Litespeed & Openlitespeed

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Litespeed vs Openlitespeed

There are a number of differences between Litespeed and Openlitespeed aside from one being free and the other being paid.

Litespeedstech.com Detailed Feature Comparison

There is a detailed feature comparison on litespeedtech.com

LSE vs OLS Quick Feature Comparison

What you get with Litespeed Enterprise


Litespeed ESI Explained

OpenliteSpeed and Litespeed Logging

Most logging is located within the following folder for system related logs.

  • /usr/local/lsws/logs

You'll find that the logs for websites may be located under this folder, but usually located within another directory defined by the virtual host configuration.

When looking at the system logs, you'll sometimes see an error like so

[STDERR] [UID:1006][4884] Reached max children process limit: 10, extra: 3, current: 13, busy: -1, please increase LSAPI_CHILDREN.

The UID is the linux user id, so you can tell which site is producing this error.

Tips and Tricks

Skip Query Strings

If OLS prior to 1.7.12:

Add this into your .htaccess file:

RewriteRule .* - [E=cache-key-mod:-qs:fbclid]
RewriteRule .* - [E=cache-key-mod:-qs:gclid]
RewriteRule .* - [E=cache-key-mod:-qs:utm*]
RewriteRule .* - [E=cache-key-mod:-qs:_ga]

If OLS 1.7.12 then add this:

CacheKeyModify -qs:fbclid
CacheKeyModify -qs:gclid
CacheKeyModify -qs:utm*
CacheKeyModify -qs:_ga

Do not forget to restart OLS right after.

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