Hi all! I appreciate every help, thank you! I'm using Hive HA via zookeeper, this is my hive-site.xml (HA part): <property>   <name>hive.server2.support.dynamic.service.discovery</name>   <value>true</value> </property> <property>   <name>hive.server2.zookeeper.namespace</name>   <value>hiveserver2</value> </property>   <property>   <name>hive.zookeeper.quorum</name>   <value>hadoopcluster01:2181,hadoopcluster02:2181</value> </property> <property>   <name>hive.zookeeper.client.port</name>   <value>2181</value> </property>   When I'm using beeline:  !connect jdbc:hive2://hadoopcluster01:2181,hadoopcluster02:2181/;serviceDiscoveryMode=zooKeeper;zooKeeperNamespace=hiveserver2 It's perfectly works!   When I'm using cloudera jdbc (v: 2.5.15) connect to a single hiveserver2: Class.forName("com.cloudera.hive.jdbc41.HS2Driver"); DriverManager.getConnection("jdbc:hive2://hadoopcluster01:10000", prop); It's perfectly works!   But when I try to connect to zookeeper via jdbc: Class.forName("com.cloudera.hive.jdbc41.HS2Driver"); DriverManager.getConnection("jdbc:hive2://zk=hadoopcluster01:2181,hadoopcluster02:2181/hiveserver2", prop); not work: [2015-11-11 09:35:29.426] boot - 5832  INFO [main] --- ZooKeeper: Initiating client connection, connectString=hadoopcluster01:2181 sessionTimeout=3000 watcher=com.cloudera.hive.hivecommon.api.ZookeeperDynamicDiscovery$1@74455848 [2015-11-11 09:35:29.426] boot - 5832  INFO [main-SendThread(hadoopcluster01.nebu.local:2181)] --- ClientCnxn: Opening socket connection to server hadoopcluster01.nebu.local/192.168.99.71:2181. Will not attempt to authenticate using SASL (unknown error) [2015-11-11 09:35:29.426] boot - 5832  INFO [main] --- ZooKeeper: Initiating client connection, connectString=hadoopcluster02:2181 sessionTimeout=3000 watcher=com.cloudera.hive.hivecommon.api.ZookeeperDynamicDiscovery$1@4e7912d8 [2015-11-11 09:35:29.426] boot - 5832  INFO [main-SendThread(hadoopcluster01.nebu.local:2181)] --- ClientCnxn: Socket connection established to hadoopcluster01.nebu.local/192.168.99.71:2181, initiating session [2015-11-11 09:35:29.426] boot - 5832  INFO [main-SendThread(hadoopcluster02.nebu.local:2181)] --- ClientCnxn: Opening socket connection to server hadoopcluster02.nebu.local/192.168.99.72:2181. Will not attempt to authenticate using SASL (unknown error) [2015-11-11 09:35:29.426] boot - 5832  INFO [main-SendThread(hadoopcluster02.nebu.local:2181)] --- ClientCnxn: Socket connection established to hadoopcluster02.nebu.local/192.168.99.72:2181, initiating session [2015-11-11 09:35:29.426] boot - 5832  INFO [main-SendThread(hadoopcluster01.nebu.local:2181)] --- ClientCnxn: Session establishment complete on server hadoopcluster01.nebu.local/192.168.99.71:2181, sessionid = 0x150f58353570006, negotiated timeout = 6000 [2015-11-11 09:35:29.457] boot - 5832  INFO [main-SendThread(hadoopcluster02.nebu.local:2181)] --- ClientCnxn: Session establishment complete on server hadoopcluster02.nebu.local/192.168.99.72:2181, sessionid = 0x250f582c7990001, negotiated timeout = 6000 [2015-11-11 09:35:29.457] boot - 5832  INFO [main] --- ZooKeeper: Session: 0x250f582c7990001 closed [2015-11-11 09:35:29.457] boot - 5832  INFO [main-EventThread] --- ClientCnxn: EventThread shut down java.sql.SQLException: [Cloudera][HiveJDBCDriver](500170) Error occured while setting up Zookeeper Dynamic Discovery: [Cloudera][HiveJDBCDriver]Error Occured Connecting to ZooKeeper: At: hadoopcluster01:2181 With Error Message: Path length must be > 0..     at com.cloudera.hive.hivecommon.api.ZooKeeperEnabledExtendedHS2Factory.createClient(Unknown Source)     at com.cloudera.hive.hivecommon.core.HiveJDBCCommonConnection.connect(Unknown Source)     at com.cloudera.hive.hive.core.HiveJDBCConnection.connect(Unknown Source)     at com.cloudera.hive.jdbc.common.BaseConnectionFactory.doConnect(Unknown Source)     at com.cloudera.hive.jdbc.common.AbstractDriver.connect(Unknown Source)     at java.sql.DriverManager.getConnection(DriverManager.java:664)     at java.sql.DriverManager.getConnection(DriverManager.java:208)     at com.nebu.nldpconnection.main.NLDPConnectionTest.getConnection(NLDPConnectionTest.java:81)     at com.nebu.nldpconnection.main.NLDPConnectionTest.run(NLDPConnectionTest.java:214)     at org.springframework.boot.SpringApplication.runCommandLineRunners(SpringApplication.java:677)     at org.springframework.boot.SpringApplication.afterRefresh(SpringApplication.java:695)     at org.springframework.boot.SpringApplication.run(SpringApplication.java:321)     at org.springframework.boot.SpringApplication.run(SpringApplication.java:952)     at org.springframework.boot.SpringApplication.run(SpringApplication.java:941) Caused by: com.cloudera.hive.support.exceptions.GeneralException: [Cloudera][HiveJDBCDriver](500170) Error occured while setting up Zookeeper Dynamic Discovery: [Cloudera][HiveJDBCDriver]Error Occured Connecting to ZooKeeper: At: hadoopcluster01:2181 With Error Message: Path length must be > 0..     ... 14 more ... 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