From 5cbf42b12d047d07ca1fe717c6f86779416be5a2 Mon Sep 17 00:00:00 2001
From: Razvan Becheriu <razvan@isc.org>
Date: Thu, 4 Jul 2019 05:04:30 +0300
Subject: [PATCH] [#639,!410] clear cache_ptr_ before unloading library

---
 src/lib/dhcpsrv/host_mgr.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/lib/dhcpsrv/host_mgr.cc b/src/lib/dhcpsrv/host_mgr.cc
index 94859dfad3..4ed8b9ee23 100644
--- a/src/lib/dhcpsrv/host_mgr.cc
+++ b/src/lib/dhcpsrv/host_mgr.cc
@@ -48,6 +48,9 @@ HostMgr::addBackend(const std::string& access) {
 
 bool
 HostMgr::delBackend(const std::string& db_type) {
+    if (getHostMgrPtr()->cache_ptr_->getType() == db_type) {
+        getHostMgrPtr()->cache_ptr_.reset();
+    }
     return (HostDataSourceFactory::del(getHostMgrPtr()->alternate_sources_, db_type));
 }
 
-- 
2.47.2