DennisLi
DennisLi

Reputation: 4154

CDH Hive raise: Unable to instantiate org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient

I installed CDH 6.2 on two servers, device1 is the master. There was no any errors in CM web UI, however, when I run hive command-line: show databaes; in device1, there was an Exception as below:

dennis@device1:~$ hive
/opt/cloudera/parcels/CDH-6.2.0-1.cdh6.2.0.p0.967373/bin/../lib/hive/conf/hive-env.sh: line 24: /opt/cloudera/parcels/CDH-6.2.0-1.cdh6.2.0.p0.967373/lib/hbase/hbase-hadoop2-compat.jar: Permission denied
/opt/cloudera/parcels/CDH-6.2.0-1.cdh6.2.0.p0.967373/bin/../lib/hive/conf/hive-env.sh: line 25: /opt/cloudera/parcels/CDH-6.2.0-1.cdh6.2.0.p0.967373/lib/hbase/lib/htrace-core.jar: Permission denied
/opt/cloudera/parcels/CDH-6.2.0-1.cdh6.2.0.p0.967373/bin/../lib/hive/conf/hive-env.sh: line 26: /opt/cloudera/parcels/CDH-6.2.0-1.cdh6.2.0.p0.967373/lib/hbase/hbase-common.jar: Permission denied
/opt/cloudera/parcels/CDH-6.2.0-1.cdh6.2.0.p0.967373/bin/../lib/hive/conf/hive-env.sh: line 27: /opt/cloudera/parcels/CDH-6.2.0-1.cdh6.2.0.p0.967373/lib/hbase/hbase-server.jar: Permission denied
/opt/cloudera/parcels/CDH-6.2.0-1.cdh6.2.0.p0.967373/bin/../lib/hive/conf/hive-env.sh: line 28: /opt/cloudera/parcels/CDH-6.2.0-1.cdh6.2.0.p0.967373/lib/hbase/hbase-hadoop-compat.jar: Permission denied
/opt/cloudera/parcels/CDH-6.2.0-1.cdh6.2.0.p0.967373/bin/../lib/hive/conf/hive-env.sh: line 29: /opt/cloudera/parcels/CDH-6.2.0-1.cdh6.2.0.p0.967373/lib/hbase/hbase-protocol.jar: Permission denied
/opt/cloudera/parcels/CDH-6.2.0-1.cdh6.2.0.p0.967373/bin/../lib/hadoop/libexec/hadoop-functions.sh: line 2331: HADOOP_ORG.APACHE.HADOOP.HBASE.UTIL.GETJAVAPROPERTY_USER: bad substitution
/opt/cloudera/parcels/CDH-6.2.0-1.cdh6.2.0.p0.967373/bin/../lib/hadoop/libexec/hadoop-functions.sh: line 2426: HADOOP_ORG.APACHE.HADOOP.HBASE.UTIL.GETJAVAPROPERTY_OPTS: bad substitution
WARNING: Use "yarn jar" to launch YARN applications.
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/opt/cloudera/parcels/CDH-6.2.0-1.cdh6.2.0.p0.967373/jars/log4j-slf4j-impl-2.8.2.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/opt/cloudera/parcels/CDH-6.2.0-1.cdh6.2.0.p0.967373/jars/slf4j-log4j12-1.7.25.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.apache.logging.slf4j.Log4jLoggerFactory]

Logging initialized using configuration in jar:file:/opt/cloudera/parcels/CDH-6.2.0-1.cdh6.2.0.p0.967373/jars/hive-common-2.1.1-cdh6.2.0.jar!/hive-log4j2.properties Async: false

WARNING: Hive CLI is deprecated and migration to Beeline is recommended.
hive> show databases;
FAILED: SemanticException org.apache.hadoop.hive.ql.metadata.HiveException: java.lang.RuntimeException: Unable to instantiate org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient
hive> 

However, there is no any Exception on the device2 when I run hive command-line. Besides, it is also normal on Hue

Upvotes: 2

Views: 735

Answers (1)

Secespitus
Secespitus

Reputation: 709

You probably don't have a Gateway for the Hive service on your device1, only on your device2, which probably also has the Hive MetaStore. See also How Hive Configurations are Propagated to Hive Clients (emphasis mine):

Because the Hive service does not have worker roles, another mechanism is needed to enable the propagation of client configurations to the other hosts in your cluster. In Cloudera Manager gateway roles fulfill this function. Whether you add a Hive service at installation time or at a later time, ensure that you assign the gateway roles to hosts in the cluster. If you do not have gateway roles, client configurations are not deployed.

Your device1 doesn't have the client configuration and therefore can't establish a connection with the Hive MetaStore.

You should also check the error messages you get at the start of your copied output (emphasis mine):

/opt/cloudera/parcels/CDH-6.2.0-1.cdh6.2.0.p0.967373/bin/../lib/hive/conf/hive-env.sh: line 24: /opt/cloudera/parcels/CDH-6.2.0-1.cdh6.2.0.p0.967373/lib/hbase/hbase-hadoop2-compat.jar: Permission denied

There may be permission problems with the hive user not being able to access certain directories.

And a last point is that you should switch to beeline. As the following message from your output shows the Hive CLI is not recommended:

WARNING: Hive CLI is deprecated and migration to Beeline is recommended.

See also Migrating from Hive CLI to Beeline: A Primer, a guide from Cloudera fom 2014:

Recently, the Hive community (with Cloudera engineers leading the charge) introduced HiveServer2, an enhanced Hive server designed for multi-client concurrency and improved authentication that also provides better support for clients connecting through JDBC and ODBC. Now HiveServer2, with Beeline as the command-line interface, is the recommended solution; HiveServer1 and Hive CLI are deprecated and the latter won’t even work with HiveServer2.

Upvotes: 1

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