Confluence may experience performance degradation and cannot read resource errors using MathJax plugin
Platform Notice: Data Center Only - This article only applies to Atlassian products on the Data Center platform.
Note that this KB was created for the Data Center version of the product. Data Center KBs for non-Data-Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Summary
Confluence performance degrades and several Cannot read resource mathjax... messages appear in the log
Environment
Confluence 7.4.4
Mathjax 2.2.3
Diagnosis
We can spot the following messages inside the Atlassian-Confluence.log files:
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ERROR [http-nio-8090-exec-17] [[Standalone].[localhost].[/].[file-server]] log Servlet.service() for servlet [file-server] threw exception
-- referer: https://confluence_base_URL/display/...... | url: /s/d41d8cd98f00b204e9800998ecf8427e-CDN/-q4o2e2/8401/008d09724398b50e93468e30a239d4f6d750af9b/1.1/_/download/resources/com.cityinthesky.plugins.mathjax:resources/extensions/TeX/color.js | traceId: 375e6b5d09920f11 | userName: XXXXXXXXX
java.lang.RuntimeException: Cannot read resource mathjax/extensions/TeX/color.js
at com.atlassian.plugin.webresource.impl.snapshot.Resource$1.writeTo(Resource.java:204)
at com.atlassian.plugin.webresource.transformer.CompileTimeTransformer$1.writeTo(CompileTimeTransformer.java:59)
at com.atlassian.plugin.webresource.impl.helpers.ResourceServingHelpers$8.writeTo(ResourceServingHelpers.java:465)Cause
Mathjax plugin is enabled. The root cause analysis is performed by the plugin vendor.
Solution
Disable the Mathjax plugin in Confluence administration → Manage apps
Get in touch with the plugin vendor to analyze this behavior with the plugin
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