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https://issues.apache.org/jira/browse/HADOOP-15638?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wei-Chiu Chuang updated HADOOP-15638:
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Target Version/s: 3.2.0, 3.1.1, 3.0.4
Status: Patch Available (was: In Progress)
Submit a simple patch to restore the value.
> KMS Accept Queue Size default changed from 500 to 128 in Hadoop 3.x
> -------------------------------------------------------------------
>
> Key: HADOOP-15638
> URL: https://issues.apache.org/jira/browse/HADOOP-15638
> Project: Hadoop Common
> Issue Type: Bug
> Components: kms
> Affects Versions: 3.0.0-alpha2
> Reporter: Wei-Chiu Chuang
> Assignee: Wei-Chiu Chuang
> Priority: Major
> Attachments: HADOOP-15638.001.patch
>
>
> HADOOP-13597 migrated KMS from Tomcat to Jetty.
> In Hadoop 2.x, the Accept Queue Size default value was set by environment
> variable KMS_ACCEPT_QUEUE with default value 500.
> But after the migration, Hadoop 3.x now uses the default HttpServer2
> configuration to set accept queue size (hadoop.http.socket.backlog.size),
> which is 128.
> Should we restore the default accept queue size in kms-default.xml? Should we
> document it as a known issue? After all, Hadoop 2 --> 3 allows breaking
> changing.
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