ad776c7d5f
This helps to find renamed or misspelled classes earlier. Phan will check the class names Change-Id: I1d4567f47f93eb1436cb98558388e48d35258666
79 lines
2.4 KiB
PHP
79 lines
2.4 KiB
PHP
<?php
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/**
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* Display replication lag times.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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* @ingroup Maintenance
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*/
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require_once __DIR__ . '/Maintenance.php';
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use MediaWiki\MediaWikiServices;
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/**
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* Maintenance script that displays replication lag times.
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*
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* @ingroup Maintenance
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*/
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class GetLagTimes extends Maintenance {
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public function __construct() {
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parent::__construct();
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$this->addDescription( 'Dump replication lag times' );
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$this->addOption( 'report', "Report the lag values to StatsD" );
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}
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public function execute() {
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$services = MediaWikiServices::getInstance();
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$lbFactory = $services->getDBLoadBalancerFactory();
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$stats = $services->getStatsdDataFactory();
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$lbsByType = [
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'main' => $lbFactory->getAllMainLBs(),
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'external' => $lbFactory->getAllExternalLBs()
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];
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foreach ( $lbsByType as $type => $lbs ) {
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foreach ( $lbs as $cluster => $lb ) {
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if ( $lb->getServerCount() <= 1 ) {
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continue;
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}
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$lags = $lb->getLagTimes();
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foreach ( $lags as $serverIndex => $lag ) {
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$host = $lb->getServerName( $serverIndex );
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if ( IP::isValid( $host ) ) {
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$ip = $host;
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$host = gethostbyaddr( $host );
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} else {
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$ip = gethostbyname( $host );
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}
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$starLen = min( intval( $lag ), 40 );
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$stars = str_repeat( '*', $starLen );
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$this->output( sprintf( "%10s %20s %3d %s\n", $ip, $host, $lag, $stars ) );
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if ( $this->hasOption( 'report' ) ) {
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$group = ( $type === 'external' ) ? 'external' : $cluster;
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$stats->gauge( "loadbalancer.lag.$group.$host", intval( $lag * 1e3 ) );
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}
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}
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}
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}
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}
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}
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$maintClass = GetLagTimes::class;
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require_once RUN_MAINTENANCE_IF_MAIN;
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