still face this error in kerberized env: java.sql.SQLException: Could not open client transport for any of the Server URI's in ZooKeeper: Unable to read HiveServer2 uri from ZooKeeper Caused by: org.apache.hive.jdbc.ZooKeeperHiveClientException: Unable to read HiveServer2 uri from ZooKeeper Caused by: org.apache.hive.jdbc.ZooKeeperHiveClientException: Tried all existing HiveServer2 uris from ZooKeeper. ... View more

4. Increasing Number of Reducers, the Proper Way Let's set hive.exec.reducers.bytes.per.reducer to 10 MB about 10432 It should be 10 KB not 10 MB. ... View more