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https://issues.apache.org/jira/browse/HUDI-1912?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Vinoth Chandar updated HUDI-1912:
---------------------------------
Fix Version/s: 0.9.0
> Presto defaults to GenericHiveRecordCursor for all Hudi tables
> --------------------------------------------------------------
>
> Key: HUDI-1912
> URL: https://issues.apache.org/jira/browse/HUDI-1912
> Project: Apache Hudi
> Issue Type: Bug
> Components: Presto Integration
> Affects Versions: 0.7.0
> Reporter: satish
> Priority: Blocker
> Fix For: 0.9.0
>
>
> See code here
> https://github.com/prestodb/presto/blob/2ad67dcf000be86ebc5ff7732bbb9994c8e324a8/presto-hive/src/main/java/com/facebook/presto/hive/parquet/ParquetPageSourceFactory.java#L168
> Starting Hudi 0.7, HoodieInputFormat comes with
> UseRecordReaderFromInputFormat annotation. As a result, we are skipping all
> optimizations in parquet PageSource and using basic GenericHiveRecordCursor
> which has several limitations:
> 1) No support for timestamp
> 2) No support for synthesized columns
> 3) No support for vectorized reading?
> Example errors we saw:
> Error#1
> {code}
> java.lang.IllegalStateException: column type must be regular
> at
> com.google.common.base.Preconditions.checkState(Preconditions.java:507)
> at
> com.facebook.presto.hive.GenericHiveRecordCursor.<init>(GenericHiveRecordCursor.java:167)
> at
> com.facebook.presto.hive.GenericHiveRecordCursorProvider.createRecordCursor(GenericHiveRecordCursorProvider.java:79)
> at
> com.facebook.presto.hive.HivePageSourceProvider.createHivePageSource(HivePageSourceProvider.java:449)
> at
> com.facebook.presto.hive.HivePageSourceProvider.createPageSource(HivePageSourceProvider.java:177)
> at
> com.facebook.presto.spi.connector.classloader.ClassLoaderSafeConnectorPageSourceProvider.createPageSource(ClassLoaderSafeConnectorPageSourceProvider.java:63)
> at
> com.facebook.presto.split.PageSourceManager.createPageSource(PageSourceManager.java:80)
> at
> com.facebook.presto.operator.ScanFilterAndProjectOperator.getOutput(ScanFilterAndProjectOperator.java:231)
> at com.facebook.presto.operator.Driver.processInternal(Driver.java:418)
> at
> com.facebook.presto.operator.Driver.lambda$processFor$9(Driver.java:301)
> at com.facebook.presto.operator.Driver.tryWithLock(Driver.java:722)
> at com.facebook.presto.operator.Driver.processFor(Driver.java:294)
> at
> com.facebook.presto.execution.SqlTaskExecution$DriverSplitRunner.processFor(SqlTaskExecution.java:1077)
> at
> com.facebook.presto.execution.executor.PrioritizedSplitRunner.process(PrioritizedSplitRunner.java:162)
> at
> com.facebook.presto.execution.executor.TaskExecutor$TaskRunner.run(TaskExecutor.java:545)
> at
> com.facebook.presto.$gen.Presto_0_247_17f857e____20210506_210241_1.run(Unknown
> Source)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
> at java.base/java.lang.Thread.run(Thread.java:834)
> {code}
> Error#2
> {code}
> java.lang.ClassCastException: class org.apache.hadoop.io.LongWritable cannot
> be cast to class org.apache.hadoop.hive.serde2.io.TimestampWritable
> (org.apache.hadoop.io.LongWritable and
> org.apache.hadoop.hive.serde2.io.TimestampWritable are in unnamed module of
> loader com.facebook.presto.server.PluginClassLoader @5c4e86e7)
> at
> org.apache.hadoop.hive.serde2.objectinspector.primitive.WritableTimestampObjectInspector.getPrimitiveJavaObject(WritableTimestampObjectInspector.java:39)
> at
> org.apache.hadoop.hive.serde2.objectinspector.primitive.WritableTimestampObjectInspector.getPrimitiveJavaObject(WritableTimestampObjectInspector.java:25)
> at
> com.facebook.presto.hive.GenericHiveRecordCursor.parseLongColumn(GenericHiveRecordCursor.java:286)
> at
> com.facebook.presto.hive.GenericHiveRecordCursor.parseColumn(GenericHiveRecordCursor.java:550)
> at
> com.facebook.presto.hive.GenericHiveRecordCursor.isNull(GenericHiveRecordCursor.java:508)
> at
> com.facebook.presto.hive.HiveRecordCursor.isNull(HiveRecordCursor.java:233)
> at
> com.facebook.presto.spi.RecordPageSource.getNextPage(RecordPageSource.java:112)
> at
> com.facebook.presto.operator.TableScanOperator.getOutput(TableScanOperator.java:251)
> at com.facebook.presto.operator.Driver.processInternal(Driver.java:418)
> at
> com.facebook.presto.operator.Driver.lambda$processFor$9(Driver.java:301)
> at com.facebook.presto.operator.Driver.tryWithLock(Driver.java:722)
> at com.facebook.presto.operator.Driver.processFor(Driver.java:294)
> at
> com.facebook.presto.execution.SqlTaskExecution$DriverSplitRunner.processFor(SqlTaskExecution.java:1077)
> at
> com.facebook.presto.execution.executor.PrioritizedSplitRunner.process(PrioritizedSplitRunner.java:162)
> at
> com.facebook.presto.execution.executor.TaskExecutor$TaskRunner.run(TaskExecutor.java:545)
> at
> com.facebook.presto.$gen.Presto_0_247_17f857e____20210506_210241_1.run(Unknown
> Source)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
> at java.base/java.lang.Thread.run(Thread.java:834)
> {code}
> In addition to errors above, performance also seems to have slowed down
> substantially.
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