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Solomon Duskis commented on BEAM-2955:
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Chamikra: HBaseIO will have to be extended or wrapped. Cloud Bigtable needs
slightly different configuration options, has a different way to calculate
estimated sizes, and needs templating. The interface would essentially be the
same whether we leverage HBaseIO or BigtableIO. The BigtableIO wrapper that I
wrote was 271 lines of code.
I'll create a PR for the BigtableIO wrapper in the Beam github project, since
the code is already written.
I'll also create a PR for an extension of HBaseIO.
That way, we can compare the two options.
> Create a Cloud Bigtable HBase connector
> ---------------------------------------
>
> Key: BEAM-2955
> URL: https://issues.apache.org/jira/browse/BEAM-2955
> Project: Beam
> Issue Type: New Feature
> Components: sdk-java-gcp
> Reporter: Solomon Duskis
> Assignee: Solomon Duskis
>
> The Cloud Bigtable (CBT) team has had a Dataflow connector maintained in a
> different repo for awhile. Recently, we did some reworking of the Cloud
> Bigtable client that would allow it to better coexist in the Beam ecosystem,
> and we also released a Beam connector in our repository that exposes HBase
> idioms rather than the Protobuf idioms of BigtableIO. More information about
> the customer experience of the HBase connector can be found here:
> [https://cloud.google.com/bigtable/docs/dataflow-hbase].
> The Beam repo is a much better place to house a Cloud Bigtable HBase
> connector. There are a couple of ways we can implement this new connector:
> # The CBT connector depends on artifacts in the io/hbase maven project. We
> can create a new extend HBaseIO for the purposes of CBT. We would have to
> add some features to HBaseIO to make that work (dynamic rebalancing, and a
> way for HBase and CBT's size estimation models to coexist)
> # The BigtableIO connector works well, and we can add an adapter layer on top
> of it. I have a proof of concept of it here:
> [https://github.com/sduskis/cloud-bigtable-client/tree/add_beam/bigtable-dataflow-parent/bigtable-hbase-beam].
> # We can build a separate CBT HBase connector.
> I'm happy to do the work. I would appreciate some guidance and discussion
> about the right approach.
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