Github user anmolnar commented on the issue: https://github.com/apache/zookeeper/pull/415 @phunt I asked around quickly: HBase - own library (looks like they've started to use dropwizard somehow) HDFS - Hadoop Metrics2 (included in hadoop-common) Kafka - Yammer (dropwizard predecessor) Cassandra - Yammer I'll give dropwizard a try first.
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