Bug Report
TiDB will report and log an error message if it detects data inconsistencies, but it only logs the index name. We don't know the table name! For example,
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logutil.Logger(ctx).Error("inconsistent index handles", zap.String("index", w.idxLookup.index.Name.O), |
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zap.Int("index_cnt", handleCnt), zap.Int("table_cnt", len(task.rows)), |
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zap.String("missing_handles", fmt.Sprint(GetLackHandles(task.handles, obtainedHandlesMap))), |
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zap.String("total_handles", fmt.Sprint(task.handles))) |
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// table scan in double read can never has conditions according to convertToIndexScan. |
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// if this table scan has no condition, the number of rows it returns must equal to the length of handles. |
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return errors.Errorf("inconsistent index %s handle count %d isn't equal to value count %d", |
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w.idxLookup.index.Name.O, handleCnt, len(task.rows)) |
TiDB should log enough information.