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3.0集群升级到4.0后,触发 workload policy 行数熔断

Asked May 11 Modified May 12
Viewed 90
4.1 4.0

4.x 的行数统计路径:
workload policy
IOContext::scan_rows
OlapScanner::update_realtime_counters() 中上报
stats.raw_rows_read ← 这是谓词过滤前的行数

导致扫描行变高,目前优化方案如下

image.png

edited May 12
labuladuo17
asked May 11
1 Answers

看了下4.x的行为更合理,无需改动

edited May 12
labuladuo17
answered May 12
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