logstash is splitting Messages at line separators

[JonathanHuthmann]

For example this log:

Some problem occurred! at org.mypackage... at abc.def....

logstash will break this log into three messages, each containing one line of the original log. By doing so, stacktraces are almost impossible to read.

[denkv]

Possible solution: https://stackoverflow.com/a/34659306 https://www.elastic.co/guide/en/logstash/2.4/plugins-filters-multiline.html (with stream_identity setting)