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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15812) HttpServer fails to come up against hadoop trunk
Date Thu, 12 May 2016 00:28:12 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15812?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15281051#comment-15281051
] 

Ted Yu commented on HBASE-15812:
--------------------------------

In master branch, 'Metrics Dump' is also hooked up to /jmx:

hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/master/MasterStatusTmpl.jamon:  
             <li><a href="/jmx">Metrics Dump</a></li>

I think we can drop '/metrics'

> HttpServer fails to come up against hadoop trunk
> ------------------------------------------------
>
>                 Key: HBASE-15812
>                 URL: https://issues.apache.org/jira/browse/HBASE-15812
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 1.0.1
>            Reporter: Sangjin Lee
>            Assignee: Ted Yu
>             Fix For: 2.0.0
>
>         Attachments: 15812.v1.txt, 15812.v1.txt
>
>
> If you run HBase HttpServer against the hadoop trunk, it fails.
> {noformat}
> Caused by: java.lang.NoClassDefFoundError: org/apache/hadoop/metrics/MetricsServlet
>         at org.apache.hadoop.hbase.http.HttpServer.addDefaultServlets(HttpServer.java:677)
>         at org.apache.hadoop.hbase.http.HttpServer.initializeWebServer(HttpServer.java:546)
>         at org.apache.hadoop.hbase.http.HttpServer.<init>(HttpServer.java:500)
>         at org.apache.hadoop.hbase.http.HttpServer.<init>(HttpServer.java:104)
>         at org.apache.hadoop.hbase.http.HttpServer$Builder.build(HttpServer.java:345)
>         at org.apache.hadoop.hbase.http.InfoServer.<init>(InfoServer.java:77)
>         at org.apache.hadoop.hbase.regionserver.HRegionServer.putUpWebUI(HRegionServer.java:1697)
>         at org.apache.hadoop.hbase.regionserver.HRegionServer.<init>(HRegionServer.java:550)
>         at org.apache.hadoop.hbase.master.HMaster.<init>(HMaster.java:333)
>         at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
>         at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
>         at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
>         at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
>         at org.apache.hadoop.hbase.util.JVMClusterUtil.createMasterThread(JVMClusterUtil.java:139)
>         ... 26 more
> {noformat}
> The hadoop trunk removed {{MetricsServlet}} (HADOOP-12504).



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