yiguolei commented on code in PR #45743:
URL: https://github.com/apache/doris/pull/45743#discussion_r1896442875
##########
be/src/vec/exec/scan/scanner_scheduler.cpp:
##########
@@ -254,6 +287,14 @@ void
ScannerScheduler::_scanner_scan(std::shared_ptr<ScannerContext> ctx,
}
if (!eos && !scanner->is_open()) {
+ if (state->enable_reserve_memory()) {
+ size_t block_avg_bytes = scanner->get_block_avg_bytes();
+ auto st =
thread_context()->try_reserve_memory(block_avg_bytes);
+ if (!st.ok()) {
+ handle_reserve_memory_failure(state, ctx, st,
block_avg_bytes);
Review Comment:
这里不能加这个，加了这个有可能会导致整个查询卡死。
我们现在scanner的调度，需要保证至少scanner 扫描出一个block
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