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HDFS-6776. Using distcp to copy data between insecure and secure cluster via webdhfs doesn't work. (yzhangal via tucu)

This commit is contained in:
Alejandro Abdelnur 2014-09-09 22:16:42 -07:00
parent 7d9c45f778
commit 16a4558fda
5 changed files with 65 additions and 3 deletions
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3
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -481,6 +481,9 @@ Release 2.6.0 - UNRELEASED
HDFS-6986. DistributedFileSystem must get delegation tokens from configured
KeyProvider. (zhz via tucu)
HDFS-6776. Using distcp to copy data between insecure and secure cluster via webdhfs
doesn't work. (yzhangal via tucu)
Release 2.5.1 - UNRELEASED
INCOMPATIBLE CHANGES

3
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/security/token/delegation/DelegationTokenSecretManager.java
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@ -402,8 +402,7 @@ public class DelegationTokenSecretManager
final Token<DelegationTokenIdentifier> token = namenode.getRpcServer(
).getDelegationToken(new Text(renewer));
if (token == null) {
throw new IOException("Failed to get the token for " + renewer
+ ", user=" + ugi.getShortUserName());
return null;
}
final InetSocketAddress addr = namenode.getNameNodeAddress();

3
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/web/resources/NamenodeWebHdfsMethods.java
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@ -283,6 +283,9 @@ public class NamenodeWebHdfsMethods {
final String renewer) throws IOException {
final Credentials c = DelegationTokenSecretManager.createCredentials(
namenode, ugi, renewer != null? renewer: ugi.getShortUserName());
if (c == null) {
return null;
}
final Token<? extends TokenIdentifier> t = c.getAllTokens().iterator().next();
Text kind = request.getScheme().equals("http") ? WebHdfsFileSystem.TOKEN_KIND
: SWebHdfsFileSystem.TOKEN_KIND;

18
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/web/WebHdfsFileSystem.java
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@ -41,6 +41,7 @@ import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.BlockLocation;
import org.apache.hadoop.fs.CommonConfigurationKeys;
import org.apache.hadoop.fs.ContentSummary;
import org.apache.hadoop.fs.DelegationTokenRenewer;
import org.apache.hadoop.fs.FSDataInputStream;
@ -102,6 +103,11 @@ public class WebHdfsFileSystem extends FileSystem
/** Delegation token kind */
public static final Text TOKEN_KIND = new Text("WEBHDFS delegation");
@VisibleForTesting
public static final String CANT_FALLBACK_TO_INSECURE_MSG =
"The client is configured to only allow connecting to secure cluster";
private boolean canRefreshDelegationToken;
private UserGroupInformation ugi;
@ -112,6 +118,7 @@ public class WebHdfsFileSystem extends FileSystem
private Path workingDir;
private InetSocketAddress nnAddrs[];
private int currentNNAddrIndex;
private boolean disallowFallbackToInsecureCluster;
/**
* Return the protocol scheme for the FileSystem.
@ -193,6 +200,9 @@ public class WebHdfsFileSystem extends FileSystem
this.workingDir = getHomeDirectory();
this.canRefreshDelegationToken = UserGroupInformation.isSecurityEnabled();
this.disallowFallbackToInsecureCluster = !conf.getBoolean(
CommonConfigurationKeys.IPC_CLIENT_FALLBACK_TO_SIMPLE_AUTH_ALLOWED_KEY,
CommonConfigurationKeys.IPC_CLIENT_FALLBACK_TO_SIMPLE_AUTH_ALLOWED_DEFAULT);
this.delegationToken = null;
}
@ -1294,7 +1304,13 @@ public class WebHdfsFileSystem extends FileSystem
return JsonUtil.toDelegationToken(json);
}
}.run();
token.setService(tokenServiceName);
if (token != null) {
token.setService(tokenServiceName);
} else {
if (disallowFallbackToInsecureCluster) {
throw new AccessControlException(CANT_FALLBACK_TO_INSECURE_MSG);
}
}
return token;
}

41
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/web/TestWebHDFS.java
View File

@ -29,6 +29,7 @@ import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.commons.logging.impl.Log4JLogger;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.CommonConfigurationKeys;
import org.apache.hadoop.fs.FSDataInputStream;
import org.apache.hadoop.fs.FSDataOutputStream;
import org.apache.hadoop.fs.FileSystem;
@ -45,6 +46,7 @@ import org.apache.hadoop.hdfs.server.namenode.snapshot.SnapshotTestHelper;
import org.apache.hadoop.hdfs.server.namenode.web.resources.NamenodeWebHdfsMethods;
import org.apache.hadoop.hdfs.server.protocol.NamenodeProtocols;
import org.apache.hadoop.ipc.RetriableException;
import org.apache.hadoop.security.AccessControlException;
import org.apache.hadoop.security.UserGroupInformation;
import org.apache.hadoop.test.GenericTestUtils;
import org.apache.log4j.Level;
@ -482,4 +484,43 @@ public class TestWebHDFS {
}
}
}
@Test
public void testDTInInsecureClusterWithFallback()
throws IOException, URISyntaxException {
MiniDFSCluster cluster = null;
final Configuration conf = WebHdfsTestUtil.createConf();
conf.setBoolean(CommonConfigurationKeys
.IPC_CLIENT_FALLBACK_TO_SIMPLE_AUTH_ALLOWED_KEY, true);
try {
cluster = new MiniDFSCluster.Builder(conf).numDataNodes(0).build();
final FileSystem webHdfs = WebHdfsTestUtil.getWebHdfsFileSystem(conf,
WebHdfsFileSystem.SCHEME);
Assert.assertNull(webHdfs.getDelegationToken(null));
} finally {
if (cluster != null) {
cluster.shutdown();
}
}
}
@Test
public void testDTInInsecureCluster() throws Exception {
MiniDFSCluster cluster = null;
final Configuration conf = WebHdfsTestUtil.createConf();
try {
cluster = new MiniDFSCluster.Builder(conf).numDataNodes(0).build();
final FileSystem webHdfs = WebHdfsTestUtil.getWebHdfsFileSystem(conf,
WebHdfsFileSystem.SCHEME);
webHdfs.getDelegationToken(null);
fail("No exception is thrown.");
} catch (AccessControlException ace) {
Assert.assertTrue(ace.getMessage().startsWith(
WebHdfsFileSystem.CANT_FALLBACK_TO_INSECURE_MSG));
} finally {
if (cluster != null) {
cluster.shutdown();
}
}
}
}