FAILED: Error in metadata: java.lang.RuntimeException: Unable to instantiate org.apache.hadoop.hive.metastore.HiveMetaStoreClient

Question

I shutdown my HDFS client while HDFS and hive instances were running. Now when I relogged into Hive, I can\'t execute any of my DDL Tasks e.g. \"show tables\" or \"describe

Answer 1

I faced the same issue and resolved it by starting the metastore service. Sometimes service might get stopped if your machine is re-booted or went down. You could start the service by running the command:

Login as $HIVE_USER

nohup hive --service metastore>$HIVE_LOG_DIR/hive.out 2>$HIVE_LOG_DIR/hive.log &