# Reducing log level for the LogViewer

**URL:** <https://forum.katalon.com/t/reducing-log-level-for-the-logviewer/10745>\
**Category:** Web Testing\
**Tags:** katalon-studio\
**Created:** [May 7, 2018, 4:05pm UTC](https://forum.katalon.com/t/reducing-log-level-for-the-logviewer/10745 "2018-05-07T16:05:24Z")\
**Posts on this page:** 1\
**Showing post:** 27

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**Author:** ![kazurayam](https://dub1.discourse-cdn.com/katalon/user_avatar/forum.katalon.com/kazurayam/32/333_2.png) [@kazurayam](https://forum.katalon.com/u/kazurayam)\
**Post date:** [June 16, 2020, 8:42pm UTC](https://forum.katalon.com/t/reducing-log-level-for-the-logviewer/10745/27 "2020-06-16T20:42:50Z")

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For those who are not aware of `com.kazurayam.ksbackyard.CustomLoggerFactory`, please refer to

> [@How can I change the message format of WebUI.comment("msg")? + logging into FILE](http://forum.katalon.com/t/how-can-i-change-the-message-format-of-webui-comment-msg-logging-into-file/17559/5):
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> I have made a demo project on Github: [https://github.com/kazurayam/ChangingMessageFormatOfWebUIcomment](https://github.com/kazurayam/ChangingMessageFormatOfWebUIcomment) Solution Manually editting logback.xml file is not a good idea. I should modify logback LoggerFactory object runtime. I should be able to do it using Groovy’s metaprogramming feature. Description I made a custom keyword [com.kazurayam.ksbackyard.CustomLoggerFactory](https://github.com/kazurayam/ChangingMessageFormatOfWebUIcomment/blob/master/Keywords/com/kazurayam/ksbackyard/CustomLoggerFactory.groovy). I would not explain this code much. It performs a surgery for LogBack LoggerFactory object using Groovy’s ExpandoMetaClass. I …

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