Manual:getLagTimes.php

MediaWiki version:

≥ 1.9

MediaWiki file: getLagTimes.php
Location:	maintenance/
Source code:	master • 1.43.0 • 1.42.4 • 1.39.11
Classes:	GetLagTimes

Details

getLagTimes.php file is a maintenance script to display replication lag times from $wgLoadBalancer .

Options/Arguments

Option	Description	Required?
--report	Report the lag values to StatsD	Optional

Usage

php maintenance/run.php getLagTimes [ --report ]

Terminal

$ php maintenance/run.php getLagTimes

10.0.0.236      db3.pmtpa.wmnet   0
10.0.0.237      db4.pmtpa.wmnet   8 ********
10.0.0.102   samuel.pmtpa.wmnet   1 *

In MediaWiki version 1.39.10 and earlier, you must invoke maintenance scripts using php maintenance/scriptName.php instead of php maintenance/run.php scriptName.

The script can be repeatedly called from the command line to create a simple 'lagtop' script that monitors a cluster's status.

# simple shell script to run getLagTimes.php every five seconds
while [true]
do
    php maintenance/run.php getLagTimes
    sleep 5
done

See also

• $wgLoadBalancer
• Lag.php
• BenchmarkPurge.php