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https://issues.apache.org/jira/browse/HUDI-5323?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Raymond Xu updated HUDI-5323:
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Sprint: 2022/12/12, 0.13.0 Final Sprint, 0.13.0 Final Sprint 2, 0.13.0
Final Sprint 3, Sprint 2023-01-31 (was: 2022/12/12, 0.13.0 Final Sprint,
0.13.0 Final Sprint 2, 0.13.0 Final Sprint 3)
> Decouple virtual key with writing bloom filters to parquet files
> ----------------------------------------------------------------
>
> Key: HUDI-5323
> URL: https://issues.apache.org/jira/browse/HUDI-5323
> Project: Apache Hudi
> Issue Type: Improvement
> Components: index, writer-core
> Reporter: Ethan Guo
> Assignee: Ethan Guo
> Priority: Critical
> Labels: pull-request-available
> Fix For: 0.13.0
>
>
> When the virtual key feature is enabled by setting
> hoodie.populate.meta.fields to false, the bloom filters are not written to
> parquet base files in the write transactions. Relevant logic in
> HoodieFileWriterFactory class:
> {code:java}
> private static <T extends HoodieRecordPayload, R extends IndexedRecord>
> HoodieFileWriter<R> newParquetFileWriter(
> String instantTime, Path path, HoodieWriteConfig config, Schema schema,
> HoodieTable hoodieTable,
> TaskContextSupplier taskContextSupplier, boolean populateMetaFields)
> throws IOException {
> return newParquetFileWriter(instantTime, path, config, schema,
> hoodieTable.getHadoopConf(),
> taskContextSupplier, populateMetaFields, populateMetaFields);
> }
> private static <T extends HoodieRecordPayload, R extends IndexedRecord>
> HoodieFileWriter<R> newParquetFileWriter(
> String instantTime, Path path, HoodieWriteConfig config, Schema schema,
> Configuration conf,
> TaskContextSupplier taskContextSupplier, boolean populateMetaFields,
> boolean enableBloomFilter) throws IOException {
> Option<BloomFilter> filter = enableBloomFilter ?
> Option.of(createBloomFilter(config)) : Option.empty();
> HoodieAvroWriteSupport writeSupport = new HoodieAvroWriteSupport(new
> AvroSchemaConverter(conf).convert(schema), schema, filter);
> HoodieParquetConfig<HoodieAvroWriteSupport> parquetConfig = new
> HoodieParquetConfig<>(writeSupport, config.getParquetCompressionCodec(),
> config.getParquetBlockSize(), config.getParquetPageSize(),
> config.getParquetMaxFileSize(),
> conf, config.getParquetCompressionRatio(),
> config.parquetDictionaryEnabled());
> return new HoodieAvroParquetWriter<>(path, parquetConfig, instantTime,
> taskContextSupplier, populateMetaFields);
> } {code}
> Given that bloom filters are absent, when using Bloom Index on the same
> table, the writer encounters NPE (HUDI-5319).
> We should decouple the virtual key feature with bloom filter and always write
> the bloom filters to the parquet files.
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