Jeff, both of the issues reported above are fixed by your PRs
https://github.com/apache/zeppelin/pull/2810
and https://github.com/apache/zeppelin/pull/2802

Thanks a lot for such a quick turnaround !

Best regards,
Ruslan Dautkhanov

On Tue, Feb 20, 2018 at 5:45 AM, Jeff Zhang <zjf...@gmail.com> wrote:

>
> Hi Ruslan,
>
> Thanks for reporting this issue, This PR should fix this issue.
>
> https://github.com/apache/zeppelin/pull/2810
>
>
>
> Ruslan Dautkhanov <dautkha...@gmail.com>于2018年2月20日周二 上午7:38写道:
>
>> New IPython backend for Spark interpreter breaks Python 2 compatibility
>> because of grpc.
>>
>> Basically if you have an unicode character in a static string or even in
>> a comment, it'll break Spark interpreter.
>>
>> https://issues.apache.org/jira/browse/ZEPPELIN-3239
>>
>> Below update on gRPC issue https://github.com/grpc/grpc/issues/14446
>> says that in Python 2
>> we should directly encode data explicitly before sending it over to grpc.
>>
>>
>> PS.
>> If unicode data is present, in frontend it just looks as paragraph is in
>> "RUNNING" state with no ability
>> to cancel it. The only way to "unhang" spark interpreter is to restart
>> it.
>>
>> It seems spark interpreter --> grpc --> ipython backend is currently
>> somewhat brittle as any exception
>> stops grpc stream [1].
>> Would it be possible to adjust code in ipython logic to restart grpc
>> stream for each paragraph run?
>> Like explained in https://github.com/grpc/grpc-java/issues/4086
>>
>> Filed https://issues.apache.org/jira/browse/ZEPPELIN-3247 to consider
>> implementing this.
>>
>>
>>
>>
>> [1]
>>
>> INFO [2018-02-14 10:39:10,923] ({grpc-default-worker-ELG-1-2}
>> AbstractClientStream2.java[inboundDataReceived]:249) - Received data on
>> closed stream
>> INFO [2018-02-14 10:39:10,924] ({grpc-default-worker-ELG-1-2}
>> AbstractClientStream2.java[inboundDataReceived]:249) - Received data on
>> closed stream
>> INFO [2018-02-14 10:39:10,925] ({grpc-default-worker-ELG-1-2}
>> AbstractClientStream2.java[inboundDataReceived]:249) - Received data on
>> closed stream
>>
>>
>>
>>
>>
>>
>>
>> ---------- Forwarded message ----------
>> From: kpayson64 <notificati...@github.com>
>> Date: Mon, Feb 19, 2018 at 2:47 PM
>> Subject: Re: [grpc/grpc] Unicode support in Python 2? (#14446)
>> To: grpc/grpc <g...@noreply.github.com>
>> Cc: Ruslan Dautkhanov <dautkha...@gmail.com>, Author <
>> aut...@noreply.github.com>
>>
>>
>> I can confirm that Python 2 gRPC doesn't accept unicode characters. The
>> Python gRPC API accepts the string type, which in Python 2 is equivalent
>> to the byte type. Applications should do any encoding if they are using
>> unicode characters.
>>
>> —
>> You are receiving this because you authored the thread.
>> Reply to this email directly, view it on GitHub
>> <https://github.com/grpc/grpc/issues/14446#issuecomment-366810413>, or mute
>> the thread
>> <https://github.com/notifications/unsubscribe-auth/AC37KkH9LbYbClw5ZZ-T48i4GX54m15Rks5tWev7gaJpZM4SH7mi>
>> .
>>
>>

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