cshuo opened a new issue, #18386:
URL: https://github.com/apache/hudi/issues/18386

   ### Task Description
   
   **What needs to be done:**
   * Align the Flink streaming write path with the new RLI 
deferred-initialization semantics, so the RLI writer is initialized only when 
index writes are actually needed (not eagerly at job startup).
   * Review and refactor Flink-side RLI initialization trigger points (for 
example: operator open, first write, checkpoint restore) to avoid conflicts 
with deferred initialization.
   
   **Why this task is needed:**
   * The deferred initialization for RLI is introduced in 
https://github.com/apache/hudi/pull/18353, but the Flink streaming write path 
is not fully adapted yet.
   Without this follow-up, Flink streaming may have mismatched initialization 
timing, causing unnecessary startup overhead,  and potential instability in 
recovery scenarios.
   
   ### Task Type
   
   Other
   
   ### Related Issues
   
   **Parent feature issue:** (if applicable )
   **Related issues:**
   NOTE: Use `Relationships` button to add parent/blocking issues after issue 
is created.
   


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