Tweaked polling time

diff --git a/includes/LoadBalancer.php b/includes/LoadBalancer.php
index 287ca8b..33cbe09 100644 (file)
--- a/includes/LoadBalancer.php
+++ b/includes/LoadBalancer.php
@@ -19,6 +19,12 @@ define( 'DB_LAST', -3 );     # Whatever database was used last
 define( 'DB_READ', -1 );
 define( 'DB_WRITE', -2 );
 
+
+# Scale polling time so that under overload conditions, the database server
+# receives a SHOW STATUS query at an average interval of this many microseconds
+define( 'AVG_STATUS_POLL', 2000 );
+
+
 /**
  * Database load balancing object
  *
@@ -198,7 +204,7 @@ class LoadBalancer {
                                                          $status['Threads_running'] > $this->mServers[$i]['max threads'] )
                                                        {
                                                                # Slave is lagged, wait for a while
-                                                               $sleepTime = 5000 * $status['Threads_connected'];
+                                                               $sleepTime = AVG_STATUS_POLL * $status['Threads_connected'];
 
                                                                # If we reach the timeout and exit the loop, don't use it
                                                                $i = false;