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Showing posts from December, 2017

Ruby Blues in Openshift Origin v2 (or How I broke my app by installing new relic gem)

The day I tried to install a Ruby gem for New Relic RPM, it causes almost a day  downtime for Phusion Passenger-run Rails Application. It turns out that there are several thing that worth noting about Ruby dependency management. The First Error The error message that causes downtime is like this : Ruby (Rack) application could not be started These are the possible causes: There may be a syntax error in the application's code. Please check for such errors and fix them. A required library may not installed. Please install all libraries that this application requires. The application may not be properly configured. Please check whether all configuration files are written correctly, fix any incorrect configurations, and restart this application. A service that the application relies on (such as the database server or the Ferret search engine server) may not have been started. Please start that service. Further information about the error may have been wr