Two eyes are better than one eye
OpenStack produces tons of log files in a real production environment. It becomes harder for a Cloud operating team to analyze and parse them by extracting data in each file using a few combinations of tail, grep, and perl tools. The more hosts you build, the more logs you have to manage. Moving forward a few paces should be accompanied by a serious trace keeper. To overcome such challenges, the log environment must become centralized. A good way to accomplish this is by starting flowing logs in a dedicated rsyslog server. You may put so much data that your log server may start craving for a larger storage capacity. Furthermore, archiving the former data will not be handy when you need to extract information for ...
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