added purge script for master/slave db

htdocs/util-local/prodsys/Contents

@@ -0,0 +1,2 @@
+This directory contains files which will reside outside the code directory tree
+on a production system.

htdocs/util-local/prodsys/purge_master_logs.php

@@ -0,0 +1,45 @@
+#!/usr/bin/php -q
+<?php
+/***************************************************************************
+ *  You can find the license in the docs directory
+ *
+ *  Cronjob to clean up master logs that we dont need any more for any
+ *  configured slave server. Run this script once every day.
+ *
+ *  The user account given below needs SUPER privileges.
+ *  This is why you want to place this file outside PHP open_basedir
+ *  and restrict read access to the root user.
+ ***************************************************************************/
+
+  // begin configuration
+  $dbserver = '';
+  $dbname = '';
+  $dbuser = '';
+  $dbpassword = '';
+  // end configuration
+
+	$dblink = @mysql_connect($dbserver, $dbuser, $dbpassword);
+	if ($dblink === false)
+		exit;
+
+	if (mysql_select_db($dbname, $dblink) == false)
+	{
+		mysql_close($dblink);
+		exit;
+	}
+
+	$rs = mysql_query("SELECT COUNT(*) AS `c` FROM `sys_repl_slaves` WHERE (`active`=1 AND `online`=0) OR (`active`=1 AND `online`=1 AND `current_log_name`='')", $dblink);
+	$r = mysql_fetch_array($rs);
+	mysql_free_result($rs);
+
+	if ($r[0] == 0)
+	{
+		$rs = mysql_query("SELECT MIN(`current_log_name`) FROM `sys_repl_slaves` WHERE `active`=1 AND `online`=1", $dblink);
+		$rLastLog = mysql_fetch_array($rs);
+		mysql_free_result($rs);
+
+		mysql_query("PURGE MASTER LOGS TO '" . mysql_real_escape_string($rLastLog[0], $dblink) . "'", $dblink);
+	}
+
+	mysql_close($dblink);
+?>