Rangsh commented on PR #12173:
URL: https://github.com/apache/seatunnel/pull/12173#issuecomment-5596899817

   Update after the hung / failed Diagnostics:
   
   1. [Run 
34309225279](https://github.com/Rangsh/seatunnel/actions/runs/34309225279) 
(`profile=all`, count=1000) hung ~2h → cancelled.
   2. [Run 
34317023975](https://github.com/Rangsh/seatunnel/actions/runs/34317023975) on 
`432bdb3d9` failed with **`Java heap space` inside `WALReader.loadAllData` / 
`FileMapStore.loadAll`** while sampling durability under 
`initialStoredJobCount=1000` (first-iteration full reload stacked on resident 
pressure).
   
   Pushed `5bbc304b2`:
   - mid-trial MapStore reload only when `initialStoredJobCount=0` (first 
iteration);
   - trial sample reloads **one representative key** (same full-WAL cost) and 
asserts the **whole growth batch** remains resident;
   - every iteration still checks the whole batch resident; cleanup failures 
stay suppressed.
   
   Re-dispatched after wall+JFR for `completedJobHistoryGrowth` @1000: 
https://github.com/Rangsh/seatunnel/actions/runs/34318323026  
   Local smoke with `-Xmx2g -f1 -wi1 -i2` on this head completed without OOM. 
Will queue the matching `dev` before run next.


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