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[feature](exchange) enable shared exchange sink buffer to reduce RPC concurrency #46764
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…n problem (apache#43284) Picked from the 2.1 branch, only the RPC profile-related code was selected. apache#39852 apache#40117 ``` DATA_STREAM_SINK_OPERATOR (id=2,dst_id=2): - RpcCount: sum 16, avg 4, max 4, min 4 - RpcMaxTime: avg 1.15ms, max 1.163ms, min 818.493us - RpcAvgTime: 11.850ms - RpcCount: 10 - RpcMaxTime: 86.891ms - RpcMinTime: 15.200ms - RpcSumTime: 118.503ms - SerializeBatchTime: 13.517ms - SplitBlockDistributeByChannelTime: 38.923ms - SplitBlockHashComputeTime: 2.659ms - UncompressedRowBatchSize: 135.19 KB - WaitForDependencyTime: 0ns - WaitForRpcBufferQueue: 0ns RpcInstanceDetails: - Instance 85d4f75b72a9ea61: Count: 4, MaxTime: 36.238ms, MinTime: 12.107ms, AvgTime: 21.722ms, SumTime: 86.891ms - Instance 85d4f75b72a9ea91: Count: 3, MaxTime: 11.107ms, MinTime: 2.431ms, AvgTime: 5.470ms, SumTime: 16.412ms - Instance 85d4f75b72a9eac1: Count: 3, MaxTime: 7.554ms, MinTime: 3.160ms, AvgTime: 5.066ms, SumTime: 15.200m ```
…concurrency. (apache#44850) In the past, each exchange sink had its own sink buffer. If the query concurrency is n, there would be n * n RPCs running concurrently in a typical shuffle scenario (each sender instance can send data to all downstream instances). Here, we introduce support for shared sink buffers. This does not reduce the total number of RPCs but can limit the number of concurrent RPCs.
Thank you for your contribution to Apache Doris. Please clearly describe your PR:
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run buildall |
TPC-H: Total hot run time: 41454 ms
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TPC-DS: Total hot run time: 191941 ms
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ClickBench: Total hot run time: 33.41 s
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What problem does this PR solve?
#43284
#44850
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