Interesting... I confirmed that removing all of the extra classpath entries
added by EMR in zeppelin-env.sh does not fix this issue. This must mean
that the issue is caused by the custom EMR builds of either Spark or
Hadoop, which we use when building Zeppelin.

On Wed, Jan 13, 2016 at 2:15 PM Jonathan Kelly <jonathaka...@gmail.com>
wrote:

> Ah, never mind. I had incorrectly been excluding the jars in
> /usr/lib/zeppelin/interpreter, and I just noticed that jersey-core-1.9.jar
> appears in two places underneath that directory (in the hive and phoenix
> interpreter libs), and those jars are included in the Zeppelin server
> classpath. This older version of jersey-core conflicts with
> jersey-core-1.13.jar from /usr/lib/zeppelin/lib, so this probably doesn't
> help. However, removing just these two jars did not help by itself.
>
> Haven't tried removing classpath entries from zeppelin-env.sh yet though.
>
> On Wed, Jan 13, 2016 at 2:07 PM Jonathan Kelly <jonathaka...@gmail.com>
> wrote:
>
>> Yeah, I'm sure you're right that it must be due to something that EMR is
>> putting in the classpath, but the thing is that I didn't see anything else
>> in the classpath that includes the javax.ws.rs.core.Response class.
>>
>> And yes, I agree that trying to remove these two jars from the Zeppelin
>> classpath was a futile attempt and would only have helped if somehow these
>> jars were near duplicates of each other but different versions of the same
>> thing. Besides, if removing one of the jars had helped, it would have shown
>> that this was probably not a problem with EMR specifically but with
>> Zeppelin itself, which of course would have been doubtful.
>>
>> Anyway, I'll try removing the EMR-supplied extra classpath entries from
>> zeppelin-env.sh.
>>
>> On Wed, Jan 13, 2016 at 1:48 PM Ophir Cohen <oph...@gmail.com> wrote:
>>
>>> Interesting
>>>
>>> I'm using emr 4.1.0,  I'll try 4.2.0 tomorrow.
>>>
>>> If I need to guess, I don't think that the mis-version dependency comes
>>> from the zeppelin jars as Zeppelin api works when not in emr.
>>> It most likely that it comes from the emr classpath.
>>> I would have removed all the additional paths (set in zeppelin-env.sh)
>>> and check again.
>>>
>>> BTW
>>> Removing the one of the jars from Zeppelin as you did won't work as
>>> Zeppelin needs these jars.
>>> If you really want to test it you need to build zeppelin and instructe
>>> maven to exclude the problematic dependency  fron one of these jars.
>>> In other words, maven should bring the jar, but without the duplicate
>>> dependency.
>>> Having said that, and as I stated above, I think that the problematic
>>> dependency comes from the additional classpath and not from Zeppelin core
>>> jars.
>>> On Jan 13, 2016 11:08 PM, "Jonathan Kelly" <jonathaka...@gmail.com>
>>> wrote:
>>>
>>>> Hi, Ophir, (Jonathan from EMR here)
>>>>
>>>> Are you using emr-4.1.0 or emr-4.2.0? I just tried this with emr-4.2.0
>>>> and found that http://<my-server>:8890/api/notebook works for me, but
>>>> http://<my-server>:8890/api/notebook/2A94M5J1Z fails. For some reason
>>>> it doesn't quite fail with the same exception that you're seeing, but it
>>>> definitely seems like a similar cause anyway. Here's the exception I get:
>>>>
>>>> WARN [2016-01-13 20:34:52,279] ({qtp508683864-37}
>>>> ServletHandler.java[doHandle]:590) - Error for /api/notebook/2A94M5J1Z
>>>> java.lang.AbstractMethodError:
>>>> javax.ws.rs.core.Response.getStatusInfo()Ljavax/ws/rs/core/Response$StatusType;
>>>> at
>>>> javax.ws.rs.WebApplicationException.validate(WebApplicationException.java:186)
>>>> at javax.ws.rs.ClientErrorException.<init>(ClientErrorException.java:88)
>>>> at
>>>> org.apache.cxf.jaxrs.utils.JAXRSUtils.findTargetMethod(JAXRSUtils.java:503)
>>>> at
>>>> org.apache.cxf.jaxrs.interceptor.JAXRSInInterceptor.processRequest(JAXRSInInterceptor.java:207)
>>>>
>>>> I found that the Zeppelin classpath includes two different jars that
>>>> contain the javax/ws/rs/core/Response class: 
>>>> /usr/lib/zeppelin/lib/javax.ws.rs-api-2.0-m10.jar
>>>> and /usr/lib/zeppelin/lib/jersey-core-1.13.jar
>>>>
>>>> What's weird though is that if I remove either of these from the
>>>> classpath, the Zeppelin server fails to start up for different reasons. If
>>>> I remove /usr/lib/zeppelin/lib/jersey-core-1.13.jar, I get a
>>>> ClassNotFoundException for com.sun.jersey.core.util.FeaturesAndProperties,
>>>> and if I remove /usr/lib/zeppelin/lib/javax.ws.rs-api-2.0-m10.jar, I
>>>> get a ClassNotFoundException for javax.ws.rs.NotFoundException.
>>>>
>>>> According to a `mvn ... dependency:tree` in the zeppelin-server
>>>> submodule, /usr/lib/zeppelin/lib/jersey-core-1.13.jar comes indirectly from
>>>> zeppelin-server's direct dependency
>>>> on com.sun.jersey:jersey-servlet:jar:1.13:compile, and 
>>>> /usr/lib/zeppelin/lib/javax.ws.rs-api-2.0-m10.jar
>>>> comes from zeppelin-server's direct dependency on 
>>>> javax.ws.rs:javax.ws.rs-api:jar:2.0-m10:compile.
>>>> Both of these dependencies seem to have been added a long time ago, and
>>>> both seem to be used by the websocket API rather than the REST API (at
>>>> least based upon the Git commit descriptions where they were added), so
>>>> this confuses me even more.
>>>>
>>>> Does anybody from the Zeppelin side have any idea what is going on here?
>>>>
>>>> Thanks,
>>>> Jonathan
>>>>
>>>> On Wed, Jan 13, 2016 at 5:34 AM Ophir Cohen <oph...@gmail.com> wrote:
>>>>
>>>>> Hi All,
>>>>> We migrated our Zeppelin to use EMR Zeppelin. It's straight forward
>>>>> and we were happy with the migration till we found out that something 
>>>>> isn't
>>>>> working well with the rest API.
>>>>>
>>>>> Calling to the interpreter API:
>>>>> http://<my-server>:8890/api/interpreter
>>>>> and this:
>>>>> http://<my-server>:8890/api/interpreter/setting
>>>>> Returns results as expected.
>>>>>
>>>>> When trying to access the notebooks:
>>>>> http://<my-server>:8890/api/notebook
>>>>> Or a specific notebook:
>>>>> http://<my-server>:8890/api/notebook/2A94M5J1Z
>>>>> It fails with HTTP 500 error.
>>>>>
>>>>> The error I can see in the logs is NoSuchMethodError (see below) which
>>>>> suggests we might have here 'jar-hell' and the wrong (probably old) jar
>>>>> loaded instead of the need one - but I can't figure that out.
>>>>> Thanks!
>>>>>
>>>>> The exception:
>>>>> WARN [2016-01-13 07:47:11,690] ({qtp716961517-38}
>>>>> ServletHandler.java[doHandle]:590) - Error for /api/notebook/2A94M5J1Z
>>>>> java.lang.NoSuchMethodError:
>>>>> javax.ws.rs.ClientErrorException.validate(Ljavax/ws/rs/core/Response;Ljavax/ws/rs/core/Response$Status$Family;)Ljavax/ws/rs/core/Response;
>>>>>         at
>>>>> javax.ws.rs.ClientErrorException.<init>(ClientErrorException.java:88)
>>>>>         at
>>>>> org.apache.cxf.jaxrs.utils.JAXRSUtils.findTargetMethod(JAXRSUtils.java:503)
>>>>>         at
>>>>> org.apache.cxf.jaxrs.interceptor.JAXRSInInterceptor.processRequest(JAXRSInInterceptor.java:207)
>>>>>
>>>>

Reply via email to