Oh yes! I now remember that Hop uses Beam to run on Flink. Anyhow, the basic checkpoint options are there. Very true, that we might have to add any new ones. Maybe a chance for Hans-Peter to contribute? :)

Cheers,
Max

On 27.01.22 11:55, Matt Casters wrote:
You are correct.  Hop uses the Flink runner of Apache Beam though and we did upgrade to the Flink version 1.13 runner in our latest Hop version so there's always the chance that new options became available in Flink which are not yet reflected in the runner or in Hop. There's really no good communications channel that I know of to signal downstream projects of available changes so we just keep an eye out for them.

Cheers,
Matt

Op do 27 jan. 2022 11:49 schreef Maximilian Michels <[email protected] <mailto:[email protected]>>:

    It looks to me, Hans-Peter's question was not about Beam but Flink. The
    provided link should answer his question regarding setting the
    checkpoint interval.

    -Max

    On 27.01.22 11:21, Matt Casters wrote:
     > It can happen that we lag a bit behind when Apache Beam adds
    options for
     > specific runners.
     > So always let us know if there's an option that's not available.
     > In fact, if the option is not available in Beam either we can
    create a
     > change against Apache Beam itself.
     > Cheers,
     > Matt
     >
     > On Thu, Jan 27, 2022 at 10:50 AM Maximilian Michels
    <[email protected] <mailto:[email protected]>
     > <mailto:[email protected] <mailto:[email protected]>>> wrote:
     >
     >     Hi Hans-Peter,
     >
     >     Checkpoints are internal to Flink. Hop does not have any
    business with
     >     it, other than configuring the checkpoint options. Those can
    also be
     >     configured via the Flink config file.
     >
     >     I see that Hop has checkpointing options listed here:
     >
    
https://hop.apache.org/manual/latest/pipeline/pipeline-run-configurations/beam-flink-pipeline-engine.html#_options
    
<https://hop.apache.org/manual/latest/pipeline/pipeline-run-configurations/beam-flink-pipeline-engine.html#_options>
>  <https://hop.apache.org/manual/latest/pipeline/pipeline-run-configurations/beam-flink-pipeline-engine.html#_options <https://hop.apache.org/manual/latest/pipeline/pipeline-run-configurations/beam-flink-pipeline-engine.html#_options>>
     >
     >     Cheers,
     >     -Max
     >
     >     On 23.01.22 19:03, HG wrote:
     >      > Hi,
     >      >
     >      > Perhaps a dumb question.
     >      > How is checkpointing implemented when the final framework
    is Flink?
     >      > With Flink checkpoint barriers are inserted.
     >      > Can such an interval also be configured with HOP?
     >      >
     >      > Regards Hans-Peter
     >
     >
     >
     >
     >

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