We added a new sink to the job graph and redeployed - but the new sink did
not receive any records, as though it were not connected to the graph
(possible it was a code bug, but I was trying to understand if this make
sense given the implementation)

re-including mailing list, excluded by accident

Padarn

On Wed, Jun 16, 2021 at 10:59 AM Yun Gao <yungao...@aliyun.com> wrote:

> Hi Padarn,
>
> Sorry I might not fully got the mean of new topology was ignored.
> Do you mean the topology is not the same as expected ?
>
> Best,
> Yun
>
>
> ------------------Original Mail ------------------
> *Sender:*Padarn Wilson <pad...@gmail.com>
> *Send Date:*Tue Jun 15 21:45:17 2021
> *Recipients:*Yun Gao <yungao...@aliyun.com>
> *Subject:*Re: Upgrade job topology in checkpoint
>
>> Thanks Yun,
>>
>> Yes we do indeed retain checkpoints, but we were unable to restore with
>> new topology from them for some reason. It seemed like the new topology was
>> ignored totally which was surprising to me.
>>
>> Padarn
>>
>> On Tue, Jun 15, 2021 at 7:35 PM Yun Gao <yungao...@aliyun.com> wrote:
>>
>>> Hi Padarn,
>>>
>>> By default the checkpoint would be disposed when the job finished or
>>> failed,
>>> they would be retained only when explicitly required [1].
>>>
>>> From the implementation perspective I think users could be able to
>>> change topology when restored
>>> from external checkpoint, but I think Flink would not guarantee this
>>> functionality.
>>>
>>> Best,
>>> Yun
>>>
>>>
>>> [1]
>>> https://ci.apache.org/projects/flink/flink-docs-master/docs/ops/state/checkpoints/#retained-checkpoints
>>>
>>> ------------------Original Mail ------------------
>>> *Sender:*Padarn Wilson <pad...@gmail.com>
>>> *Send Date:*Sat Jun 12 12:19:56 2021
>>> *Recipients:*user <user@flink.apache.org>
>>> *Subject:*Upgrade job topology in checkpoint
>>>
>>>> Hi all,
>>>>
>>>> I'm looking for some clarity about changing job topology as described
>>>> here:
>>>> https://ci.apache.org/projects/flink/flink-docs-release-1.13/docs/ops/upgrading/#application-topology
>>>>
>>>> My question is simple: Does this only apply to savepoints? Or can it
>>>> also work for checkpoints? (also why if not)
>>>>
>>>> Cheers,
>>>> Padarn
>>>>
>>>

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