[jira] [Created] (FLINK-10917) Bump up the version of codahale's metrics-core to 3.2.3 or higher
Dongwon Kim created FLINK-10917:
Summary: Bump up the version of codahale's metrics-core to 3.2.3 or higher
Issue Type: Improvement
Reporter: Dongwon Kim
I've experienced back pressure once in a while from a streaming pipeline of mine .
I strongly suspect SlidingTimeWindowReservoir from io.dropwizard.metrics:metrics-core:3.1.5.
It is known to cause long GCs  so a new implementation called SlidingTimeWindowArrayReservoir is introduced in v3.2.3.
So I suggest to bump up codahale's metrics-core to v3.2.3 or higher to use the new implementation to prevent back pressure which actually has nothing to do with Flink itself.
I just tested compatibility very simply by importing io.dropwizard.metrics:metrics-core:4.0.3 in my own project in order to shadow v3.1.5 which is introduced by flink-metrics-dropwizard.
It works without any incompatibility issues for me; there was NoSuchMethodError.
However, I'm not sure whether bumping up to 3.2.x or 4.x is okay for other users.
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