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From "John Zhuge (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-14347) Make KMS and HttpFS Jetty connection backlog configurable
Date Sun, 23 Apr 2017 03:37:04 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-14347?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

John Zhuge updated HADOOP-14347:
    Attachment: HADOOP-14347.001.patch

Patch 001
* HttpServer2 reads a new property {{hadoop.http.accept.queue.size}} and sets the connection
backlog. The property default is 128 which is the current hard-coded value.

Since the change is in the common HttpServer2 code, both KMS and HttpFS get the feature.

> Make KMS and HttpFS Jetty connection backlog configurable
> ---------------------------------------------------------
>                 Key: HADOOP-14347
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14347
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: kms
>    Affects Versions: 3.0.0-alpha2
>            Reporter: John Zhuge
>            Assignee: John Zhuge
>         Attachments: HADOOP-14347.001.patch
> HADOOP-14003 enabled the customization of Tomcat attribute {{protocol}}, {{acceptCount}},
and {{acceptorThreadCount}} for KMS in branch-2. See https://tomcat.apache.org/tomcat-6.0-doc/config/http.html.
> KMS switched from Tomcat to Jetty in trunk. Only {{acceptCount}} has a counterpart in
Jetty, {{acceptQueueSize}}. See http://www.eclipse.org/jetty/documentation/9.3.x/configuring-connectors.html.

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