Does coordinator take statistics from its preferred node only?

Tencent / TBase

TBase is an enterprise-level distributed HTAP database. Through a single database cluster to provide users with highly consistent distributed database services and high-performance data warehouse services, a set of integrated enterprise-level solutions is formed.

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Does coordinator take statistics from its preferred node only? #32

Closed yazun closed 4 years ago

yazun commented 4 years ago

This has been the situation with XL currently. Has TBase changed the logic and statistics are merged from all datanodes or analyze (coordinator) .. is still needed to propagate statistics to all coordinators?

Thanks, Krzysztof

SuCuicui commented 4 years ago

In the current code, coordinator pulls statistics result from all datanodes and merges them. We will improve this part in the next release coming soon. Please stay tuned.