MediaWiki REL1_33
ILoadMonitor.php
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1<?php
24namespace Wikimedia\Rdbms;
25
26use Psr\Log\LoggerAwareInterface;
27use BagOStuff;
28use WANObjectCache;
29
35interface ILoadMonitor extends LoggerAwareInterface {
44 public function __construct(
45 ILoadBalancer $lb, BagOStuff $sCache, WANObjectCache $wCache, array $options = []
46 );
47
54 public function scaleLoads( array &$weightByServer, $domain );
55
65 public function getLagTimes( array $serverIndexes, $domain );
66}
and
and that you know you can do these things To protect your we need to make restrictions that forbid anyone to deny you these rights or to ask you to surrender the rights These restrictions translate to certain responsibilities for you if you distribute copies of the or if you modify it For if you distribute copies of such a whether gratis or for a you must give the recipients all the rights that you have You must make sure that receive or can get the source code And you must show them these terms so they know their rights We protect your rights with two and(2) offer you this license which gives you legal permission to copy
BagOStuff
Class representing a cache/ephemeral data store.
Definition BagOStuff.php:58
WANObjectCache
Multi-datacenter aware caching interface.
Definition WANObjectCache.php:116
$options
null means default in associative array with keys and values unescaped Should be merged with default with a value of false meaning to suppress the attribute in associative array with keys and values unescaped & $options
Definition hooks.txt:1999
Wikimedia\Rdbms\ILoadBalancer
Database cluster connection, tracking, load balancing, and transaction manager interface.
Definition ILoadBalancer.php:78
Wikimedia\Rdbms\ILoadMonitor
An interface for database load monitoring.
Definition ILoadMonitor.php:35
Wikimedia\Rdbms\ILoadMonitor\__construct
__construct(ILoadBalancer $lb, BagOStuff $sCache, WANObjectCache $wCache, array $options=[])
Construct a new LoadMonitor with a given LoadBalancer parent.
Wikimedia\Rdbms\ILoadMonitor\scaleLoads
scaleLoads(array &$weightByServer, $domain)
Perform load ratio adjustment before deciding which server to use.
Wikimedia\Rdbms\ILoadMonitor\getLagTimes
getLagTimes(array $serverIndexes, $domain)
Get an estimate of replication lag (in seconds) for each server.
array
The wiki should then use memcached to cache various data To use multiple just add more items to the array To increase the weight of a make its entry a array("192.168.0.1:11211", 2))