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https://issues.apache.org/jira/browse/BEAM-6764?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Niel Markwick closed BEAM-6764.
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Fix Version/s: 2.23.0
Resolution: Fixed
> OutOfMemory Exception in Dataflow Spanner Write Mutations
> ---------------------------------------------------------
>
> Key: BEAM-6764
> URL: https://issues.apache.org/jira/browse/BEAM-6764
> Project: Beam
> Issue Type: Bug
> Components: io-java-gcp
> Affects Versions: 2.9.0, 2.10.0, 2.11.0
> Reporter: Joshua
> Priority: P3
> Fix For: 2.23.0
>
>
> Since I upgraded my apache beam sdk version to >= 2.9.0, I have been noticing
> OOM exceptions while using the dataflow runner to write mutations to spanner.
> I have been using n1-standard-4 since version 2.9.0. On that version, it
> works. But on higher versions, I get the exception.
>
> The stackdriver logs is provided below
> {code:java}
> java.lang.OutOfMemoryError: Java heap space
> java.util.ArrayList.<init>(ArrayList.java:152)
> org.apache.beam.sdk.io.gcp.spanner.SpannerIO$GatherBundleAndSortFn.initSorter(SpannerIO.java:1056)
> org.apache.beam.sdk.io.gcp.spanner.SpannerIO$GatherBundleAndSortFn.startBundle(SpannerIO.java:1049)
> {code}
> I have a very basic PTransform for writing to Spanner:
> {code:java}
> SpannerIO.write().withInstanceId(options.getSpannerInstanceId())
> .withDatabaseId(options.getSpannerDatabaseId())
> .withProjectId(options.getProject())
> .withFailureMode(SpannerIO.FailureMode.REPORT_FAILURES);
> {code}
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