zuston opened a new pull request, #2667:
URL: https://github.com/apache/uniffle/pull/2667

   ### What changes were proposed in this pull request?
   
   Reconstruct the shuffle handle information if it hasn’t been updated. This 
means the latest shuffle handle data will no longer need to be transmitted 
through the RPC layer, reducing the load on the driver—especially when there 
are a large number of tasks.
   
   ### Why are the changes needed?
   
   For issue #2665: Once partition reassignment is enabled, the shuffle 
information is always retrieved when a task starts, which puts significant 
pressure on the Spark driver. Although in most cases the shuffle information 
remains unchanged, this behavior provides a natural point for optimization.
   
   ### Does this PR introduce _any_ user-facing change?
   
   No.
   
   ### How was this patch tested?
   
   Existing tests could cover this PR's change.
   


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