Add capability to configure DNS lookup latency WARN threshold

OpenTSDB / asynchbase

A fully asynchronous, non-blocking, thread-safe, high-performance HBase client.

https://github.com/OpenTSDB/asynchbase

BSD 3-Clause "New" or "Revised" License

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Add capability to configure DNS lookup latency WARN threshold #204

Open ocadaruma opened 5 years ago

ocadaruma commented 5 years ago

Hardcoded threshold (3000000 ns) is too short for my environment. (But I don't want to ignore WARN completely) To solve this, I added a capability to configure WARN threshold,