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https://issues.apache.org/jira/browse/BEAM-11996?focusedWorklogId=610782&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-610782
]
ASF GitHub Bot logged work on BEAM-11996:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 14/Jun/21 17:26
Start Date: 14/Jun/21 17:26
Worklog Time Spent: 10m
Work Description: MiguelAnzoWizeline commented on a change in pull
request #14811:
URL: https://github.com/apache/beam/pull/14811#discussion_r651139190
##########
File path:
sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/spanner/BatchSpannerRead.java
##########
@@ -73,18 +74,16 @@ public static BatchSpannerRead create(
.apply(
"Generate Partitions",
ParDo.of(new GeneratePartitionsFn(getSpannerConfig(),
txView)).withSideInputs(txView))
- .apply("Shuffle partitions", Reshuffle.<Partition>viaRandomKey())
.apply(
"Read from Partitions",
ParDo.of(new ReadFromPartitionFn(getSpannerConfig(),
txView)).withSideInputs(txView));
}
@VisibleForTesting
- static class GeneratePartitionsFn extends DoFn<ReadOperation, Partition> {
+ static class GeneratePartitionsFn extends DoFn<ReadOperation,
List<Partition>> {
Review comment:
Hello @boyuanzz I have been working in trying to get this part done but
I have encountered a problem with the approach. I have changed the code to a
single DoFn to remove `GeneratePartitionsFn` as you mentioned, now my DoFn
looks like this `private static class ReadFromPartitionFn extends
DoFn<ReadOperation, Struct>`. But I'm having problems getting
`@GetInitialRestriction `and `@SplitRestriction` right, in order to know the
size of the Partition List we are going to process I need to use the side input
`c.sideInput(txView);` to process the ReadOperation, is there a way to get the
SideInput in `@GetInitialRestriction` or `@SplitRestriction` to get the List
Size and the amount of partitions we are going to process? or the approach you
were suggesting was something different? Thanks in advance.
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Issue Time Tracking
-------------------
Worklog Id: (was: 610782)
Time Spent: 2.5h (was: 2h 20m)
> 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: 2.5h
> Remaining Estimate: 0h
>
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