[jira] [Work logged] (BEAM-11996) Implement SpannerIO on top of Splittable DoFn

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/BEAM-11996?focusedWorklogId=646493&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-646493 ]

ASF GitHub Bot logged work on BEAM-11996:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 03/Sep/21 22:15
            Start Date: 03/Sep/21 22:15
    Worklog Time Spent: 10m 
      Work Description: MiguelAnzoWizeline commented on pull request #14811:
URL: https://github.com/apache/beam/pull/14811#issuecomment-912839733


   Hi @lukecwik thanks for the comment.
   I have been thinking on the options you mentioned and I think that waiting for BEAM-12522 would be my preferred option over the CoGroupByKey one mainly to avoid changing the input to <Transaction, ReadOperation> as it seems to me a less natural way to approach it than obtaining the Transaction via SideInput and having to only process <ReadOperation>, but of course I could be wrong in this.
   Regarding your questions, I'm sorry but I currently don't really know how many partitions or output is generally produced when working with the Spanner IO, but if sub-partition splitting would help increase parallelism then I think the approach to take here would be to merge both DoFn into one DoFn<ReadOperation, Struct> where we take the transaction from the SideInput to create the partitions and split based on the partitions, this when BEAM-12522 is done.


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Issue Time Tracking
-------------------

    Worklog Id:     (was: 646493)
    Time Spent: 6h 50m  (was: 6h 40m)

> Implement SpannerIO on top of Splittable DoFn
> ---------------------------------------------
>
>                 Key: BEAM-11996
>                 URL: https://issues.apache.org/jira/browse/BEAM-11996
>             Project: Beam
>          Issue Type: Improvement
>          Components: io-java-gcp
>            Reporter: Boyuan Zhang
>            Assignee: Miguel Anzo
>            Priority: P2
>          Time Spent: 6h 50m
>  Remaining Estimate: 0h
>




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