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HDFS-2418. Change ConfiguredFailoverProxyProvider to take advantage of HDFS-2231. (atm) 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/HDFS-1623@1190078 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Aaron Myers 2011-10-27 23:15:07 +00:00
parent ebb6cc60c4
commit 180646dea3
5 changed files with 66 additions and 33 deletions
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2
hadoop-hdfs-project/hadoop-hdfs/CHANGES.HDFS-1623.txt
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@ -15,3 +15,5 @@ HDFS-1973. HA: HDFS clients must handle namenode failover and switch over to the
HDFS-2301. Start/stop appropriate namenode services when transition to active and standby states. (suresh)
HDFS-2231. Configuration changes for HA namenode. (suresh)
HDFS-2418. Change ConfiguredFailoverProxyProvider to take advantage of HDFS-2231. (atm)

48
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSUtil.java
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@ -406,19 +406,53 @@ public class DFSUtil {
}
// Get configuration suffixed with nameserviceId and/or namenodeId
for (String nameserviceId : nameserviceIds) {
for (String nnId : namenodeIds) {
String keySuffix = concatSuffixes(nameserviceId, nnId);
String address = getConfValue(null, keySuffix, conf, keys);
if (address == null) {
return null;
if (federationEnabled && haEnabled) {
for (String nameserviceId : nameserviceIds) {
for (String nnId : namenodeIds) {
String keySuffix = concatSuffixes(nameserviceId, nnId);
String address = getConfValue(null, keySuffix, conf, keys);
if (address != null) {
isas.add(NetUtils.createSocketAddr(address));
}
}
isas.add(NetUtils.createSocketAddr(address));
}
} else if (!federationEnabled && haEnabled) {
for (String nnId : namenodeIds) {
String address = getConfValue(null, nnId, conf, keys);
if (address != null) {
isas.add(NetUtils.createSocketAddr(address));
}
}
} else if (federationEnabled && !haEnabled) {
for (String nameserviceId : nameserviceIds) {
String address = getConfValue(null, nameserviceId, conf, keys);
if (address != null) {
isas.add(NetUtils.createSocketAddr(address));
}
}
}
return isas;
}
/**
* Returns list of InetSocketAddress corresponding to HA NN RPC addresses from
* the configuration.
*
* @param conf configuration
* @return list of InetSocketAddresses
* @throws IOException if no addresses are configured
*/
public static List<InetSocketAddress> getHaNnRpcAddresses(
Configuration conf) throws IOException {
List<InetSocketAddress> addressList = getAddresses(conf, null,
DFSConfigKeys.DFS_NAMENODE_RPC_ADDRESS_KEY);
if (addressList == null) {
throw new IOException("Incorrect configuration: HA name node addresses "
+ DFS_NAMENODE_RPC_ADDRESS_KEY + " is not configured.");
}
return addressList;
}
/**
* Returns list of InetSocketAddress corresponding to backup node rpc
* addresses from the configuration.

2
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/HAUtil.java
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@ -64,7 +64,7 @@ public class HAUtil {
DFSUtil.LOCAL_ADDRESS_MATCHER)[1];
if (namenodeId == null) {
String msg = "Configuration " + DFS_NAMENODE_RPC_ADDRESS_KEY +
" must be suffixed with" + " namenodeId for HA configuration.";
" must be suffixed with" + namenodeId + " for HA configuration.";
throw new HadoopIllegalArgumentException(msg);
}
return namenodeId;

23
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/ha/ConfiguredFailoverProxyProvider.java
View File

@ -19,8 +19,6 @@ package org.apache.hadoop.hdfs.server.namenode.ha;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
@ -31,7 +29,6 @@ import org.apache.hadoop.conf.Configurable;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hdfs.DFSUtil;
import org.apache.hadoop.hdfs.protocol.ClientProtocol;
import org.apache.hadoop.hdfs.server.namenode.NameNode;
import org.apache.hadoop.io.retry.FailoverProxyProvider;
import org.apache.hadoop.ipc.RPC;
import org.apache.hadoop.security.UserGroupInformation;
@ -44,9 +41,6 @@ import org.apache.hadoop.security.UserGroupInformation;
public class ConfiguredFailoverProxyProvider implements FailoverProxyProvider,
Configurable {
public static final String CONFIGURED_NAMENODE_ADDRESSES
= "dfs.ha.namenode.addresses";
private static final Log LOG =
LogFactory.getLog(ConfiguredFailoverProxyProvider.class);
@ -93,22 +87,13 @@ public class ConfiguredFailoverProxyProvider implements FailoverProxyProvider,
try {
ugi = UserGroupInformation.getCurrentUser();
Collection<String> addresses = conf.getTrimmedStringCollection(
CONFIGURED_NAMENODE_ADDRESSES);
if (addresses == null || addresses.size() == 0) {
throw new RuntimeException(this.getClass().getSimpleName() +
" is configured but " + CONFIGURED_NAMENODE_ADDRESSES +
" is not set.");
}
for (String address : addresses) {
proxies.add(new AddressRpcProxyPair(
NameNode.getAddress(new URI(address).getAuthority())));
Collection<InetSocketAddress> addresses = DFSUtil.getHaNnRpcAddresses(
conf);
for (InetSocketAddress address : addresses) {
proxies.add(new AddressRpcProxyPair(address));
}
} catch (IOException e) {
throw new RuntimeException(e);
} catch (URISyntaxException e) {
throw new RuntimeException("Malformed URI set in " +
CONFIGURED_NAMENODE_ADDRESSES, e);
}
}

22
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestDFSClientFailover.java
View File

@ -18,6 +18,8 @@
package org.apache.hadoop.hdfs;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_CLIENT_FAILOVER_PROXY_PROVIDER_KEY_PREFIX;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_HA_NAMENODES_KEY;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_RPC_ADDRESS_KEY;
import java.io.IOException;
import java.io.OutputStream;
@ -59,9 +61,16 @@ public class TestDFSClientFailover {
// changed to exercise that.
@Test
public void testDfsClientFailover() throws IOException, URISyntaxException {
final String nameServiceId = "name-service-uri";
final String logicalNameNodeId = "ha-nn-uri";
InetSocketAddress nnAddr1 = cluster.getNameNode(0).getNameNodeAddress();
InetSocketAddress nnAddr2 = cluster.getNameNode(1).getNameNodeAddress();
String nameServiceId1 = DFSUtil.getNameServiceIdFromAddress(conf, nnAddr1,
DFS_NAMENODE_RPC_ADDRESS_KEY);
String nameServiceId2 = DFSUtil.getNameServiceIdFromAddress(conf, nnAddr2,
DFS_NAMENODE_RPC_ADDRESS_KEY);
String nameNodeId1 = "nn1";
String nameNodeId2 = "nn2";
ClientProtocol nn1 = DFSUtil.createNamenode(nnAddr1, conf);
ClientProtocol nn2 = DFSUtil.createNamenode(nnAddr2, conf);
@ -78,13 +87,16 @@ public class TestDFSClientFailover {
String address1 = "hdfs://" + nnAddr1.getHostName() + ":" + nnAddr1.getPort();
String address2 = "hdfs://" + nnAddr2.getHostName() + ":" + nnAddr2.getPort();
conf.set(ConfiguredFailoverProxyProvider.CONFIGURED_NAMENODE_ADDRESSES,
address1 + "," + address2);
conf.set(DFSUtil.addKeySuffixes(DFS_NAMENODE_RPC_ADDRESS_KEY,
nameServiceId1, nameNodeId1), address1);
conf.set(DFSUtil.addKeySuffixes(DFS_NAMENODE_RPC_ADDRESS_KEY,
nameServiceId2, nameNodeId2), address2);
conf.set(DFS_CLIENT_FAILOVER_PROXY_PROVIDER_KEY_PREFIX + "." + nameServiceId,
conf.set(DFS_HA_NAMENODES_KEY, nameNodeId1 + "," + nameNodeId2);
conf.set(DFS_CLIENT_FAILOVER_PROXY_PROVIDER_KEY_PREFIX + "." + logicalNameNodeId,
ConfiguredFailoverProxyProvider.class.getName());
FileSystem fs = FileSystem.get(new URI("hdfs://" + nameServiceId), conf);
FileSystem fs = FileSystem.get(new URI("hdfs://" + logicalNameNodeId), conf);
AppendTestUtil.check(fs, TEST_FILE, FILE_LENGTH_TO_VERIFY);
cluster.getNameNode(0).stop();