Set memory limit for IResearch

k0ushal · k0ushal · commit 4565ea4e5dd2 · 2025-06-11T06:27:52.000Z
diff --git a/arangod/IResearch/IResearchFeature.cpp b/arangod/IResearch/IResearchFeature.cpp
@@ -85,6 +85,8 @@
 #include "VocBase/LogicalCollection.h"
 #include "VocBase/LogicalDataSource.h"
 #include "VocBase/LogicalView.h"
+#include "Basics/PhysicalMemory.h"
+#include "resource_manager.hpp"
 
 #include <absl/strings/str_cat.h>
 
@@ -1105,6 +1107,12 @@ void IResearchFeature::validateOptions(
 void IResearchFeature::prepare() {
   TRI_ASSERT(isEnabled());
 
+  // Set memory limits for IResearchFeature to 50% of available memory.
+  auto physicalMem = static_cast<size_t>(PhysicalMemory::getValue());
+  irs::IResearchMemoryManager::GetInstance()->SetMemoryLimit(physicalMem / 2);
+  LOG_TOPIC("462d7", INFO, arangodb::iresearch::TOPIC) << "Setting IResearch memory limit to " <<
+    physicalMem / 2;
+
   // load all known codecs
   ::irs::formats::init();
 
