ans76 commented on a change in pull request #6979:
URL: https://github.com/apache/incubator-doris/pull/6979#discussion_r740071851



##########
File path: be/src/runtime/mem_tracker.h
##########
@@ -170,6 +172,12 @@ class MemTracker : public 
std::enable_shared_from_this<MemTracker> {
             Release(-bytes);
             return true;
         }
+        if (MemInfo::current_mem() + bytes >= MemInfo::mem_limit()) {
+            VLOG_RPC << "TryConsume failed, bytes=" << bytes
+                     << " process whole consumption=" << MemInfo::current_mem()
+                     << " mem limit=" << limit << " attempting to GC";

Review comment:
       That's may logging not accurate memory usage for that moment if set 
`refresh_current_memory_usage_interval_ms` longer? we experienced memory usage 
increasing fast in seconds.




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