Werk #13384: Fix 'Request-URI Too Long' error on rule search

Component

Setup

Title

Fix 'Request-URI Too Long' error on rule search

Date

Nov 4, 2021

Level

Trivial Change

Class

Bug Fix

Compatibility

Compatible - no manual interaction needed

Checkmk versions & editions

2.1.0b1	Checkmk Community, Checkmk Pro, Checkmk Ultimate MT
2.0.0p16	Checkmk Community, Checkmk Pro, Checkmk Ultimate MT

The rule search could produce a 'Request-URI Too Long' exception because all variables of the search form were submitted.

This problem could occur, for example, in installations with a large number of host tags.

We now filter out all unused variables to avoid exceeding the server capacity.