Hi Martin, is there anything I need to check for?

On Tue, Apr 26, 2022 at 9:50 PM John Smith <java.dev....@gmail.com> wrote:

> Yeah based off the flink JDBC output format...
>
>
> On Tue, Apr 26, 2022 at 10:05 AM Martijn Visser <martijnvis...@apache.org>
> wrote:
>
>> Hi John,
>>
>> Have you built your own JDBC MSSQL source or sink or perhaps a CDC
>> driver? Because I'm not aware of a Flink Microsoft SQL Server JDBC driver.
>>
>> Best regards,
>>
>> Martijn Visser
>> https://twitter.com/MartijnVisser82
>> https://github.com/MartijnVisser
>>
>>
>> On Tue, 26 Apr 2022 at 16:01, John Smith <java.dev....@gmail.com> wrote:
>>
>>> Hi running 1.14.4
>>>
>>> Logs included:
>>> https://www.dropbox.com/s/8zjndt5rzd9o80f/flink-flink-taskexecutor-138-task-0002.log?dl=0
>>>
>>> 1- My task managers shut down with: Terminating TaskManagerRunner with
>>> exit code 1.
>>> 2- It seems to happen at the same time every day. Which leads me to
>>> believe it's our database indexing (See below for reasoning of this).
>>> 3- Most of our jobs are ETL from Kafka to SQL Server.
>>> 4- We see the following exceptions in the logs:
>>>       - Task 'Sink: jdbc (1/1)#10' did not react to cancelling signal -
>>> interrupting; it is stuck for 30 seconds in method:
>>> ... com.microsoft.sqlserver.jdbc.TDSChannel ...
>>>       - Sink: jdbc (1/1)#9 (3aaf6d8a45df6c43198bc8297b42354c) switched
>>> from RUNNING to FAILED with failure cause:
>>> org.apache.flink.util.FlinkException: Disconnect from JobManager
>>> responsible for ...
>>> 5- Also seeing this: Failed to close consumer network client with type
>>> org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient
>>> java.lang.NoClassDefFoundError:
>>> org/apache/kafka/common/network/Selector$CloseMode
>>>
>>> So what I'm guessing is happening is the indexing is blocking the job
>>> and the task manager cannot cleanly remove the job and finally after a
>>> while it decides to shut down completely?
>>>
>>> Is there a way to pause the stream and restart at a later time knowing
>>> that this happens always at the same wall clock time? Or maybe allow the
>>> JDBC to cleanly shutdown with a timeout?
>>>
>>>
>>>

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