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*: use summary log #113
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*: use summary log #113
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overvenus
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Dec 29, 2020
* config,restore: introduced `[mydumper] batch-size` Removed `[tikv-importer] batch-size` to avoid confusion. Removed `[mydumper] min-region-size` since it is useless now. * restore,mydump: pre-allocate engine IDs * restore: separate table checkpoints and engine checkpoints * importer: stop exposing the UUID * checkpoints: make checkpoint diff understand 1 table = many engines * checkpoints: make file checkpoints recognize multiple engines * checkpoints: migrated MySQL-based checkpoint to multi-engine as well * restore: adapt restore workflow for multi-engine * tests: added test case for multi-engine * *: fixed code * *: addressed comments * *: addressed comments * Support non-uniform batch size (pingcap#114) * mydump: non-uniform batch size * *: make the `batch-size-scale` configurable * *: implemented the optimized non-uniform strategy * tests: due to change of strategy, checkpoint_engines count becomes 4 again * mydump/region: slightly adjust the batch size computation * Use the exact result of 1/Beta(N, R) instead of an approximation * When the number of engines is small and the total engine size of the first (table-concurrency) batches exceed the table size, the last batch was truncated, and disrupt the pipeline. Now in these case we will reduce the batch size to avoid this disruption. * restore: log the SQL size and KV size of each engine for debugging * config: change default batch size and ratio given experiment result * config: added more explanation about batch-import-ratio Co-authored-by: Lonng <chris@lonng.org>
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