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https://issues.apache.org/jira/browse/BEAM-5445?focusedWorklogId=157191&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-157191
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ASF GitHub Bot logged work on BEAM-5445:
----------------------------------------
Author: ASF GitHub Bot
Created on: 22/Oct/18 20:49
Start Date: 22/Oct/18 20:49
Worklog Time Spent: 10m
Work Description: chamikaramj commented on a change in pull request
#6478: [BEAM-5445] [BEAM-4796] [BEAM-3516] SpannerIO: Only batch on the current
bundle. Adds streaming support
URL: https://github.com/apache/beam/pull/6478#discussion_r226743200
##########
File path:
sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/spanner/SpannerIO.java
##########
@@ -781,11 +817,29 @@ public Write withFailureMode(FailureMode failureMode) {
return toBuilder().setFailureMode(failureMode).build();
}
- /** Specifies the cell mutation limit. */
+ /** Specifies the cell mutation limit (maxumum number of mutated cells per
batch). */
public Write withMaxNumMutations(long maxNumMutations) {
return toBuilder().setMaxNumMutations(maxNumMutations).build();
}
+ /**
+ * Specifies an input PCollection that can be used with a {@code
Wait.on(signal)} to indicate
+ * when the database schema is ready. To be used when the schema creation
is part of the
+ * pipeline to prevent the connector reading the schema too early.
+ */
+ public Write withSchemaReadySignal(PCollection signal) {
Review comment:
From this API it's not clear what has to be specified here. What would the
PCollection entail ?
Can this be simplified to a callback function which the Write transform will
invoke to determine if the schema is ready ?
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Issue Time Tracking
-------------------
Worklog Id: (was: 157191)
Time Spent: 3h 10m (was: 3h)
> Update SpannerIO to support unbounded writes
> --------------------------------------------
>
> Key: BEAM-5445
> URL: https://issues.apache.org/jira/browse/BEAM-5445
> Project: Beam
> Issue Type: Improvement
> Components: io-java-gcp
> Reporter: Chamikara Jayalath
> Assignee: Niel Markwick
> Priority: Major
> Fix For: 2.9.0
>
> Time Spent: 3h 10m
> Remaining Estimate: 0h
>
> Currently, due to a known issue, streaming pipelines that use SpannerIO.Write
> do not actually write to Spanner.
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