Prevent "div by 0" during PickSessionToShutdown routine (ydb-platform…

…#4509)
naspirato · May 15, 2024 · e63d6fe · e63d6fe
1 parent b1bc764
commit e63d6fe
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/ydb/core/kqp/proxy_service/kqp_proxy_service_impl.h b/ydb/core/kqp/proxy_service/kqp_proxy_service_impl.h
@@ -279,7 +279,7 @@ class TLocalSessionsRegistry {
 
     TKqpSessionInfo* PickSessionToShutdown(bool force, ui32 minReasonableToKick) {
         auto& sessions = force ? ReadySessions.at(0) : ReadySessions.at(1);
-        if (sessions.size() >= minReasonableToKick) {
+        if (!sessions.empty() && sessions.size() >= minReasonableToKick) {
             ui64 idx = RandomProvider->GenRand() % sessions.size();
             return StartShutdownSession(sessions[idx]);
         }