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branch-3.0: [performance](load) increase max_broker_concurrency to 100 #44929 - #45238
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dataroaring
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Dec 11, 2024
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Increase default `max_broker_concurrency` to 100 to improve broker load performance. This option will affect the max number of scan / sink instances allowed in a broker load. ``` parallel instance = min(max_broker_concurrency, source file size / min_bytes_per_broker_scanner, num backends * load_parallelism) ``` S3 load time of tpcds_1000g catalog_sales: * before: 438s * after: 225s
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Cherry-picked from #44929