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HDFS-4680. Audit logging of delegation tokens for MR tracing. (Andrew Wang) 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1522015 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Andrew Wang 2013-09-11 20:04:50 +00:00
parent 90f492e532
commit 1d4d1d8f70
7 changed files with 178 additions and 13 deletions
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19
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/token/TokenIdentifier.java
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@ -21,6 +21,7 @@
import java.io.IOException;
import java.util.Arrays;
import org.apache.commons.codec.digest.DigestUtils;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.io.DataOutputBuffer;
@ -35,6 +36,9 @@
@InterfaceAudience.LimitedPrivate({"HDFS", "MapReduce"})
@InterfaceStability.Evolving
public abstract class TokenIdentifier implements Writable {
private String trackingId = null;
/**
* Get the token kind
* @return the kind of the token
@ -62,4 +66,19 @@ public byte[] getBytes() {
}
return Arrays.copyOf(buf.getData(), buf.getLength());
}
/**
* Returns a tracking identifier that can be used to associate usages of a
* token across multiple client sessions.
*
* Currently, this function just returns an MD5 of {{@link #getBytes()}.
*
* @return tracking identifier
*/
public String getTrackingId() {
if (trackingId == null) {
trackingId = DigestUtils.md5Hex(getBytes());
}
return trackingId;
}
}

38
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/token/delegation/AbstractDelegationTokenSecretManager.java
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@ -86,6 +86,11 @@ class AbstractDelegationTokenSecretManager<TokenIdent
private long tokenMaxLifetime;
private long tokenRemoverScanInterval;
private long tokenRenewInterval;
/**
* Whether to store a token's tracking ID in its TokenInformation.
* Can be overridden by a subclass.
*/
protected boolean storeTokenTrackingId;
private Thread tokenRemoverThread;
protected volatile boolean running;
@ -102,6 +107,7 @@ public AbstractDelegationTokenSecretManager(long delegationKeyUpdateInterval,
this.tokenMaxLifetime = delegationTokenMaxLifetime;
this.tokenRenewInterval = delegationTokenRenewInterval;
this.tokenRemoverScanInterval = delegationTokenRemoverScanInterval;
this.storeTokenTrackingId = false;
}
/** should be called before this object is used */
@ -201,7 +207,7 @@ public synchronized void addPersistedDelegationToken(
}
if (currentTokens.get(identifier) == null) {
currentTokens.put(identifier, new DelegationTokenInformation(renewDate,
password));
password, getTrackingIdIfEnabled(identifier)));
} else {
throw new IOException(
"Same delegation token being added twice.");
@ -280,7 +286,7 @@ protected synchronized byte[] createPassword(TokenIdent identifier) {
byte[] password = createPassword(identifier.getBytes(), currentKey.getKey());
storeNewToken(identifier, now + tokenRenewInterval);
currentTokens.put(identifier, new DelegationTokenInformation(now
+ tokenRenewInterval, password));
+ tokenRenewInterval, password, getTrackingIdIfEnabled(identifier)));
return password;
}
@ -299,6 +305,21 @@ public synchronized byte[] retrievePassword(TokenIdent identifier)
return info.getPassword();
}
protected String getTrackingIdIfEnabled(TokenIdent ident) {
if (storeTokenTrackingId) {
return ident.getTrackingId();
}
return null;
}
public synchronized String getTokenTrackingId(TokenIdent identifier) {
DelegationTokenInformation info = currentTokens.get(identifier);
if (info == null) {
return null;
}
return info.getTrackingId();
}
/**
* Verifies that the given identifier and password are valid and match.
* @param identifier Token identifier.
@ -359,8 +380,9 @@ public synchronized long renewToken(Token<TokenIdent> token,
+ " is trying to renew a token with " + "wrong password");
}
long renewTime = Math.min(id.getMaxDate(), now + tokenRenewInterval);
String trackingId = getTrackingIdIfEnabled(id);
DelegationTokenInformation info = new DelegationTokenInformation(renewTime,
password);
password, trackingId);
if (currentTokens.get(id) == null) {
throw new InvalidToken("Renewal request for unknown token");
@ -420,9 +442,13 @@ public static SecretKey createSecretKey(byte[] key) {
public static class DelegationTokenInformation {
long renewDate;
byte[] password;
public DelegationTokenInformation(long renewDate, byte[] password) {
String trackingId;
public DelegationTokenInformation(long renewDate, byte[] password,
String trackingId) {
this.renewDate = renewDate;
this.password = password;
this.trackingId = trackingId;
}
/** returns renew date */
public long getRenewDate() {
@ -432,6 +458,10 @@ public long getRenewDate() {
byte[] getPassword() {
return password;
}
/** returns tracking id */
public String getTrackingId() {
return trackingId;
}
}
/** Remove expired delegation tokens from cache */

2
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -34,6 +34,8 @@ Release 2.3.0 - UNRELEASED
HDFS-4879. Add "blocked ArrayList" collection to avoid CMS full GCs
(Todd Lipcon via Colin Patrick McCabe)
HDFS-4680. Audit logging of delegation tokens for MR tracing. (Andrew Wang)
OPTIMIZATIONS
BUG FIXES

2
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
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@ -267,6 +267,8 @@ public class DFSConfigKeys extends CommonConfigurationKeys {
public static final String DFS_CLIENT_LOCAL_INTERFACES = "dfs.client.local.interfaces";
public static final String DFS_NAMENODE_AUDIT_LOGGERS_KEY = "dfs.namenode.audit.loggers";
public static final String DFS_NAMENODE_DEFAULT_AUDIT_LOGGER_NAME = "default";
public static final String DFS_NAMENODE_AUDIT_LOG_TOKEN_TRACKING_ID_KEY = "dfs.namenode.audit.log.token.tracking.id";
public static final boolean DFS_NAMENODE_AUDIT_LOG_TOKEN_TRACKING_ID_DEFAULT = false;
// Much code in hdfs is not yet updated to use these keys.
public static final String DFS_CLIENT_BLOCK_WRITE_LOCATEFOLLOWINGBLOCK_RETRIES_KEY = "dfs.client.block.write.locateFollowingBlock.retries";

18
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/security/token/delegation/DelegationTokenSecretManager.java
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@ -58,6 +58,15 @@ public class DelegationTokenSecretManager
.getLog(DelegationTokenSecretManager.class);
private final FSNamesystem namesystem;
public DelegationTokenSecretManager(long delegationKeyUpdateInterval,
long delegationTokenMaxLifetime, long delegationTokenRenewInterval,
long delegationTokenRemoverScanInterval, FSNamesystem namesystem) {
this(delegationKeyUpdateInterval, delegationTokenMaxLifetime,
delegationTokenRenewInterval, delegationTokenRemoverScanInterval, false,
namesystem);
}
/**
* Create a secret manager
* @param delegationKeyUpdateInterval the number of seconds for rolling new
@ -67,13 +76,16 @@ public class DelegationTokenSecretManager
* @param delegationTokenRenewInterval how often the tokens must be renewed
* @param delegationTokenRemoverScanInterval how often the tokens are scanned
* for expired tokens
* @param storeTokenTrackingId whether to store the token's tracking id
*/
public DelegationTokenSecretManager(long delegationKeyUpdateInterval,
long delegationTokenMaxLifetime, long delegationTokenRenewInterval,
long delegationTokenRemoverScanInterval, FSNamesystem namesystem) {
long delegationTokenRemoverScanInterval, boolean storeTokenTrackingId,
FSNamesystem namesystem) {
super(delegationKeyUpdateInterval, delegationTokenMaxLifetime,
delegationTokenRenewInterval, delegationTokenRemoverScanInterval);
this.namesystem = namesystem;
this.storeTokenTrackingId = storeTokenTrackingId;
}
@Override //SecretManager
@ -184,7 +196,7 @@ public synchronized void addPersistedDelegationToken(
}
if (currentTokens.get(identifier) == null) {
currentTokens.put(identifier, new DelegationTokenInformation(expiryTime,
password));
password, getTrackingIdIfEnabled(identifier)));
} else {
throw new IOException(
"Same delegation token being added twice; invalid entry in fsimage or editlogs");
@ -223,7 +235,7 @@ public synchronized void updatePersistedTokenRenewal(
byte[] password = createPassword(identifier.getBytes(), allKeys
.get(keyId).getKey());
currentTokens.put(identifier, new DelegationTokenInformation(expiryTime,
password));
password, getTrackingIdIfEnabled(identifier)));
}
}

46
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
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@ -36,6 +36,8 @@
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_ACCESSTIME_PRECISION_DEFAULT;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_ACCESSTIME_PRECISION_KEY;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_AUDIT_LOGGERS_KEY;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_AUDIT_LOG_TOKEN_TRACKING_ID_DEFAULT;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_AUDIT_LOG_TOKEN_TRACKING_ID_KEY;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_DEFAULT_AUDIT_LOGGER_NAME;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_DELEGATION_KEY_UPDATE_INTERVAL_DEFAULT;
import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_NAMENODE_DELEGATION_KEY_UPDATE_INTERVAL_KEY;
@ -220,6 +222,8 @@
import org.apache.hadoop.security.UserGroupInformation.AuthenticationMethod;
import org.apache.hadoop.security.token.SecretManager.InvalidToken;
import org.apache.hadoop.security.token.Token;
import org.apache.hadoop.security.token.TokenIdentifier;
import org.apache.hadoop.security.token.delegation.AbstractDelegationTokenIdentifier;
import org.apache.hadoop.security.token.delegation.DelegationKey;
import org.apache.hadoop.util.Daemon;
import org.apache.hadoop.util.DataChecksum;
@ -296,8 +300,14 @@ private void logAuditEvent(boolean succeeded,
stat.getGroup(), symlink, path);
}
for (AuditLogger logger : auditLoggers) {
logger.logAuditEvent(succeeded, ugi.toString(), addr,
cmd, src, dst, status);
if (logger instanceof HdfsAuditLogger) {
HdfsAuditLogger hdfsLogger = (HdfsAuditLogger) logger;
hdfsLogger.logAuditEvent(succeeded, ugi.toString(), addr, cmd, src, dst,
status, ugi, dtSecretManager);
} else {
logger.logAuditEvent(succeeded, ugi.toString(), addr,
cmd, src, dst, status);
}
}
}
@ -5889,7 +5899,10 @@ private DelegationTokenSecretManager createDelegationTokenSecretManager(
DFS_NAMENODE_DELEGATION_TOKEN_MAX_LIFETIME_DEFAULT),
conf.getLong(DFS_NAMENODE_DELEGATION_TOKEN_RENEW_INTERVAL_KEY,
DFS_NAMENODE_DELEGATION_TOKEN_RENEW_INTERVAL_DEFAULT),
DELEGATION_TOKEN_REMOVER_SCAN_INTERVAL, this);
DELEGATION_TOKEN_REMOVER_SCAN_INTERVAL,
conf.getBoolean(DFS_NAMENODE_AUDIT_LOG_TOKEN_TRACKING_ID_KEY,
DFS_NAMENODE_AUDIT_LOG_TOKEN_TRACKING_ID_DEFAULT),
this);
}
/**
@ -6800,17 +6813,22 @@ void removeSnapshottableDirs(List<INodeDirectorySnapshottable> toRemove) {
* defined in the config file. It can also be explicitly listed in the
* config file.
*/
private static class DefaultAuditLogger implements AuditLogger {
private static class DefaultAuditLogger extends HdfsAuditLogger {
private boolean logTokenTrackingId;
@Override
public void initialize(Configuration conf) {
// Nothing to do.
logTokenTrackingId = conf.getBoolean(
DFSConfigKeys.DFS_NAMENODE_AUDIT_LOG_TOKEN_TRACKING_ID_KEY,
DFSConfigKeys.DFS_NAMENODE_AUDIT_LOG_TOKEN_TRACKING_ID_DEFAULT);
}
@Override
public void logAuditEvent(boolean succeeded, String userName,
InetAddress addr, String cmd, String src, String dst,
FileStatus status) {
FileStatus status, UserGroupInformation ugi,
DelegationTokenSecretManager dtSecretManager) {
if (auditLog.isInfoEnabled()) {
final StringBuilder sb = auditBuffer.get();
sb.setLength(0);
@ -6828,6 +6846,22 @@ public void logAuditEvent(boolean succeeded, String userName,
sb.append(status.getGroup()).append(":");
sb.append(status.getPermission());
}
if (logTokenTrackingId) {
sb.append("\t").append("trackingId=");
String trackingId = null;
if (ugi != null && dtSecretManager != null
&& ugi.getAuthenticationMethod() == AuthenticationMethod.TOKEN) {
for (TokenIdentifier tid: ugi.getTokenIdentifiers()) {
if (tid instanceof DelegationTokenIdentifier) {
DelegationTokenIdentifier dtid =
(DelegationTokenIdentifier)tid;
trackingId = dtSecretManager.getTokenTrackingId(dtid);
break;
}
}
}
sb.append(trackingId);
}
auditLog.info(sb);
}
}

66
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/HdfsAuditLogger.java Normal file
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@ -0,0 +1,66 @@
/**
* 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.server.namenode;
import java.net.InetAddress;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.hdfs.security.token.delegation.DelegationTokenSecretManager;
import org.apache.hadoop.security.UserGroupInformation;
/**
* Extension of {@link AuditLogger}.
*/
@InterfaceAudience.Public
@InterfaceStability.Evolving
public abstract class HdfsAuditLogger implements AuditLogger {
@Override
public void logAuditEvent(boolean succeeded, String userName,
InetAddress addr, String cmd, String src, String dst,
FileStatus status) {
logAuditEvent(succeeded, userName, addr, cmd, src, dst, status, null,
null);
}
/**
* Same as
* {@link #logAuditEvent(boolean, String, InetAddress, String, String, String, FileStatus)}
* with additional parameters related to logging delegation token tracking
* IDs.
*
* @param succeeded Whether authorization succeeded.
* @param userName Name of the user executing the request.
* @param addr Remote address of the request.
* @param cmd The requested command.
* @param src Path of affected source file.
* @param dst Path of affected destination file (if any).
* @param stat File information for operations that change the file's metadata
* (permissions, owner, times, etc).
* @param ugi UserGroupInformation of the current user, or null if not logging
* token tracking information
* @param dtSecretManager The token secret manager, or null if not logging
* token tracking information
*/
public abstract void logAuditEvent(boolean succeeded, String userName,
InetAddress addr, String cmd, String src, String dst,
FileStatus stat, UserGroupInformation ugi,
DelegationTokenSecretManager dtSecretManager);
}