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From Janardhan Reddy <janardhan.re...@olacabs.com>
Subject Re: flink no class found error
Date Wed, 10 Aug 2016 20:31:16 GMT
We don't use guava directly, we use another library which uses guava
internally? How do we use shade plugin in this case.

On Thu, Aug 11, 2016 at 1:37 AM, Janardhan Reddy <
janardhan.reddy@olacabs.com> wrote:

> I have cross checked that all our yarn nodes have 1.8 java installed but
> still we are getting the error : Unsupported major.minor version 52.0
>
> On Thu, Aug 11, 2016 at 1:35 AM, Janardhan Reddy <
> janardhan.reddy@olacabs.com> wrote:
>
>> can you please explain a bit more about last option. We are using yarn so
>> guava might be in some classpath.
>>
>> On Thu, Aug 11, 2016 at 1:29 AM, Robert Metzger <rmetzger@apache.org>
>> wrote:
>>
>>> Can you check if the jar you are submitting to the cluster contains a
>>> different Guava than you use at compile time?
>>>
>>> Also, it might happen that Guava is in your classpath, for example one
>>> some YARN setups.
>>>
>>> The last resort to resolve these issues is to use the maven-shade-plugin
>>> and relocated the guava version you need into your own namespace.
>>>
>>> On Wed, Aug 10, 2016 at 9:56 PM, Janardhan Reddy <
>>> janardhan.reddy@olacabs.com> wrote:
>>>
>>>> #1 is thrown from user code.
>>>>
>>>> We use hadoop 2.7 which uses gauva 11.2 but our application uses 18.0.
>>>> I think the hadoop's gauva is getting picked up instead of ours
>>>>
>>>> On Thu, Aug 11, 2016 at 1:24 AM, Robert Metzger <rmetzger@apache.org>
>>>> wrote:
>>>>
>>>>> Hi Janardhan,
>>>>>
>>>>> #1 Is the exception thrown from your user code, or from Flink?
>>>>>
>>>>> #2 is most likely caused due to a compiler / runtime version mismatch:
>>>>> http://stackoverflow.com/questions/10382929/how-to
>>>>> -fix-java-lang-unsupportedclassversionerror-unsupported-majo
>>>>> r-minor-versi
>>>>> You compiled the code with Java8, but you try to run it with an older
>>>>> JVM.
>>>>>
>>>>> On Wed, Aug 10, 2016 at 9:46 PM, Janardhan Reddy <
>>>>> janardhan.reddy@olacabs.com> wrote:
>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> We are getting the following error on submitting the flink jobs to
>>>>>> the cluster.
>>>>>>
>>>>>> 1. Caused by: java.lang.NoSuchMethodError: com.google.common.io
>>>>>> .Resources.asCharSource
>>>>>>
>>>>>> 2. This is for entirely different job
>>>>>> Caused by: java.lang.UnsupportedClassVersionError:
>>>>>> com/olacabs/fabric/common/Metadata : Unsupported major.minor version
>>>>>> 52.0
>>>>>>
>>>>>> But when we are running the flink locally, there is no error in both
>>>>>> the jobs.
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>

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