rdbms: lower value of MAX_LAG_DEFAULT to 6

This matches the "max lag" value used in the server configuration
array for WMF sites for a long time.

Change-Id: Ic2e82a8cc0932e7cf28ababc2eb0849406da06ef

diff --git a/includes/libs/rdbms/loadbalancer/LoadBalancer.php b/includes/libs/rdbms/loadbalancer/LoadBalancer.php
index 60b3ac4..7bc7043 100644 (file)
--- a/includes/libs/rdbms/loadbalancer/LoadBalancer.php
+++ b/includes/libs/rdbms/loadbalancer/LoadBalancer.php
@@ -134,7 +134,7 @@ class LoadBalancer implements ILoadBalancer {
        const CONN_HELD_WARN_THRESHOLD = 10;
 
        /** @var int Default 'maxLag' when unspecified */
-       const MAX_LAG_DEFAULT = 10;
+       const MAX_LAG_DEFAULT = 6;
        /** @var int Default 'waitTimeout' when unspecified */
        const MAX_WAIT_DEFAULT = 10;
        /** @var int Seconds to cache master server read-only status */