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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Work logged] (HDDS-919) Enable prometheus endpoints for Ozone datanodes
Date Thu, 28 Feb 2019 21:21:00 GMT

     [ https://issues.apache.org/jira/browse/HDDS-919?focusedWorklogId=206064&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-206064
]

ASF GitHub Bot logged work on HDDS-919:
---------------------------------------

                Author: ASF GitHub Bot
            Created on: 28/Feb/19 21:20
            Start Date: 28/Feb/19 21:20
    Worklog Time Spent: 10m 
      Work Description: bharatviswa504 commented on issue #502: HDDS-919. Enable prometheus
endpoints for Ozone datanodes
URL: https://github.com/apache/hadoop/pull/502#issuecomment-468442678
 
 
   Hi @elek 
   When I am planning to commit, just seen test failures.
   And also, in MiniOzoneClusterImpl, in configureHddsDatanodes() we need to set this port
address to 0. As when multiple dn's start on the localhost, start of httpserver will fail.
   
   I think this patch needs some more work, see below error.
   
   
   
   ```
   2019-02-28 20:08:24,593 INFO  hdfs.DFSUtil (DFSUtil.java:httpServerTemplateForNNAndJN(1641))
- Starting Web-server for hddsDatanode at: http://0.0.0.0:9882
   2019-02-28 20:08:24,594 ERROR ozone.HddsDatanodeService (HddsDatanodeService.java:start(189))
- HttpServer failed to start.
   java.io.FileNotFoundException: webapps/hddsDatanode not found in CLASSPATH
   	at org.apache.hadoop.http.HttpServer2.getWebAppsPath(HttpServer2.java:1070)
   	at org.apache.hadoop.http.HttpServer2.<init>(HttpServer2.java:536)
   	at org.apache.hadoop.http.HttpServer2.<init>(HttpServer2.java:119)
   	at org.apache.hadoop.http.HttpServer2$Builder.build(HttpServer2.java:433)
   	at org.apache.hadoop.hdds.server.BaseHttpServer.<init>(BaseHttpServer.java:90)
   	at org.apache.hadoop.ozone.HddsDatanodeHttpServer.<init>(HddsDatanodeHttpServer.java:34)
   	at org.apache.hadoop.ozone.HddsDatanodeService.start(HddsDatanodeService.java:186)
   	at org.apache.hadoop.ozone.MiniOzoneClusterImpl.lambda$startHddsDatanodes$2(MiniOzoneClusterImpl.java:367)
   	at java.util.ArrayList.forEach(ArrayList.java:1257)
   	at org.apache.hadoop.ozone.MiniOzoneClusterImpl.startHddsDatanodes(MiniOzoneClusterImpl.java:367)
   	at org.apache.hadoop.ozone.om.TestScmChillMode.init(TestScmChillMode.java:99)
   	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
   	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   	at java.lang.reflect.Method.invoke(Method.java:498)
   	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
   	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
   	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
   	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:24)
   	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
   	at org.junit.internal.runners.statements.FailOnTimeout$StatementThread.run(FailOnTimeout.java:74)
   ```
 
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Issue Time Tracking
-------------------

    Worklog Id:     (was: 206064)
    Time Spent: 3.5h  (was: 3h 20m)

> Enable prometheus endpoints for Ozone datanodes
> -----------------------------------------------
>
>                 Key: HDDS-919
>                 URL: https://issues.apache.org/jira/browse/HDDS-919
>             Project: Hadoop Distributed Data Store
>          Issue Type: Bug
>            Reporter: Elek, Marton
>            Assignee: Elek, Marton
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 3.5h
>  Remaining Estimate: 0h
>
> HDDS-846 provides a new metric endpoint which publishes the available Hadoop metrics
in prometheus friendly format with a new servlet.
> Unfortunately it's enabled only on the scm/om side. It would be great to enable it in
the Ozone/HDDS datanodes on the web server of the HDDS Rest endpoint. 



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