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ILoadMonitor.php
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<?php
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namespace
Wikimedia\Rdbms
;
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use Psr\Log\LoggerAwareInterface;
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use
BagOStuff
;
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use
WANObjectCache
;
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interface
ILoadMonitor
extends
LoggerAwareInterface {
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public
function
__construct
(
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ILoadBalancer
$lb,
BagOStuff
$sCache,
WANObjectCache
$wCache, array $options = []
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);
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public
function
scaleLoads
( array &$weightByServer, $domain );
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public
function
getLagTimes
( array $serverIndexes, $domain );
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}
Wikimedia\Rdbms\ILoadMonitor
An interface for database load monitoring.
Definition:
ILoadMonitor.php:35
Wikimedia\Rdbms
Definition:
ChronologyProtector.php:24
BagOStuff
Class representing a cache/ephemeral data store.
Definition:
BagOStuff.php:63
Wikimedia\Rdbms\ILoadMonitor\getLagTimes
getLagTimes(array $serverIndexes, $domain)
Get an estimate of replication lag (in seconds) for each server.
Wikimedia\Rdbms\ILoadMonitor\scaleLoads
scaleLoads(array &$weightByServer, $domain)
Perform load ratio adjustment before deciding which server to use.
Wikimedia\Rdbms\ILoadMonitor\__construct
__construct(ILoadBalancer $lb, BagOStuff $sCache, WANObjectCache $wCache, array $options=[])
Construct a new LoadMonitor with a given LoadBalancer parent.
WANObjectCache
Multi-datacenter aware caching interface.
Definition:
WANObjectCache.php:116
Wikimedia\Rdbms\ILoadBalancer
Database cluster connection, tracking, load balancing, and transaction manager interface.
Definition:
ILoadBalancer.php:81
includes
libs
rdbms
loadmonitor
ILoadMonitor.php
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