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The MPC logic comprises two parts, as follows.

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Part 1: Start MPC Preprocessor

Start the MPC Preprocessor:

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Update MPC_CALC_EXECUTION table with the failed status and stats.

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Part 2: Perform for Each MPC Engine

In each MPC engine:

1. Lock the entity in ENTITY_COMMIT_CHECK.
2. Determine all PERF_ROLLUP_RETURN_ID values that need to be updated.
3. Interpret SCHEDULE_DEF USER_DATA from MPC preprocessor.

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