caiconghui commented on code in PR #26611:
URL: https://github.com/apache/doris/pull/26611#discussion_r1390438301
##########
be/src/vec/sink/vtablet_finder.cpp:
##########
@@ -95,8 +95,22 @@ Status OlapTabletFinder::find_tablets(RuntimeState* state,
Block* block, int row
if (_find_tablet_mode == FindTabletMode::FIND_TABLET_EVERY_ROW) {
_vpartition->find_tablets(block, qualified_rows, partitions,
tablet_index);
} else {
+ // for random distribution
_vpartition->find_tablets(block, qualified_rows, partitions,
tablet_index,
&_partition_to_tablet_map);
+ if (_find_tablet_mode == FindTabletMode::FIND_TABLET_EVERY_BATCH) {
Review Comment:
the main contribution of random is to send the whole data batch to one
tablet, not save the find tablet time, which operation is light, and here
_partition_to_tablet_map size is small and not the bottleneck for distributing
data
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