[PR] [kv] Make RocksDB direct I/O configurable [fluss]

["platinumhamburg (via GitHub)" <gi...@apache.org>]

platinumhamburg opened a new pull request, #4475:
URL: https://github.com/apache/fluss/pull/4475

   ### Purpose
   
   Linked issue: closes #4474
   
   Allow TabletServer operators to configure RocksDB Direct I/O for primary key table SST files.
   
   ### Brief change log
   
   - Add separate, default-disabled options for direct SST reads and direct flush/compaction I/O.
   - Apply both options when opening each RocksDB instance.
   - Verify that configured values reach RocksDB `DBOptions`.
   
   ### Tests
   
   - `./mvnw -pl fluss-server -am -Dtest=RocksDBResourceContainerTest -Dsurefire.failIfNoSpecifiedTests=false test` (11 tests passed)
   
   ### API and Format
   
   Adds two TabletServer configuration keys. No storage format change.
   
   ### Documentation
   
   The configuration option descriptions cover scope, defaults, and activation when a RocksDB instance opens.


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Re: [PR] [kv] Make RocksDB direct I/O configurable [fluss]

["platinumhamburg (via GitHub)" <gi...@apache.org>]

platinumhamburg merged PR #4475:
URL: https://github.com/apache/fluss/pull/4475


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