Hi all, I've just started to learn Heka and it looks really great. I have one question which doesn't look clear to me yet.
How do we make dependencies/links between hosts? I need to do some calculations with different metrics (find delta, compare, etc) of both hostA and hostB at the same time. For example how do we compare number of messages passed through balancer to a sum of messages received by all backends (to route that to alert if delta is high)? Looks like we need to do that using filters and looks like I need to write one for my needs but how should I deal with that? Can Lua sandboxes exchange data or do I have to keep several buffers inside my filter implementation and route different metrics to different buffers inside Lua or is there another good practice of doing that? I'm just scratching surface now of how things work so general direction to which to look without going too much into details will be perfectly fine for me. Thanks, Timur
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