I've been struggling with the Apache Zeppelin notebook version 0.10.0 setup for a while. The idea is to be able to connect it to a remote Hortonworks 2.6.5 server that runs locally on Virtualbox in Ubuntu 20.04. I am using an image downloaded from the:
https://www.cloudera.com/downloads/hortonworks-sandbox.html
Of course, the image has pre-installed Zeppelin which works fine on port 9995, but this is an old 0.7.3 version that doesn't support Helium plugins that I would like to use. I know that HDP version 3.0.1 has updated Zeppelin version 0.8 onboard, but its use due to my hardware resource is impossible at the moment. Additionally, from what I remember, enabling Leaflet Map Plugin there was a problem either.
The first thought was to update the notebook on the server, but after updating according to the instructions on the Cloudera forums (unfortunately they are not working at the moment, and I cannot provide a link or see any other solution) it failed to start correctly. A simpler solution seemed to me now to connect the newer notebook version to the virtual server, unfortunately, despite many attempts and solutions from threads here with various configurations, I was not able to connect to Hive via JDBC. I am using Zeppelin with local Spark 3.0.3 too, but I have some geodata in Hive that I would like to visualize this way.
I used, among others, the description on the Zeppelin website:
https://zeppelin.apache.org/docs/latest/interpreter/jdbc.html#apache-hive
This is my current JDBC interpreter configuration:
hive.driver org.apache.hive.jdbc.HiveDriver
hive.url jdbc:hive2://sandbox-hdp.hortonworks.com:2181/;serviceDiscoveryMode=zooKeeper;zooKeeperNamespace=hiveserver2
hive.user hive
Artifact org.apache.hive:hive-jdbc:3.1.2
Depending on the driver version, there were different errors, but this time after typing:
%jdbc(hive)
SELECT * FROM mydb.mytable;
I get the following error:
Could not open client transport for any of the Server URI's in ZooKeeper: Could not establish connection to jdbc:hive2://sandbox-hdp.hortonworks.com:10000/;serviceDiscoveryMode=zooKeeper;zooKeeperNamespace=hiveserver2;hive.server2.proxy.user=hive;?tez.application.tags=paragraph_1645270946147_194101954;mapreduce.job.tags=paragraph_1645270946147_194101954;: Required field 'client_protocol' is unset! Struct:TOpenSessionReq(client_protocol:null, configuration:{set:hiveconf:mapreduce.job.tags=paragraph_1645270946147_194101954, set:hiveconf:hive.server2.thrift.resultset.default.fetch.size=1000, hive.server2.proxy.user=hive, use:database=default, set:hiveconf:tez.application.tags=paragraph_1645270946147_194101954})
I will be very grateful to everyone for any help. Regards.
So, after many hours and trials, here's a working solution. First of all, the most important thing is to use drivers that correlate with your version of Hadoop. Needed are jar files like 'hive-jdbc-standalone' and 'hadoop-common' in their respective versions and to avoid adding all of them in the 'Artifact' field of the %jdbc interpreter in Zeppelin it is best to use one complete file containing all required dependencies. Thanks to Tim Veil it is available in his Github repository below:
https://github.com/timveil/hive-jdbc-uber-jar/
This is my complete Zeppelin %jdbc interpreter settings:
default.url jdbc:postgresql://localhost:5432/
default.user gpadmin
default.password
default.driver org.postgresql.Driver
default.completer.ttlInSeconds 120
default.completer.schemaFilters
default.precode
default.statementPrecode
common.max_count 1000
zeppelin.jdbc.auth.type SIMPLE
zeppelin.jdbc.auth.kerberos.proxy.enable false
zeppelin.jdbc.concurrent.use true
zeppelin.jdbc.concurrent.max_connection 10
zeppelin.jdbc.keytab.location
zeppelin.jdbc.principal
zeppelin.jdbc.interpolation false
zeppelin.jdbc.maxConnLifetime -1
zeppelin.jdbc.maxRows 1000
zeppelin.jdbc.hive.timeout.threshold 60000
zeppelin.jdbc.hive.monitor.query_interval 1000
hive.driver org.apache.hive.jdbc.HiveDriver
hive.password
hive.proxy.user.property hive.server2.proxy.user
hive.splitQueries true
hive.url jdbc:hive2://sandbox-hdp.hortonworks.com:10000/default
hive.user hive
Dependencies
Artifact
/opt/zeppelin/interpreter/jdbc/hive-jdbc-uber-2.6.5.0-292.jar
Next step is to go to Ambari http://localhost:8080/ and login as admin. To do that first you must login on Hadoop root account via SSH:
ssh root@127.0.0.1 -p 2222
root@127.0.0.1's password: hadoop
After successful login, you will be prompted to change your password immediately, please do that and next set Ambari admin password with command:
[root@sandbox-hdp ~]# ambari-admin-password-reset
After that you can use admin account in Ambari (login and click Hive link in the left panel):
Ambari -> Hive -> Configs -> Advanced -> Custom hive-site
Click Add Property
Insert followings into the opening window:
hive.security.authorization.sqlstd.confwhitelist.append=tez.application.tags
And after saving, restart all Hive services in Ambari. Everything should be working now if you set the proper Java path in 'zeppelin-env.sh' and port in 'zeppelin-site.xml' (you must copy and rename 'zeppelin-env.sh.template' and 'zeppelin-site.xml.template' in Zeppelin/config directory, please remember that Ambari also use 8080 port!).
In my case, the only thing left to do is add or uncomment the fragment responsible for the Helium plug-in repository (in 'zeppelin-site.xml'):
<property>
<name>zeppelin.helium.registry</name>
<value>helium,https://s3.amazonaws.com/helium-package/helium.json</value>
<description>Enable helium packages</description>
</property>
Now you can go to the Helium tab in the top right corner of the Zeppelin sheet and install the plugins of your choice, in my case it is 'zeppelin-leaflet' visualization. And voilà! Sample vizualization from this Kaggle dataset in Hive:
https://www.kaggle.com/kartik2112/fraud-detection
Have a nice day!