Hi Robert,
After reading that link I've added the missing log4j-over-slf4j.
Now Flink is able to start, but I get another exception when uploading a
job:
NoClassDefFoundError: org/slf4j/event/LoggingEvent
...
at
org.apache.flink.api.scala.ClosureCleaner$.ensureSerializable(ClosureCleaner.scala:170)
at
org.apache.flink.api.scala.ClosureCleaner$.clean(ClosureCleaner.scala:164)
Best regards,
Dmitry
On Tue, Feb 7, 2017 at 4:23 PM, Robert Metzger <rmetz...@apache.org> wrote:
> Hi Dmitry,
> Did you also check out this documentation page? https://ci.apache.org/
> projects/flink/flink-docs-release-1.2/monitoring/best_
> practices.html#use-logback-when-running-flink-on-a-cluster
>
> On Tue, Feb 7, 2017 at 1:07 PM, Dmitry Golubets <dgolub...@gmail.com>
> wrote:
>
>> Hi,
>>
>> documentation says: "Users willing to use logback instead of log4j can
>> just exclude log4j (or delete it from the lib/ folder)."
>>
>> But then Flink just doesn't start. I added logback-classic 1.10 to it's
>> lib folder, but still get NoClassDefFoundError:
>> ch/qos/logback/core/joran/spi/JoranException
>>
>> Something else I should do? Or should I use an older logback version?
>>
>> Best regards,
>> Dmitry
>>
>
>
