I wanted to raise this to dev@. So, updating dropwizard metrics from 3.2.x to 4.x might be important for JDK 11 support. Our tests pass as-is without this update. But we don't test some elements of this metrics support, like Ganglia integration. And I have heard reports that downstream custom usages of dropwizard 3.2.x doesn't work on JDK 11.
The bad news is that the Ganglia integration doesn't exist anymore in 4.x. And we have a whole custom module for that integration with Spark. My question is: how much do we need to keep Ganglia integration in Spark 3.x? I think it does have some users. We can keep it as is and hope it works out in JDK 11, or consider dropping this module. ---------- Forwarded message --------- From: Apache Spark QA <notificati...@github.com> Date: Wed, Oct 30, 2019 at 6:56 PM Subject: Re: [apache/spark] [SPARK-29674][CORE] Update dropwizard metrics to 4.1.x for JDK 9+ (#26332) To: apache/spark <sp...@noreply.github.com> Cc: Sean Owen <sro...@gmail.com>, Assign <ass...@noreply.github.com> *Test build #112974 has started <https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/112974/testReport>* for PR 26332 at commit aefde48 <https://github.com/apache/spark/commit/aefde48a30942f94670f634cbeab98e23749c283> . — You are receiving this because you were assigned. Reply to this email directly, view it on GitHub <https://github.com/apache/spark/pull/26332?email_source=notifications&email_token=AAGIZ6V4BAPUXWJXRTOH56LQRINLNA5CNFSM4JHB4IO2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOECWEHLA#issuecomment-548160428>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAGIZ6S24KJARB6DUU2FMEDQRINLNANCNFSM4JHB4IOQ> .
