From 0419a40e6ff93949137c1cb5ff547ef73e8f9351 Mon Sep 17 00:00:00 2001
From: Kishore Nallan <kishorenc@gmail.com>
Date: Wed, 24 May 2023 17:30:46 +0530
Subject: [PATCH] Upgrade lock for cache erase.

---
 src/core_api.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/core_api.cpp b/src/core_api.cpp
index 3d33ff86..d5d881a2 100644
--- a/src/core_api.cpp
+++ b/src/core_api.cpp
@@ -362,6 +362,8 @@ bool get_search(const std::shared_ptr<http_req>& req, const std::shared_ptr<http
             }
 
             // Result found in cache but ttl has lapsed.
+            lock.unlock();
+            std::unique_lock ulock(mutex);
             res_cache.erase(req_hash);
         }
     }
@@ -456,6 +458,8 @@ bool post_multi_search(const std::shared_ptr<http_req>& req, const std::shared_p
             }
 
             // Result found in cache but ttl has lapsed.
+            lock.unlock();
+            std::unique_lock ulock(mutex);
             res_cache.erase(req_hash);
         }
     }