Use Knowhere AIO Context Init Defalut Value and Panic when Fail (#26286)

Signed-off-by: Patrick Weizhi Xu <weizhi.xu@zilliz.com>

internal/core/src/config/ConfigKnowhere.cpp

@@ -74,7 +74,10 @@ KnowhereSetSimdType(const char* value) {
 void
 KnowhereInitThreadPool(const uint32_t num_threads) {
     knowhere::ThreadPool::InitGlobalThreadPool(num_threads);
-    knowhere::KnowhereConfig::SetAioContextPool(num_threads, 32);
+    if (!knowhere::KnowhereConfig::SetAioContextPool(num_threads)) {
+        PanicInfo("Failed to set aio context pool with num_threads " +
+                  std::to_string(num_threads));
+    }
 }
 
 }  // namespace milvus::config

internal/core/thirdparty/knowhere/CMakeLists.txt

@@ -11,7 +11,7 @@
 # or implied. See the License for the specific language governing permissions and limitations under the License.
 #-------------------------------------------------------------------------------
 
-set( KNOWHERE_VERSION 4f99dc0)
+set( KNOWHERE_VERSION aa4a42f )
 
 message(STATUS "Building knowhere-${KNOWHERE_SOURCE_VER} from source")
 message(STATUS ${CMAKE_BUILD_TYPE})

internal/core/unittest/test_init.cpp

@@ -10,7 +10,10 @@
 // or implied. See the License for the specific language governing permissions and limitations under the License
 
 #include <gtest/gtest.h>
+#include <exception>
 
+#include "config/ConfigKnowhere.h"
+#include "gtest/gtest-death-test.h"
 #include "segcore/segcore_init_c.h"
 #include "test_utils/DataGen.h"
 
@@ -22,3 +25,15 @@ TEST(Init, Naive) {
     auto simd_type = SegcoreSetSimdType("auto");
     free(simd_type);
 }
+
+TEST(Init, KnowhereThreadPoolInit) {
+#ifdef BUILD_DISK_ANN
+    try {
+        milvus::config::KnowhereInitThreadPool(0);
+    } catch (std::exception& e) {
+        ASSERT_TRUE(std::string(e.what()).find(
+                        "Failed to set aio context pool") != std::string::npos);
+    }
+#endif
+    milvus::config::KnowhereInitThreadPool(8);
+}