GitHub user gss2002 opened a pull request:
https://github.com/apache/zeppelin/pull/1512
Zeppelin 1516 1546
### What is this PR for?
Livy Interpreter gets a NestedRuntimException when running with Kerberized
components.
ERROR [2016-10-11 22:44:47,769] (
{pool-2-thread-11} LivyHelper.java[interpretInput]:192) - Interpreter
exception
org.springframework.web.client.RestClientException: Error running rest
call; nested exception is
org.springframework.web.client.HttpClientErrorException: 404 Not Found
at
org.springframework.security.kerberos.client.KerberosRestTemplate.doExecute(KerberosRestTemplate.java:196)
at
org.springframework.web.client.RestTemplate.execute(RestTemplate.java:580)
at
org.springframework.web.client.RestTemplate.exchange(RestTemplate.java:498)
at org.apache.zeppelin.livy.LivyHelper.executeHTTP(LivyHelper.java:377)
at org.apache.zeppelin.livy.LivyHelper.executeCommand(LivyHelper.java:301)
at org.apache.zeppelin.livy.LivyHelper.interpret(LivyHelper.java:239)
at org.apache.zeppelin.livy.LivyHelper.interpretInput(LivyHelper.java:190)
at
org.apache.zeppelin.livy.LivySparkInterpreter.interpret(LivySparkInterpreter.java:79)
at
org.apache.zeppelin.interpreter.LazyOpenInterpreter.interpret(LazyOpenInterpreter.java:94)
at
org.apache.zeppelin.interpreter.remote.RemoteInterpreterServer$InterpretJob.jobRun(RemoteInterpreterServer.java:390)
at org.apache.zeppelin.scheduler.Job.run(Job.java:176)
### What type of PR is it?
[Improvement | Feature | Refactoring]
### Todos
Doc and Merge latest changes from LivyHelper into code base
### What is the Jira issue?
https://issues.apache.org/jira/browse/ZEPPELIN-1546
### How should this be tested?
Kerberize Hadoop Cluster, Kerberize Livy Server and Enable Security around
Zeppelin with multi-user and stop/start running LivyServer
### Screenshots (if appropriate)
### Questions:
* Does the licenses files need update? n
* Is there breaking changes for older versions? n
* Does this needs documentation? n
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/gss2002/zeppelin ZEPPELIN-1516_1546
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/zeppelin/pull/1512.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 #1512
----
commit 11bcd2d1db02ff2dbb2a8e560e3f09fe37057796
Author: gss2002 <g...@senia.org>
Date: 2016-10-11T04:09:23Z
ZEPPELIN-1516 Static/Singleton for userSessionMaps
commit 93c2b1488f6f3610c28a10537b18e3d394c8f9e2
Author: gss2002 <g...@senia.org>
Date: 2016-10-13T16:28:42Z
ZEPPELIN-1546 Zeppelin Livy Interpreter Session Management Recovery
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