Nicholas Jiang

[HUDI-4551] The default value of READ_TASKS, WRITE_TASKS, CLUSTERING_TASKS is the parallelism of the execution environment

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## What is the purpose of the pull request The default value of `READ_TASKS`, `WRITE_TASKS`, `CLUSTERING_TASKS` is 4, which could be the parallelism of the execution environment. ## Brief change...

Implement a highly available embedded KV storage with DLedger apply log to HPPC HashMap

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For implementing a highly available embedded KV storage with DLedger, consider applying HPK to these local maps, such as HashMap.Does this consider HPPC high-performance HashMaps here？

Support Direct IO

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Your question can sofa-tracer support direct io when performing io operation？This direct io could improve the trace io performance.Direct io library:https://github.com/smacke/jaydio Your scenes describe your use scenes (why need this...

### Your question Lookout metrics storage extension supports HBase adaption. ### Environment - SOFALookout version: - JVM version (e.g. `java -version`): - OS version (e.g. `uname -a`): - Maven version:...

[ARCTIC-108][Flink] Support projection push down to arctic source reader

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Fix #108. `ArcticDynamicSource` should implement the `SupportsProjectionPushDown` interface to accelerate data querying. **The brief change log** - `ArcticDynamicSource` and `KafkaDynamicSource` implement the `SupportsProjectionPushDown` interface to support `supportsNestedProjection` and `applyProjection` methods.

Arctic support Flink processing engines with 1.12.x and 1.14.x, but Flink current version is 1.15.x. Arctic needs to support Flink 1.15 version.

Are you using AIFlow?

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## Are you using AIFlow? If you are using AIFlow, first we would like to Thank You. Here, we sincerely invite you to take a minute to feedback on your...

Are you using RocketMQ Flink?

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## Are you using RocketMQ Flink? If you are using RocketMQ Flink, first we would like to Thank You. Here, we sincerely invite you to take a minute to feedback...

[Feature Request]Flink Connector supports the `SupportsReadingMetadata` and `SupportsWritingMetadata` interfaces

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`SupportsReadingMetadata` supports reading metadata columns and `SupportsWritingMetadata` supports writing metadata columns. Hence Flink Connector could support the `SupportsReadingMetadata` and `SupportsWritingMetadata` interfaces to read and write the metadata of Delta for...