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From Janardhan Reddy <janardhan.re...@olacabs.com>
Subject Re: flink no class found error
Date Wed, 10 Aug 2016 20:07:35 GMT
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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