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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-6282) Excluding io.dropwizard.metrics dependencies
Date Tue, 27 Mar 2018 03:19:00 GMT

    [ https://issues.apache.org/jira/browse/DRILL-6282?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16414959#comment-16414959

ASF GitHub Bot commented on DRILL-6282:

Github user vrozov commented on the issue:

    Why not make Drill to use `io.dropwizard.metrics` instead of `com.codahale.metrics`? As
far as I can see it is the same library (this is why it causes the conflict).

> Excluding io.dropwizard.metrics dependencies
> --------------------------------------------
>                 Key: DRILL-6282
>                 URL: https://issues.apache.org/jira/browse/DRILL-6282
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Tools, Build &amp; Test
>    Affects Versions: 1.13.0
>            Reporter: Vitalii Diravka
>            Assignee: Vitalii Diravka
>            Priority: Major
>             Fix For: 1.14.0
> There are three types of metrics-core in Drill: 
> 1. _com.yammer.metrics_, 
> 2. _com.codahale.metrics_, 
> 3. _io.dropwizard.metrics_
> Drill uses only 1 and 2. The last 3 one is used by Hive.
> 1st one has different class full identifiers, but the 2 and 3 ones have the same class
full identifiers and maven doesn't know which library to use ([https://github.com/dropwizard/metrics/issues/1044]).
> But I found that 3 one library is used by Hive only for tests, therefore it is not required
for Drill and could be excluded from hive-metastore and hive-exec.
> The dependencies conflict is related not only to metrics-core, but to metrics-servlets
and metrics-json as well.
> All these metrics should be organized with proper excluding and dependency management

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