[Optimize]Take all scan nodes of one sql into consideration when select host for a tablet #4984
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xinghuayu007
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@xinghuayu007 please resolve conflict firstly |
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fe/fe-core/src/test/java/org/apache/doris/qe/CoordinatorTest.java
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…ct host for a tablet (apache#4984) Currently when a scan node scans many tablets, Doris will assure it load balance when choosing which replica for scan task to be executed. But it does not take other scan nodes into consideration to implement a global load balance. This patch tries to make all tables of all scan nodes to be load balance. Co-authored-by: wangxixu <wangxixu@xiaomi.com>
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Proposed changes
Currently when a scan node scans many tablets, Doris will assure it load balance when choosing which replica for scan task to be executed. But it does not take other scan nodes into consideration to implement a global load balance. This patch tries to make all tables of all scan nodes to be load balance.
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