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https://issues.apache.org/jira/browse/HADOOP-17133?focusedWorklogId=570929&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-570929
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ASF GitHub Bot logged work on HADOOP-17133:
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Author: ASF GitHub Bot
Created on: 24/Mar/21 04:37
Start Date: 24/Mar/21 04:37
Worklog Time Spent: 10m
Work Description: aajisaka commented on a change in pull request #2145:
URL: https://github.com/apache/hadoop/pull/2145#discussion_r600160475
##########
File path:
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/http/HttpServer2.java
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@@ -669,6 +674,16 @@ private void initializeWebServer(String name, String
hostName,
addDefaultApps(contexts, appDir, conf);
webServer.setHandler(handlers);
+ // Jetty StatisticsHandler should be the first handler.
+ // The handler returns 503 if there is no next handler and the response is
+ // not committed. In Apache Hadoop, there are some servlets that do not
+ // commit (i.e. close) the response. Therefore the handler fails.
Review comment:
I think it is possible. I'll create a unit test to reproduce the
scenario.
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Issue Time Tracking
-------------------
Worklog Id: (was: 570929)
Time Spent: 0.5h (was: 20m)
> Implement HttpServer2 metrics
> -----------------------------
>
> Key: HADOOP-17133
> URL: https://issues.apache.org/jira/browse/HADOOP-17133
> Project: Hadoop Common
> Issue Type: Improvement
> Components: httpfs, kms
> Reporter: Akira Ajisaka
> Assignee: Akira Ajisaka
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.4.0
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> I'd like to collect metrics (number of connections, average response time,
> etc...) from HttpFS and KMS but there are no metrics for HttpServer2.
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