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SYMPTOM:

hive CLI is in hung state for so long, an impatient user did CRTL+C to exit of it and complain about the hive CLI slowness.

ROOT CAUSE:

user is running hive CLI in Kerberos enabled security, we asked them to enable debug logging at the console using hive --hiveconf hive.root.logger=debug,console and saw the following GSS exception due to ticket expiration.

WARN hive.metastore: Failed to connect to the MetaStore Server...
org.apache.thrift.transport.TTransportException: GSS initiate failed
	at org.apache.thrift.transport.TSaslTransport.sendAndThrowMessage(TSaslTransport.java:232)
	at org.apache.thrift.transport.TSaslTransport.open(TSaslTransport.java:316)
	at org.apache.thrift.transport.TSaslClientTransport.open(TSaslClientTransport.java:37)
	at org.apache.hadoop.hive.thrift.client.TUGIAssumingTransport$1.run(TUGIAssumingTransport.java:52)
	at org.apache.hadoop.hive.thrift.client.TUGIAssumingTransport$1.run(TUGIAssumingTransport.java:49)
	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:1709)
	at org.apache.hadoop.hive.thrift.client.TUGIAssumingTransport.open(TUGIAssumingTransport.java:49)
	at org.apache.hadoop.hive.metastore.HiveMetaStoreClient.open(HiveMetaStoreClient.java:426)
	at org.apache.hadoop.hive.metastore.HiveMetaStoreClient.<init>(HiveMetaStoreClient.java:236)
	at org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient.<init>(SessionHiveMetaStoreClient.java:74)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
	at org.apache.hadoop.hive.metastore.MetaStoreUtils.newInstance(MetaStoreUtils.java:1531)
	at org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.<init>(RetryingMetaStoreClient.java:86)
	at org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.getProxy(RetryingMetaStoreClient.java:132)
	at org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.getProxy(RetryingMetaStoreClient.java:104)
	at org.apache.hadoop.hive.ql.metadata.Hive.createMetaStoreClient(Hive.java:3000)
	at org.apache.hadoop.hive.ql.metadata.Hive.getMSC(Hive.java:3019)
	at org.apache.hadoop.hive.ql.metadata.Hive.getAllDatabases(Hive.java:1237)
	at org.apache.hadoop.hive.ql.metadata.Hive.reloadFunctions(Hive.java:174)
	at org.apache.hadoop.hive.ql.metadata.Hive.<clinit>(Hive.java:166)
	at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:484)
	at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:680)
	at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:624)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.apache.hadoop.util.RunJar.run(RunJar.java:221)
	at org.apache.hadoop.util.RunJar.main(RunJar.java:136)

during hive cli startup it tries to connect to metastore but do not have a valid TGT hence failing with the GSS exception.

WORKAROUND:

NA

RESOLUTION:

to fail it fast we can use following properties in hive configuration

hive.metastore.connect.retries- no of times Client will try to connect to Metastore by default it is set to 24. hive.metastore.client.connect.retry.delay- the delay after failure this is by default set to 5s.

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Revision #:
1 of 1
Last update:
‎12-24-2016 05:08 PM
Updated by:
 
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