabled(conf, "ns1"));
assertTrue(HAUtil.isHAEnabled(conf, "ns2"));
assertFalse(HAUtil.isHAEnabled(conf, "ns3"));
assertEquals(NS1_NN1_HOST, map.get("ns1").get("ns1-nn1").toString());
assertEquals(NS1_NN2_HOST, map.get("ns1").get("ns1-nn2").toString());
assertEquals(NS2_NN1_HOST, map.get("ns2").get("ns2-nn1").toString());
assertEquals(NS2_NN2_HOST, map.get("ns2").get("ns2-nn2").toString());
assertEquals(NS1_NN1_HOST, DFSUtil.getNamenodeServiceAddr(conf, "ns1", "ns1-nn1"));
assertEquals(NS1_NN2_HOST, DFSUtil.getNamenodeServiceAddr(conf, "ns1", "ns1-nn2"));
assertEquals(NS2_NN1_HOST, DFSUtil.getNamenodeServiceAddr(conf, "ns2", "ns2-nn1"));
// No nameservice was given and we can't determine which service addr
// to use as two nameservices could share a namenode ID.
assertEquals(null, DFSUtil.getNamenodeServiceAddr(conf, null, "ns1-nn1"));
// Ditto for nameservice IDs, if multiple are defined
assertEquals(null, DFSUtil.getNamenodeNameServiceId(conf));
assertEquals(null, DFSUtil.getSecondaryNameServiceId(conf));
Collection<URI> uris = DFSUtil.getNameServiceUris(conf, DFS_NAMENODE_RPC_ADDRESS_KEY);
assertEquals(2, uris.size());
assertTrue(uris.contains(new URI("hdfs://ns1")));
assertTrue(uris.contains(new URI("hdfs://ns2")));
}
@Test
public void getNameNodeServiceAddr() throws IOException {
HdfsConfiguration conf = new HdfsConfiguration();
// One nameservice with two NNs
final String NS1_NN1_HOST = "ns1-nn1.example.com:8020";
final String NS1_NN1_HOST_SVC = "ns1-nn2.example.com:8021";
final String NS1_NN2_HOST = "ns1-nn1.example.com:8020";
final String NS1_NN2_HOST_SVC = "ns1-nn2.example.com:8021";
conf.set(DFS_NAMESERVICES, "ns1");
conf.set(DFSUtil.addKeySuffixes(DFS_HA_NAMENODES_KEY_PREFIX, "ns1"), "nn1,nn2");
conf.set(DFSUtil.addKeySuffixes(DFS_NAMENODE_RPC_ADDRESS_KEY, "ns1", "nn1"), NS1_NN1_HOST);
conf.set(DFSUtil.addKeySuffixes(DFS_NAMENODE_RPC_ADDRESS_KEY, "ns1", "nn2"), NS1_NN2_HOST);
// The rpc address is used if no service address is defined
assertEquals(NS1_NN1_HOST, DFSUtil.getNamenodeServiceAddr(conf, null, "nn1"));
assertEquals(NS1_NN2_HOST, DFSUtil.getNamenodeServiceAddr(conf, null, "nn2"));
// A nameservice is specified explicitly
assertEquals(NS1_NN1_HOST, DFSUtil.getNamenodeServiceAddr(conf, "ns1", "nn1"));
assertEquals(null, DFSUtil.getNamenodeServiceAddr(conf, "invalid", "nn1"));
// The service addrs are used when they are defined
conf.set(
DFSUtil.addKeySuffixes(DFS_NAMENODE_SERVICE_RPC_ADDRESS_KEY, "ns1", "nn1"),
NS1_NN1_HOST_SVC);
conf.set(
DFSUtil.addKeySuffixes(DFS_NAMENODE_SERVICE_RPC_ADDRESS_KEY, "ns1", "nn2"),
NS1_NN2_HOST_SVC);
assertEquals(NS1_NN1_HOST_SVC, DFSUtil.getNamenodeServiceAddr(conf, null, "nn1"));
assertEquals(NS1_NN2_HOST_SVC, DFSUtil.getNamenodeServiceAddr(conf, null, "nn2"));
// We can determine the nameservice ID, there's only one listed
assertEquals("ns1", DFSUtil.getNamenodeNameServiceId(conf));
assertEquals("ns1", DFSUtil.getSecondaryNameServiceId(conf));
}
private Configuration setupAddress(String key) {
HdfsConfiguration conf = new HdfsConfiguration();
conf.set(DFS_NAMESERVICES, "nn1");
conf.set(DFSUtil.addKeySuffixes(key, "nn1"), "localhost:9000");
return conf;
}
@Test
public void testGetNNUris() throws Exception {
HdfsConfiguration conf = new HdfsConfiguration();
final String NS1_NN1_ADDR = "ns1-nn1.example.com:8020";
final String NS1_NN2_ADDR = "ns1-nn2.example.com:8020";
final String NS2_NN_ADDR = "ns2-nn.example.com:8020";
final String NN1_ADDR = "nn.example.com:8020";
final String NN1_SRVC_ADDR = "nn.example.com:8021";
final String NN2_ADDR = "nn2.example.com:8020";
conf.set(DFS_NAMESERVICES, "ns1,ns2");
conf.set(DFSUtil.addKeySuffixes(DFS_HA_NAMENODES_KEY_PREFIX, "ns1"), "nn1,nn2");
conf.set(DFSUtil.addKeySuffixes(DFS_NAMENODE_RPC_ADDRESS_KEY, "ns1", "nn1"), NS1_NN1_ADDR);
conf.set(DFSUtil.addKeySuffixes(DFS_NAMENODE_RPC_ADDRESS_KEY, "ns1", "nn2"), NS1_NN2_ADDR);
conf.set(DFSUtil.addKeySuffixes(DFS_NAMENODE_SERVICE_RPC_ADDRESS_KEY, "ns2"), NS2_NN_ADDR);
conf.set(DFS_NAMENODE_RPC_ADDRESS_KEY, "hdfs://" + NN1_ADDR);
conf.set(CommonConfigurationKeys.FS_DEFAULT_NAME_KEY, "hdfs://" + NN2_ADDR);
Collection<URI> uris =
DFSUtil.getNameServiceUris(
conf, DFS_NAMENODE_SERVICE_RPC_ADDRESS_KEY, DFS_NAMENODE_RPC_ADDRESS_KEY);
assertEquals(4, uris.size());
assertTrue(uris.contains(new URI("hdfs://ns1")));
assertTrue(uris.contains(new URI("hdfs://" + NS2_NN_ADDR)));
assertTrue(uris.contains(new URI("hdfs://" + NN1_ADDR)));
assertTrue(uris.contains(new URI("hdfs://" + NN2_ADDR)));
// Make sure that non-HDFS URIs in fs.defaultFS don't get included.
conf.set(CommonConfigurationKeys.FS_DEFAULT_NAME_KEY, "viewfs://vfs-name.example.com");
uris =
DFSUtil.getNameServiceUris(
conf, DFS_NAMENODE_SERVICE_RPC_ADDRESS_KEY, DFS_NAMENODE_RPC_ADDRESS_KEY);
assertEquals(3, uris.size());
assertTrue(uris.contains(new URI("hdfs://ns1")));
assertTrue(uris.contains(new URI("hdfs://" + NS2_NN_ADDR)));
assertTrue(uris.contains(new URI("hdfs://" + NN1_ADDR)));
// Make sure that an HA URI being the default URI doesn't result in multiple
// entries being returned.
conf.set(CommonConfigurationKeys.FS_DEFAULT_NAME_KEY, "hdfs://ns1");
uris =
DFSUtil.getNameServiceUris(
conf, DFS_NAMENODE_SERVICE_RPC_ADDRESS_KEY, DFS_NAMENODE_RPC_ADDRESS_KEY);
assertEquals(3, uris.size());
assertTrue(uris.contains(new URI("hdfs://ns1")));
assertTrue(uris.contains(new URI("hdfs://" + NS2_NN_ADDR)));
assertTrue(uris.contains(new URI("hdfs://" + NN1_ADDR)));
// Make sure that when a service RPC address is used that is distinct from
// the client RPC address, and that client RPC address is also used as the
// default URI, that the client URI does not end up in the set of URIs
// returned.
conf = new HdfsConfiguration();
conf.set(CommonConfigurationKeys.FS_DEFAULT_NAME_KEY, "hdfs://" + NN1_ADDR);
conf.set(DFS_NAMENODE_RPC_ADDRESS_KEY, NN1_ADDR);
conf.set(DFS_NAMENODE_SERVICE_RPC_ADDRESS_KEY, NN1_SRVC_ADDR);
uris =
DFSUtil.getNameServiceUris(
conf, DFS_NAMENODE_SERVICE_RPC_ADDRESS_KEY, DFS_NAMENODE_RPC_ADDRESS_KEY);
assertEquals(1, uris.size());
assertTrue(uris.contains(new URI("hdfs://" + NN1_SRVC_ADDR)));
}
/**
* Test {@link DFSUtil#getNamenodeNameServiceId(Configuration)} to ensure nameserviceId from the
* configuration returned
*/
@Test
public void getNameServiceId() {
HdfsConfiguration conf = new HdfsConfiguration();
conf.set(DFS_NAMESERVICE_ID, "nn1");
assertEquals("nn1", DFSUtil.getNamenodeNameServiceId(conf));
}