Code Coverage |
||||||||||
Lines |
Functions and Methods |
Classes and Traits |
||||||||
Total | |
81.25% |
26 / 32 |
|
50.00% |
1 / 2 |
CRAP | |
0.00% |
0 / 1 |
GetLagTimes | |
89.66% |
26 / 29 |
|
50.00% |
1 / 2 |
10.11 | |
0.00% |
0 / 1 |
__construct | |
100.00% |
3 / 3 |
|
100.00% |
1 / 1 |
1 | |||
execute | |
88.46% |
23 / 26 |
|
0.00% |
0 / 1 |
9.12 |
1 | <?php |
2 | /** |
3 | * Display replication lag times. |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify |
6 | * it under the terms of the GNU General Public License as published by |
7 | * the Free Software Foundation; either version 2 of the License, or |
8 | * (at your option) any later version. |
9 | * |
10 | * This program is distributed in the hope that it will be useful, |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | * GNU General Public License for more details. |
14 | * |
15 | * You should have received a copy of the GNU General Public License along |
16 | * with this program; if not, write to the Free Software Foundation, Inc., |
17 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
18 | * http://www.gnu.org/copyleft/gpl.html |
19 | * |
20 | * @file |
21 | * @ingroup Maintenance |
22 | */ |
23 | |
24 | require_once __DIR__ . '/Maintenance.php'; |
25 | |
26 | use Wikimedia\IPUtils; |
27 | |
28 | /** |
29 | * Maintenance script that displays replication lag times. |
30 | * |
31 | * @ingroup Maintenance |
32 | */ |
33 | class GetLagTimes extends Maintenance { |
34 | public function __construct() { |
35 | parent::__construct(); |
36 | $this->addDescription( 'Dump replication lag times' ); |
37 | $this->addOption( 'report', "Report the lag values to StatsD" ); |
38 | } |
39 | |
40 | public function execute() { |
41 | $services = $this->getServiceContainer(); |
42 | $lbFactory = $services->getDBLoadBalancerFactory(); |
43 | $stats = $services->getStatsdDataFactory(); |
44 | $lbsByType = [ |
45 | 'main' => $lbFactory->getAllMainLBs(), |
46 | 'external' => $lbFactory->getAllExternalLBs() |
47 | ]; |
48 | |
49 | foreach ( $lbsByType as $type => $lbs ) { |
50 | foreach ( $lbs as $cluster => $lb ) { |
51 | if ( $lb->getServerCount() <= 1 ) { |
52 | continue; |
53 | } |
54 | $lags = $lb->getLagTimes(); |
55 | foreach ( $lags as $serverIndex => $lag ) { |
56 | $host = $lb->getServerName( $serverIndex ); |
57 | if ( IPUtils::isValid( $host ) ) { |
58 | $ip = $host; |
59 | $host = gethostbyaddr( $host ); |
60 | } else { |
61 | $ip = gethostbyname( $host ); |
62 | } |
63 | |
64 | if ( $lag === false ) { |
65 | $stars = 'replication stopped or errored'; |
66 | } else { |
67 | $starLen = min( intval( $lag ), 40 ); |
68 | $stars = str_repeat( '*', $starLen ); |
69 | } |
70 | $this->output( sprintf( "%10s %20s %3d %s\n", $ip, $host, $lag, $stars ) ); |
71 | |
72 | if ( $this->hasOption( 'report' ) ) { |
73 | $group = ( $type === 'external' ) ? 'external' : $cluster; |
74 | $stats->gauge( "loadbalancer.lag.$group.$host", (int)( $lag * 1e3 ) ); |
75 | } |
76 | } |
77 | } |
78 | } |
79 | } |
80 | } |
81 | |
82 | $maintClass = GetLagTimes::class; |
83 | require_once RUN_MAINTENANCE_IF_MAIN; |