morningman opened a new pull request, #28369:
URL: https://github.com/apache/doris/pull/28369
1. Use consistent hash algo as the default assigner for file query scan node
A consistent assignment can better utilize the page cache of BE node.
2. Cache the consistent hash ring
Init a consistent hash ring is time-consuming because there a thousands
of virtual node need to be added.
So cache it for better performance
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