[BEAM-10375] HBaseIO.Read not deterministic coder exception when executed with flink 1.10.1

• Type: Bug
• Status: Resolved
• Priority: P3
• Resolution: Won't Fix
• Affects Version/s: 2.21.0
• Fix Version/s: Missing
• Component/s: io-java-hbase
• Assignee: Unassigned
• Reporter: Richard Moorhead
• Created: 29/Jun/20 20:15
• Updated: 13/Jan/22 21:49
• Resolved: 14/Sep/21 23:19

Description

Given that HBaseIO.readAll() is applied to a PCollection<HBaseIO.Read>, the following exception is thrown when readAll is executed by the flink runner:

 The program finished with the following exception:

org.apache.flink.client.program.ProgramInvocationException: The main method caused an error: the keyCoder of a GroupByKey must be deterministic
        at org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:335)
        at org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:205)
        at org.apache.flink.client.ClientUtils.executeProgram(ClientUtils.java:138)
        at org.apache.flink.client.cli.CliFrontend.executeProgram(CliFrontend.java:662)
        at org.apache.flink.client.cli.CliFrontend.run(CliFrontend.java:210)
        at org.apache.flink.client.cli.CliFrontend.parseParameters(CliFrontend.java:893)
        at org.apache.flink.client.cli.CliFrontend.lambda$main$10(CliFrontend.java:966)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:422)
        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1692)
        at org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41)
        at org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:966)
Caused by: java.lang.IllegalStateException: the keyCoder of a GroupByKey must be deterministic
        at org.apache.beam.sdk.transforms.GroupByKey.expand(GroupByKey.java:234)
        at org.apache.beam.sdk.transforms.GroupByKey.expand(GroupByKey.java:110)
        at org.apache.beam.sdk.Pipeline.applyInternal(Pipeline.java:542)
        at org.apache.beam.sdk.Pipeline.applyTransform(Pipeline.java:476)
        at org.apache.beam.sdk.values.PCollection.apply(PCollection.java:355)
        at org.apache.beam.sdk.transforms.Reshuffle.expand(Reshuffle.java:87)
        at org.apache.beam.sdk.transforms.Reshuffle.expand(Reshuffle.java:49)
        at org.apache.beam.sdk.Pipeline.applyInternal(Pipeline.java:542)
        at org.apache.beam.sdk.Pipeline.applyTransform(Pipeline.java:493)
        at org.apache.beam.sdk.values.PCollection.apply(PCollection.java:368)
        at org.apache.beam.runners.core.construction.SplittableParDoNaiveBounded$SplittableProcessNaive.expand(SplittableParDoNaiveBounded.java:
110)
        at org.apache.beam.runners.core.construction.SplittableParDoNaiveBounded$SplittableProcessNaive.expand(SplittableParDoNaiveBounded.java:
95)
        at org.apache.beam.sdk.Pipeline.applyReplacement(Pipeline.java:569)
        at org.apache.beam.sdk.Pipeline.replace(Pipeline.java:294)
        at org.apache.beam.sdk.Pipeline.replaceAll(Pipeline.java:212)
        at org.apache.beam.runners.flink.FlinkPipelineExecutionEnvironment.translate(FlinkPipelineExecutionEnvironment.java:114)
        at org.apache.beam.runners.flink.FlinkRunner.run(FlinkRunner.java:107)
        at org.apache.beam.sdk.Pipeline.run(Pipeline.java:317)
        at org.apache.beam.sdk.Pipeline.run(Pipeline.java:303)
        at com.cerner.pophealth.mpm.processing.beam.pipeline.bounded.EmpiPersonConversionPipeline.main(EmpiPersonConversionPipeline.java:96)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:321)
        ... 11 more
Caused by: org.apache.beam.sdk.coders.Coder$NonDeterministicException: SerializableCoder(org.apache.beam.sdk.io.hbase.HBaseIO$Read) is not deter
ministic because:
        Java Serialization may be non-deterministic.
        at org.apache.beam.sdk.coders.SerializableCoder.verifyDeterministic(SerializableCoder.java:205)
        at org.apache.beam.sdk.transforms.GroupByKey.expand(GroupByKey.java:232)