zlib deflate results in a memory leak about node-graylog2

[ronkorving]

It would be nice to make zlib optional through an option passed to the constructor. Wanna make a PR that does that?

[jasonmcaffee]

@ronkorving Unfortunately I don't have the time at the moment. It would be cool to allow for various compression types (deflate, gzip, et) as well as compression levels, similar to how docker does:
https://docs.docker.com/engine/admin/logging/overview/#/gelf-options

Our quick fix is to have docker do the transporting, and removing the graylog transport from winston.

[ronkorving]

Graylog uses the GELF format for transporting its messages. It only supports gzip (deflate is gzip just without file headers afaik), so other formats are out of the question. GELF and compression: http://docs.graylog.org/en/2.1/pages/gelf.html#compression