2e95b1c389
When two colocate tables make join operation, to make join operation locally, the tablet belongs to the same bucket sequence will be distributed to the same host. When choosing which host for a bucket sequence, it takes random strategy. Random strategy can not make query task load balance logically for one query. Therefore, this patch takes round-robin strategy, make buckets distributed evenly. For example, if there are 6 bucket sequences and 3 hosts, it is better to distributed 2 buckets sequence for every host.
# fe-common This module is used to store some common classes of other modules. # spark-dpp This module is Spark DPP program, used for Spark Load function. Depends: fe-common # fe-core This module is the main process module of FE. Depends: fe-common, spark-dpp