1 files changed, 4 insertions, 2 deletions
diff --git a/includes/ForkController.php b/includes/ForkController.php
index e5b44c2b..d87dfb1e 100644
--- a/includes/ForkController.php
+++ b/includes/ForkController.php
@@ -115,15 +115,17 @@ class ForkController {
 	}
 
 	protected function prepareEnvironment() {
-		global $wgCaches, $wgMemc;
+		global $wgMemc;
 		// Don't share DB or memcached connections
 		wfGetLBFactory()->destroyInstance();
-		$wgCaches = array();
+		ObjectCache::clear();
 		unset( $wgMemc );
 	}
 
 	/**
 	 * Fork a number of worker processes.
+	 *
+	 * return string
 	 */
 	protected function forkWorkers( $numProcs ) {
 		$this->prepareEnvironment();