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HADOOP-8611. Allow fall-back to the shell-based implementation when JNI-based users-group mapping fails (Robert Parker via bobby) 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1375221 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Robert Joseph Evans 2012-08-20 21:17:13 +00:00
parent f58941f2ac
commit d5f080825c
4 changed files with 234 additions and 0 deletions
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3
hadoop-common-project/hadoop-common/CHANGES.txt
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@ -938,6 +938,9 @@ Release 0.23.3 - UNRELEASED
HADOOP-8695. TestPathData fails intermittently with JDK7 (Trevor
Robinson via tgraves)
HADOOP-8611. Allow fall-back to the shell-based implementation when
JNI-based users-group mapping fails (Robert Parker via bobby)
Release 0.23.2 - UNRELEASED
INCOMPATIBLE CHANGES

63
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/JniBasedUnixGroupsMappingWithFallback.java Normal file
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@ -0,0 +1,63 @@
/**
* 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.security;
import java.io.IOException;
import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.util.NativeCodeLoader;
public class JniBasedUnixGroupsMappingWithFallback implements
GroupMappingServiceProvider {
private static final Log LOG = LogFactory
.getLog(JniBasedUnixGroupsMappingWithFallback.class);
private GroupMappingServiceProvider impl;
public JniBasedUnixGroupsMappingWithFallback() {
if (NativeCodeLoader.isNativeCodeLoaded()) {
this.impl = new JniBasedUnixGroupsMapping();
} else {
LOG.info("Falling back to shell based");
this.impl = new ShellBasedUnixGroupsMapping();
}
if (LOG.isDebugEnabled()){
LOG.debug("Group mapping impl=" + impl.getClass().getName());
}
}
@Override
public List<String> getGroups(String user) throws IOException {
return impl.getGroups(user);
}
@Override
public void cacheGroupsRefresh() throws IOException {
impl.cacheGroupsRefresh();
}
@Override
public void cacheGroupsAdd(List<String> groups) throws IOException {
impl.cacheGroupsAdd(groups);
}
}

63
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/JniBasedUnixGroupsNetgroupMappingWithFallback.java Normal file
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@ -0,0 +1,63 @@
/**
* 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.security;
import java.io.IOException;
import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.util.NativeCodeLoader;
public class JniBasedUnixGroupsNetgroupMappingWithFallback implements
GroupMappingServiceProvider {
private static final Log LOG = LogFactory
.getLog(JniBasedUnixGroupsNetgroupMappingWithFallback.class);
private GroupMappingServiceProvider impl;
public JniBasedUnixGroupsNetgroupMappingWithFallback() {
if (NativeCodeLoader.isNativeCodeLoaded()) {
this.impl = new JniBasedUnixGroupsNetgroupMapping();
} else {
LOG.info("Falling back to shell based");
this.impl = new ShellBasedUnixGroupsNetgroupMapping();
}
if (LOG.isDebugEnabled()) {
LOG.debug("Group mapping impl=" + impl.getClass().getName());
}
}
@Override
public List<String> getGroups(String user) throws IOException {
return impl.getGroups(user);
}
@Override
public void cacheGroupsRefresh() throws IOException {
impl.cacheGroupsRefresh();
}
@Override
public void cacheGroupsAdd(List<String> groups) throws IOException {
impl.cacheGroupsAdd(groups);
}
}

105
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/security/TestGroupFallback.java Normal file
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@ -0,0 +1,105 @@
/**
* 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.security;
import static org.junit.Assert.assertTrue;
import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.CommonConfigurationKeys;
import org.apache.log4j.Level;
import org.apache.log4j.Logger;
import org.junit.Test;
public class TestGroupFallback {
public static final Log LOG = LogFactory.getLog(TestGroupFallback.class);
@Test
public void testGroupShell() throws Exception {
Logger.getRootLogger().setLevel(Level.DEBUG);
Configuration conf = new Configuration();
conf.set(CommonConfigurationKeys.HADOOP_SECURITY_GROUP_MAPPING,
"org.apache.hadoop.security.ShellBasedUnixGroupsMapping");
Groups groups = new Groups(conf);
String username = System.getProperty("user.name");
List<String> groupList = groups.getGroups(username);
LOG.info(username + " has GROUPS: " + groupList.toString());
assertTrue(groupList.size() > 0);
}
@Test
public void testNetgroupShell() throws Exception {
Logger.getRootLogger().setLevel(Level.DEBUG);
Configuration conf = new Configuration();
conf.set(CommonConfigurationKeys.HADOOP_SECURITY_GROUP_MAPPING,
"org.apache.hadoop.security.ShellBasedUnixGroupsNetgroupMapping");
Groups groups = new Groups(conf);
String username = System.getProperty("user.name");
List<String> groupList = groups.getGroups(username);
LOG.info(username + " has GROUPS: " + groupList.toString());
assertTrue(groupList.size() > 0);
}
@Test
public void testGroupWithFallback() throws Exception {
LOG.info("running 'mvn -Pnative -DTestGroupFallback clear test' will " +
"test the normal path and 'mvn -DTestGroupFallback clear test' will" +
" test the fall back functionality");
Logger.getRootLogger().setLevel(Level.DEBUG);
Configuration conf = new Configuration();
conf.set(CommonConfigurationKeys.HADOOP_SECURITY_GROUP_MAPPING,
"org.apache.hadoop.security.JniBasedUnixGroupsMappingWithFallback");
Groups groups = new Groups(conf);
String username = System.getProperty("user.name");
List<String> groupList = groups.getGroups(username);
LOG.info(username + " has GROUPS: " + groupList.toString());
assertTrue(groupList.size() > 0);
}
@Test
public void testNetgroupWithFallback() throws Exception {
LOG.info("running 'mvn -Pnative -DTestGroupFallback clear test' will " +
"test the normal path and 'mvn -DTestGroupFallback clear test' will" +
" test the fall back functionality");
Logger.getRootLogger().setLevel(Level.DEBUG);
Configuration conf = new Configuration();
conf.set(CommonConfigurationKeys.HADOOP_SECURITY_GROUP_MAPPING,
"org.apache.hadoop.security.JniBasedUnixGroupsNetgroupMappingWithFallback");
Groups groups = new Groups(conf);
String username = System.getProperty("user.name");
List<String> groupList = groups.getGroups(username);
LOG.info(username + " has GROUPS: " + groupList.toString());
assertTrue(groupList.size() > 0);
}
}