From 4fc1f2f2172d423f1ed2e441bec6ca544c32b2ee Mon Sep 17 00:00:00 2001
From: Shish <shish@shishnet.org>
Date: Mon, 5 Aug 2013 20:21:46 +0100
Subject: [PATCH] save cached config when saving database config, fixes #311

---
 core/config.class.php | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/core/config.class.php b/core/config.class.php
index 285fb352..66d5d58a 100644
--- a/core/config.class.php
+++ b/core/config.class.php
@@ -211,7 +211,9 @@ class DatabaseConfig extends BaseConfig {
 			$this->database->Execute("DELETE FROM config WHERE name = :name", array("name"=>$name));
 			$this->database->Execute("INSERT INTO config VALUES (:name, :value)", array("name"=>$name, "value"=>$this->values[$name]));
 		}
-		$this->database->cache->delete("config");
+		// rather than deleting and having some other request(s) do a thundering
+		// herd of race-conditioned updates, just save the updated version once here
+		$this->database->cache->set("config", $this->values);
 	}
 }