[ 
https://issues.apache.org/jira/browse/HIVE-26295?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17554987#comment-17554987
 ] 

hansonhe commented on HIVE-26295:
---------------------------------

@ [~dengzh] 
The following is the details with  adding _--verbose_ at the end of beeline 
command
22/06/16 17:25:23 INFO ZooKeeper: Session: 0x100c261eafc0081 closed
22/06/16 17:25:23 INFO ClientCnxn: EventThread shut down for session: 
0x100c261eafc0081
Error: org.apache.hive.jdbc.ZooKeeperHiveClientException: Unable to read 
HiveServer2 configs from ZooKeeper (state=,code=0)
java.sql.SQLException: org.apache.hive.jdbc.ZooKeeperHiveClientException: 
Unable to read HiveServer2 configs from ZooKeeper
        at org.apache.hive.jdbc.HiveConnection.<init>(HiveConnection.java:170)
        at org.apache.hive.jdbc.HiveDriver.connect(HiveDriver.java:107)
        at java.sql.DriverManager.getConnection(DriverManager.java:664)
        at java.sql.DriverManager.getConnection(DriverManager.java:208)
        at 
org.apache.hive.beeline.DatabaseConnection.connect(DatabaseConnection.java:145)
        at 
org.apache.hive.beeline.DatabaseConnection.getConnection(DatabaseConnection.java:209)
        at org.apache.hive.beeline.Commands.connect(Commands.java:1641)
        at org.apache.hive.beeline.Commands.connect(Commands.java:1536)
        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:498)
        at 
org.apache.hive.beeline.ReflectiveCommandHandler.execute(ReflectiveCommandHandler.java:56)
        at 
org.apache.hive.beeline.BeeLine.execCommandWithPrefix(BeeLine.java:1384)
        at org.apache.hive.beeline.BeeLine.dispatch(BeeLine.java:1423)
        at org.apache.hive.beeline.BeeLine.connectUsingArgs(BeeLine.java:900)
        at org.apache.hive.beeline.BeeLine.initArgs(BeeLine.java:795)
        at org.apache.hive.beeline.BeeLine.begin(BeeLine.java:1048)
        at 
org.apache.hive.beeline.BeeLine.mainWithInputRedirection(BeeLine.java:538)
        at org.apache.hive.beeline.BeeLine.main(BeeLine.java:520)
        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:498)
        at org.apache.hadoop.util.RunJar.run(RunJar.java:318)
        at org.apache.hadoop.util.RunJar.main(RunJar.java:232)
Caused by: org.apache.hive.jdbc.ZooKeeperHiveClientException: Unable to read 
HiveServer2 configs from ZooKeeper
        at 
org.apache.hive.jdbc.ZooKeeperHiveClientHelper.configureConnParams(ZooKeeperHiveClientHelper.java:147)
        at 
org.apache.hive.jdbc.Utils.configureConnParamsFromZooKeeper(Utils.java:511)
        at org.apache.hive.jdbc.Utils.parseURL(Utils.java:334)
        at org.apache.hive.jdbc.HiveConnection.<init>(HiveConnection.java:168)
        ... 25 more
Caused by: org.apache.hive.jdbc.ZooKeeperHiveClientException: Unable to read 
HiveServer2 uri from ZooKeeper: 
        at 
org.apache.hive.jdbc.ZooKeeperHiveClientHelper.updateParamsWithZKServerNode(ZooKeeperHiveClientHelper.java:125)
        at 
org.apache.hive.jdbc.ZooKeeperHiveClientHelper.configureConnParams(ZooKeeperHiveClientHelper.java:145)
        ... 28 more
Beeline version 3.1.2 by Apache Hive

> Hive LB based on zookeeper occured some probability of connect failed
> ---------------------------------------------------------------------
>
>                 Key: HIVE-26295
>                 URL: https://issues.apache.org/jira/browse/HIVE-26295
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 3.1.2
>            Reporter: hansonhe
>            Priority: Major
>
> (1) I set LB properties  in hive-site.xml
> hive.server2.support.dynamic.service.discovery=true
> hive.server2.active.passive.ha.enable=false
>  (2) My hive production cluster info 
> hive  version: Apache 3.1.2
> hadoop version: Apache 3.1.4
> zookeeper version: Apache 3.5.9
> URL:  
> jdbc:hive2://host1:2181,host2:2181,host3:2181/;serviceDiscoveryMode=zooKeeper;zooKeeperNamespace=hiveserver2
> my hive cluster have 3 hiveserver2 :  host1:10000,host2:10000,host3:10000
> (3)After lots of test connect to use beeline -u '${URL}'  -n 'hive' -p 'xxxx' 
>  , some probability of connect failured or connect success.When connect 
> success,it can connect anyone of 3 hiveserver2 randomly and successfully. 
> When connect failed,failed logs  as following :
> 22/06/07 11:14:59 INFO X509Util: Setting -D 
> jdk.tls.rejectClientInitiatedRenegotiation=true to disable client-initiated 
> TLS renegotiation
> 22/06/07 11:14:59 INFO ClientCnxnSocket: jute.maxbuffer value is 4194304 Bytes
> 22/06/07 11:14:59 INFO ClientCnxn: zookeeper.request.timeout value is 0. 
> feature enabled=
> 22/06/07 11:14:59 INFO ClientCnxn: Opening socket connection to server 
> host3/10.2.52.73:2181. Will not attempt to authenticate using SASL (unknown 
> error)
> 22/06/07 11:14:59 INFO ClientCnxn: Socket connection established, initiating 
> session, client: /10.2.52.110:61210, server: 
> sh1-bigdata-master03/10.2.52.73:2181
> 22/06/07 11:14:59 INFO ClientCnxn: Session establishment complete on server 
> host3/10.2.52.73:2181, sessionid = 0x301b42644c8001c, negotiated timeout = 
> 60000
> 22/06/07 11:14:59 INFO ConnectionStateManager: State change: CONNECTED
> 22/06/07 11:14:59 INFO CuratorFrameworkImpl: backgroundOperationsLoop exiting
> 22/06/07 11:14:59 INFO ZooKeeper: Session: 0x301b42644c8001c closed
> 22/06/07 11:14:59 INFO ClientCnxn: EventThread shut down for session: 
> 0x301b42644c8001c
> Error: org.apache.hive.jdbc.ZooKeeperHiveClientException: Unable to read 
> HiveServer2 configs from ZooKeeper (state=,code=0)
> Beeline version 3.1.2 by Apache Hive



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