ChiehFu opened a new issue, #10115: URL: https://github.com/apache/hudi/issues/10115
**_Tips before filing an issue_** - Have you gone through our [FAQs](https://hudi.apache.org/learn/faq/)? - Join the mailing list to engage in conversations and get faster support at [email protected]. - If you have triaged this as a bug, then file an [issue](https://issues.apache.org/jira/projects/HUDI/issues) directly. **Describe the problem you faced** Hello, Recently we migrated our datasets from Hudi 0.8 to Hudi 0.12.3 and started experiencing slowness in indexing stage in some tables during upserts. After looking into spark steps, we found out that there was one particular stage where Hudi set a very low value parallelism for a indexing stage (stage 32 in the screenshoot) and ended up causing long duration and shuffle spill which further slowdown the stage. We set `hoodie.bloom.index.parallelism=2000` however, it doesn't seem to affect the parallelism of that particular stage. In Hudi 0.8, Hudi used to use the value we set in `hoodie.upsert.shuffle.parallelism` for parallelism for this stage, however it seems in Hudi 0.12, the parallelism is being calculated dynamically. Can you please help us understand if there is any Hudi configuration we should use to increase the parallelism for the stage? We also tried setting `hoodie.copyonwrite.record.size.estimate` to a very small value as it seems help forcing Hudi to use a larger parallelism for indexing initially, but it's very inconsistent as we still see small values being set for the stage across upsert jobs. **Environment Description** * Hudi version : 0.12.3 * Spark version : 3.1.3 * Hive version : 3.1.3 * Hadoop version : 3.3.3 * Storage (HDFS/S3/GCS..) : S3 * Running on Docker? (yes/no) : no * EMR: 6.10.0 **Additional context** Hudi configs ``` hoodie.metadata.enable: true hoodie.metadata.validate: true hoodie.cleaner.commits.retained: 72 hoodie.keep.min.commits: 100 hoodie.keep.max.commits: 150 hoodie.datasource.write.payload.class: org.apache.hudi.common.model.DefaultHoodieRecordPayload hoodie.index.type: BLOOM hoodie.bloom.index.parallelism: 2000 hoodie.copyonwrite.record.size.estimate: 1 hoodie.metadata.enable: true hoodie.datasource.write.table.type: COPY_ON_WRITE hoodie.insert.shuffle.parallelism: 1500 hoodie.datasource.write.operation: upsert hoodie.datasource.hive_sync.partition_extractor_class: org.apache.hudi.hive.MultiPartKeysValueExtractor hoodie.datasource.write.keygenerator.class: org.apache.hudi.keygen.ComplexKeyGenerator ``` <img width="2313" alt="Screenshot 2023-11-15 at 8 20 39 PM" src="https://github.com/apache/hudi/assets/11819388/e0381e62-0690-4bce-8fe3-15f6590870bb";> <img width="2297" alt="Screenshot 2023-11-15 at 8 32 48 PM" src="https://github.com/apache/hudi/assets/11819388/3a481bb8-c6ff-456d-baca-b60b22788abf";> -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
