MediaWiki 1.16.0

[autoinstallsdev/mediawiki.git] / maintenance / lag.php

diff --git a/maintenance/lag.php b/maintenance/lag.php
new file mode 100644 (file)
index 0000000..47b4c47
--- /dev/null
+++ b/maintenance/lag.php
@@ -0,0 +1,51 @@
+<?php
+
+/**
+ * Shows database lag
+ *
+ * @ingroup Maintenance
+ */
+
+require_once( dirname(__FILE__) . '/Maintenance.php' );
+
+class DatabaseLag extends Maintenance {
+       public function __construct() {
+               parent::__construct();
+               $this->mDescription = "Shows database lag";
+               $this->addOption( 'r', "Don't exit immediately, but show the lag every 5 seconds" );
+       }
+
+       public function execute() {
+               if ( $this->hasOption( 'r' ) ) {
+                       $lb = wfGetLB();
+                       echo 'time     ';
+                       for( $i = 1; $i < $lb->getServerCount(); $i++ ) {
+                               $hostname = $lb->getServerName( $i );
+                               printf( "%-12s ", $hostname );
+                       }
+                       echo "\n";
+
+                       while( 1 ) {
+                               $lb->clearLagTimeCache();
+                               $lags = $lb->getLagTimes();
+                               unset( $lags[0] );
+                               echo gmdate( 'H:i:s' ) . ' ';
+                               foreach( $lags as $i => $lag ) {
+                                       printf( "%-12s " , $lag === false ? 'false' : $lag );
+                               }
+                               echo "\n";
+                               sleep( 5 );
+                       }
+               } else {
+                       $lb = wfGetLB();
+                       $lags = $lb->getLagTimes();
+                       foreach( $lags as $i => $lag ) {
+                               $name = $lb->getServerName( $i );
+                               $this->output( sprintf( "%-20s %s\n" , $name, $lag === false ? 'false' : $lag ) );
+                       }
+               }
+       }
+}
+
+$maintClass = "DatabaseLag";
+require_once( DO_MAINTENANCE );