GitHub user prabhjyotsingh opened a pull request:
https://github.com/apache/zeppelin/pull/2471
[ZEPPELIN-2744] [minor] Increase error handling in JDBC interpreter
### What is this PR for?
At times running a phoenix sql query throws "ResultSet is closed."
```
java.sql.SQLException: ERROR 1101 (XCL01): ResultSet is closed.
at
org.apache.phoenix.exception.SQLExceptionCode$Factory$1.newException(SQLExceptionCode.java:442)
at
org.apache.phoenix.exception.SQLExceptionInfo.buildException(SQLExceptionInfo.java:145)
at
org.apache.phoenix.jdbc.PhoenixResultSet.checkOpen(PhoenixResultSet.java:215)
at org.apache.phoenix.jdbc.PhoenixResultSet.next(PhoenixResultSet.java:772)
at
org.apache.commons.dbcp2.DelegatingResultSet.next(DelegatingResultSet.java:191)
at
org.apache.commons.dbcp2.DelegatingResultSet.next(DelegatingResultSet.java:191)
at
org.apache.zeppelin.jdbc.JDBCInterpreter.executeSql(JDBCInterpreter.java:705)
at
org.apache.zeppelin.jdbc.JDBCInterpreter.interpret(JDBCInterpreter.java:775)
at
org.apache.zeppelin.interpreter.LazyOpenInterpreter.interpret(LazyOpenInterpreter.java:101)
at
org.apache.zeppelin.interpreter.remote.RemoteInterpreterServer$InterpretJob.jobRun(RemoteInterpreterServer.java:503)
at org.apache.zeppelin.scheduler.Job.run(Job.java:181)
at
org.apache.zeppelin.scheduler.ParallelScheduler$JobRunner.run(ParallelScheduler.java:162)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
``
### What type of PR is it?
[Improvement]
### What is the Jira issue?
* [ZEPPELIN-2744](https://issues.apache.org/jira/browse/ZEPPELIN-2744)
### How should this be tested?
Try running a Phoenix query like `select * from SYSTEM.CATALOG` for me it
was failing on a Kerberos enabled environment (on CentOS6.6 with Hbase-1.1.2).
### Questions:
* Does the licenses files need update? N/A
* Is there breaking changes for older versions? N/A
* Does this needs documentation? N/A
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/prabhjyotsingh/zeppelin ZEPPELIN-2744
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/zeppelin/pull/2471.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #2471
----
commit 34813ae0835d5e1007374fee8cf6604273ad6c44
Author: Prabhjyot Singh <prabhjyotsi...@gmail.com>
Date: 2017-07-07T06:22:00Z
Increase error handling in JDBC interpreter
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