title: Multiple patterns in one log
body: <p>So I wrote now several patterns for logs which are working. The thing is now, that I have these multiple logs, with multiple patterns, in one single file. How does logstash know what kind of pattern it has to use for which line in the log? ( I am using grok for my filtering ) And if you guys would be super kind, could you give me the link to the docs, because I weren't able to find anything regarding this :/</p>