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HDFS-5363. Refactor WebHdfsFileSystem: move SPENGO-authenticated connection creation to URLConnectionFactory. Contributed by Haohui Mai. 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1535169 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Jing Zhao 2013-10-23 20:48:25 +00:00
parent f09c52bb7c
commit 1387fb1394
5 changed files with 146 additions and 45 deletions
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3
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -335,6 +335,9 @@ Release 2.3.0 - UNRELEASED
HDFS-4885. Improve the verifyBlockPlacement() API in BlockPlacementPolicy.
(Junping Du via szetszwo)
HDFS-5363. Refactor WebHdfsFileSystem: move SPENGO-authenticated connection
creation to URLConnectionFactory. (Haohui Mai via jing9)
OPTIMIZATIONS
HDFS-5239. Allow FSNamesystem lock fairness to be configurable (daryn)

85
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/web/URLConnectionFactory.java
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@ -19,49 +19,114 @@
package org.apache.hadoop.hdfs.web;
import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.hdfs.web.resources.HttpOpParam;
import org.apache.hadoop.security.UserGroupInformation;
import org.apache.hadoop.security.authentication.client.AuthenticatedURL;
import org.apache.hadoop.security.authentication.client.AuthenticationException;
import org.apache.hadoop.security.authentication.client.ConnectionConfigurator;
/**
* Utilities for handling URLs
*/
@InterfaceAudience.LimitedPrivate({"HDFS"})
@InterfaceAudience.LimitedPrivate({ "HDFS" })
@InterfaceStability.Unstable
public class URLConnectionFactory {
private static final Log LOG = LogFactory.getLog(URLConnectionFactory.class);
/** SPNEGO authenticator */
private static final KerberosUgiAuthenticator AUTH = new KerberosUgiAuthenticator();
/**
* Timeout for socket connects and reads
*/
public final static int DEFAULT_SOCKET_TIMEOUT = 1*60*1000; // 1 minute
public final static int DEFAULT_SOCKET_TIMEOUT = 1 * 60 * 1000; // 1 minute
public static final URLConnectionFactory DEFAULT_CONNECTION_FACTORY = new URLConnectionFactory(
DEFAULT_SOCKET_TIMEOUT);
public static final URLConnectionFactory DEFAULT_CONNECTION_FACTORY = new URLConnectionFactory(DEFAULT_SOCKET_TIMEOUT);
private int socketTimeout;
/** Configure connections for AuthenticatedURL */
private ConnectionConfigurator connConfigurator = new ConnectionConfigurator() {
@Override
public HttpURLConnection configure(HttpURLConnection conn)
throws IOException {
URLConnectionFactory.setTimeouts(conn, socketTimeout);
return conn;
}
};
public URLConnectionFactory(int socketTimeout) {
this.socketTimeout = socketTimeout;
}
/**
* Opens a url with read and connect timeouts
* @param url to open
*
* @param url
* to open
* @return URLConnection
* @throws IOException
*/
public URLConnection openConnection(URL url) throws IOException {
URLConnection connection = url.openConnection();
setTimeouts(connection);
return connection;
if (connection instanceof HttpURLConnection) {
connConfigurator.configure((HttpURLConnection) connection);
}
return connection;
}
/**
* Opens a url with read and connect timeouts
*
* @param url URL to open
* @return URLConnection
* @throws IOException
* @throws AuthenticationException
*/
public URLConnection openConnection(HttpOpParam.Op op, URL url)
throws IOException, AuthenticationException {
if (op.getRequireAuth()) {
if (LOG.isDebugEnabled()) {
LOG.debug("open AuthenticatedURL connection" + url);
}
UserGroupInformation.getCurrentUser().checkTGTAndReloginFromKeytab();
final AuthenticatedURL.Token authToken = new AuthenticatedURL.Token();
return new AuthenticatedURL(AUTH, connConfigurator).openConnection(url,
authToken);
} else {
if (LOG.isDebugEnabled()) {
LOG.debug("open URL connection");
}
return openConnection(url);
}
}
public ConnectionConfigurator getConnConfigurator() {
return connConfigurator;
}
public void setConnConfigurator(ConnectionConfigurator connConfigurator) {
this.connConfigurator = connConfigurator;
}
/**
* Sets timeout parameters on the given URLConnection.
*
* @param connection URLConnection to set
* @param connection
* URLConnection to set
* @param socketTimeout
* the connection and read timeout of the connection.
*/
public void setTimeouts(URLConnection connection) {
static void setTimeouts(URLConnection connection, int socketTimeout) {
connection.setConnectTimeout(socketTimeout);
connection.setReadTimeout(socketTimeout);
}

41
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/web/WebHdfsFileSystem.java
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@ -94,9 +94,7 @@ import org.apache.hadoop.ipc.RemoteException;
import org.apache.hadoop.net.NetUtils;
import org.apache.hadoop.security.SecurityUtil;
import org.apache.hadoop.security.UserGroupInformation;
import org.apache.hadoop.security.authentication.client.AuthenticatedURL;
import org.apache.hadoop.security.authentication.client.AuthenticationException;
import org.apache.hadoop.security.authentication.client.ConnectionConfigurator;
import org.apache.hadoop.security.token.Token;
import org.apache.hadoop.security.token.TokenIdentifier;
import org.apache.hadoop.security.token.TokenRenewer;
@ -119,20 +117,9 @@ public class WebHdfsFileSystem extends FileSystem
/** Http URI: http://namenode:port/{PATH_PREFIX}/path/to/file */
public static final String PATH_PREFIX = "/" + SCHEME + "/v" + VERSION;
/** SPNEGO authenticator */
private static final KerberosUgiAuthenticator AUTH = new KerberosUgiAuthenticator();
/** Default connection factory may be overridden in tests to use smaller timeout values */
URLConnectionFactory connectionFactory = URLConnectionFactory.DEFAULT_CONNECTION_FACTORY;
/** Configures connections for AuthenticatedURL */
private final ConnectionConfigurator CONN_CONFIGURATOR =
new ConnectionConfigurator() {
@Override
public HttpURLConnection configure(HttpURLConnection conn)
throws IOException {
connectionFactory.setTimeouts(conn);
return conn;
}
};
/** Delegation token kind */
public static final Text TOKEN_KIND = new Text("WEBHDFS delegation");
/** Token selector */
@ -504,16 +491,7 @@ public class WebHdfsFileSystem extends FileSystem
throws IOException {
final HttpURLConnection conn;
try {
if (op.getRequireAuth()) {
LOG.debug("open AuthenticatedURL connection");
UserGroupInformation.getCurrentUser().checkTGTAndReloginFromKeytab();
final AuthenticatedURL.Token authToken = new AuthenticatedURL.Token();
conn = new AuthenticatedURL(AUTH, CONN_CONFIGURATOR).openConnection(
url, authToken);
} else {
LOG.debug("open URL connection");
conn = (HttpURLConnection)connectionFactory.openConnection(url);
}
conn = (HttpURLConnection) connectionFactory.openConnection(op, url);
} catch (AuthenticationException e) {
throw new IOException(e);
}
@ -635,8 +613,10 @@ public class WebHdfsFileSystem extends FileSystem
checkRetry = false;
//Step 2) Submit another Http request with the URL from the Location header with data.
conn = (HttpURLConnection)connectionFactory.openConnection(new URL(redirect));
conn.setRequestProperty("Content-Type", MediaType.APPLICATION_OCTET_STREAM);
conn = (HttpURLConnection) connectionFactory.openConnection(new URL(
redirect));
conn.setRequestProperty("Content-Type",
MediaType.APPLICATION_OCTET_STREAM);
conn.setChunkedStreamingMode(32 << 10); //32kB-chunk
connect();
return conn;
@ -658,7 +638,8 @@ public class WebHdfsFileSystem extends FileSystem
disconnect();
checkRetry = false;
conn = (HttpURLConnection)connectionFactory.openConnection(new URL(redirect));
conn = (HttpURLConnection) connectionFactory.openConnection(new URL(
redirect));
connect();
}
@ -892,12 +873,6 @@ public class WebHdfsFileSystem extends FileSystem
.write(bufferSize);
}
@SuppressWarnings("deprecation")
@Override
public boolean delete(final Path f) throws IOException {
return delete(f, true);
}
@Override
public boolean delete(Path f, boolean recursive) throws IOException {
final HttpOpParam.Op op = DeleteOpParam.Op.DELETE;

54
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/web/TestURLConnectionFactory.java Normal file
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@ -0,0 +1,54 @@
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.hdfs.web;
import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.List;
import junit.framework.Assert;
import org.apache.hadoop.security.authentication.client.ConnectionConfigurator;
import org.junit.Test;
import com.google.common.collect.Lists;
public final class TestURLConnectionFactory {
@Test
public void testConnConfiguratior() throws IOException {
final URL u = new URL("http://localhost");
final List<HttpURLConnection> conns = Lists.newArrayList();
URLConnectionFactory fc = new URLConnectionFactory(
URLConnectionFactory.DEFAULT_SOCKET_TIMEOUT);
fc.setConnConfigurator(new ConnectionConfigurator() {
@Override
public HttpURLConnection configure(HttpURLConnection conn)
throws IOException {
Assert.assertEquals(u, conn.getURL());
conns.add(conn);
return conn;
}
});
fc.openConnection(u);
Assert.assertEquals(1, conns.size());
}
}

8
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/web/TestWebHdfsTimeouts.java
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@ -25,9 +25,11 @@ import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.SocketAddress;
import java.net.SocketTimeoutException;
import java.nio.channels.SocketChannel;
import java.util.ArrayList;
@ -41,6 +43,7 @@ import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hdfs.DFSConfigKeys;
import org.apache.hadoop.hdfs.server.namenode.NameNode;
import org.apache.hadoop.io.IOUtils;
import org.apache.hadoop.net.NetUtils;
@ -71,8 +74,9 @@ public class TestWebHdfsTimeouts {
@Before
public void setUp() throws Exception {
Configuration conf = WebHdfsTestUtil.createConf();
nnHttpAddress = NameNode.getHttpAddress(conf);
serverSocket = new ServerSocket(nnHttpAddress.getPort(), CONNECTION_BACKLOG);
serverSocket = new ServerSocket(0, CONNECTION_BACKLOG);
nnHttpAddress = new InetSocketAddress("localhost", serverSocket.getLocalPort());
conf.set(DFSConfigKeys.DFS_NAMENODE_HTTP_ADDRESS_KEY, "localhost:" + serverSocket.getLocalPort());
fs = WebHdfsTestUtil.getWebHdfsFileSystem(conf);
fs.connectionFactory = connectionFactory;
clients = new ArrayList<SocketChannel>();