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https://issues.apache.org/jira/browse/HBASE-20993?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16571105#comment-16571105
]
Reid Chan commented on HBASE-20993:
-----------------------------------
My simple client code (snippet), fyi.
{code}
final Configuration conf = HBaseConfiguration.create();
conf.addResource("krb-hbase-site.xml");
UserGroupInformation.setConfiguration(conf);
UserGroupInformation.loginUserFromKeytab("whoever@REALM", keytabLocation);
UserGroupInformation user = UserGroupInformation.getLoginUser();
TableName tableName = TableName.valueOf("client_fall_back");
HTableDescriptor desc = new HTableDescriptor(tableName);
String family = "cfb";
HColumnDescriptor columnDescriptor = new HColumnDescriptor(family);
columnDescriptor.setInMemory(true);
desc.addFamily(columnDescriptor);
Connection connection = null;
Admin admin = null;
try {
connection = user.doAs(new PrivilegedExceptionAction<Connection>() {
@Override
public Connection run() throws Exception {
return ConnectionFactory.createConnection(conf);
}
});
admin = connection.getAdmin();
if (admin.tableExists(tableName)) {
admin.disableTable(tableName);
admin.deleteTable(tableName);
}
admin.createTable(desc);
System.out.println("Table created!");
} catch (InterruptedException e) {
System.err.println("Interrupted while creating connection.");
System.exit(1);
} finally {
if (connection != null) {
connection.close();
}
if (admin != null) {
admin.close();
}
}
{code}
> [Auth] IPC client fallback to simple auth allowed doesn't work
> --------------------------------------------------------------
>
> Key: HBASE-20993
> URL: https://issues.apache.org/jira/browse/HBASE-20993
> Project: HBase
> Issue Type: Bug
> Components: Client, security
> Affects Versions: 1.2.6
> Reporter: Reid Chan
> Assignee: Jack Bearden
> Priority: Critical
>
> It is easily reproducible.
> client's hbase-site.xml: hadoop.security.authentication:kerberos,
> hbase.security.authentication:kerberos,
> hbase.ipc.client.fallback-to-simple-auth-allowed:true, keytab and principal
> are right set
> A simple auth hbase cluster, a kerberized hbase client application.
> application trying to r/w/c/d table will have following exception:
> {code}
> javax.security.sasl.SaslException: GSS initiate failed [Caused by
> GSSException: No valid credentials provided (Mechanism level: Failed to find
> any Kerberos tgt)]
> at
> com.sun.security.sasl.gsskerb.GssKrb5Client.evaluateChallenge(GssKrb5Client.java:211)
> at
> org.apache.hadoop.hbase.security.HBaseSaslRpcClient.saslConnect(HBaseSaslRpcClient.java:179)
> at
> org.apache.hadoop.hbase.ipc.RpcClientImpl$Connection.setupSaslConnection(RpcClientImpl.java:617)
> at
> org.apache.hadoop.hbase.ipc.RpcClientImpl$Connection.access$700(RpcClientImpl.java:162)
> at
> org.apache.hadoop.hbase.ipc.RpcClientImpl$Connection$2.run(RpcClientImpl.java:743)
> at
> org.apache.hadoop.hbase.ipc.RpcClientImpl$Connection$2.run(RpcClientImpl.java:740)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:422)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1628)
> at
> org.apache.hadoop.hbase.ipc.RpcClientImpl$Connection.setupIOstreams(RpcClientImpl.java:740)
> at
> org.apache.hadoop.hbase.ipc.RpcClientImpl$Connection.writeRequest(RpcClientImpl.java:906)
> at
> org.apache.hadoop.hbase.ipc.RpcClientImpl$Connection.tracedWriteRequest(RpcClientImpl.java:873)
> at
> org.apache.hadoop.hbase.ipc.RpcClientImpl.call(RpcClientImpl.java:1241)
> at
> org.apache.hadoop.hbase.ipc.AbstractRpcClient.callBlockingMethod(AbstractRpcClient.java:227)
> at
> org.apache.hadoop.hbase.ipc.AbstractRpcClient$BlockingRpcChannelImplementation.callBlockingMethod(AbstractRpcClient.java:336)
> at
> org.apache.hadoop.hbase.protobuf.generated.MasterProtos$MasterService$BlockingStub.isMasterRunning(MasterProtos.java:58383)
> at
> org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation$MasterServiceStubMaker.isMasterRunning(ConnectionManager.java:1592)
> at
> org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation$StubMaker.makeStubNoRetries(ConnectionManager.java:1530)
> at
> org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation$StubMaker.makeStub(ConnectionManager.java:1552)
> at
> org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation$MasterServiceStubMaker.makeStub(ConnectionManager.java:1581)
> at
> org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.getKeepAliveMasterService(ConnectionManager.java:1738)
> at
> org.apache.hadoop.hbase.client.MasterCallable.prepare(MasterCallable.java:38)
> at
> org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithRetries(RpcRetryingCaller.java:134)
> at
> org.apache.hadoop.hbase.client.HBaseAdmin.executeCallable(HBaseAdmin.java:4297)
> at
> org.apache.hadoop.hbase.client.HBaseAdmin.executeCallable(HBaseAdmin.java:4289)
> at
> org.apache.hadoop.hbase.client.HBaseAdmin.createTableAsyncV2(HBaseAdmin.java:753)
> at
> org.apache.hadoop.hbase.client.HBaseAdmin.createTable(HBaseAdmin.java:674)
> at
> org.apache.hadoop.hbase.client.HBaseAdmin.createTable(HBaseAdmin.java:607)
> at
> org.playground.hbase.KerberizedClientFallback.main(KerberizedClientFallback.java:55)
> Caused by: GSSException: No valid credentials provided (Mechanism level:
> Failed to find any Kerberos tgt)
> at
> sun.security.jgss.krb5.Krb5InitCredential.getInstance(Krb5InitCredential.java:147)
> at
> sun.security.jgss.krb5.Krb5MechFactory.getCredentialElement(Krb5MechFactory.java:122)
> at
> sun.security.jgss.krb5.Krb5MechFactory.getMechanismContext(Krb5MechFactory.java:187)
> at
> sun.security.jgss.GSSManagerImpl.getMechanismContext(GSSManagerImpl.java:224)
> at
> sun.security.jgss.GSSContextImpl.initSecContext(GSSContextImpl.java:212)
> at
> sun.security.jgss.GSSContextImpl.initSecContext(GSSContextImpl.java:179)
> at
> com.sun.security.sasl.gsskerb.GssKrb5Client.evaluateChallenge(GssKrb5Client.java:192)
> {code}
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