Introduction
Many users follow different tutorials found on the internet which may be outdated, or poorly written, guiding them to install Redmine as a root user or various other misconfiguration issues. Redmine version changes, underlying operating system updates, Ruby changes, Rails, gems, various required libraries, and sometimes any of just mentioned code changes can cause a Redmine installation to break. Luckily, there is an extensive list of logs that can be inspected and help administrators to resolve issues. Sometimes resolving issues is not easy due to the many variables involved in proper execution of Redmine code on the server machine.
The following image illustrates a block-scheme of logical layers, which may affect Redmine functionality in some way with the most common problems:
The recipes in this chapter are aimed at troubleshooting logs that are directly related to Redmine execution on the server machine.