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Date: Tue, 7 Feb 2017 18:20:44 +0000 (UTC)
From: "John Zhuge (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
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Subject: [jira] [Updated] (HDFS-10860) Switch HttpFS from Tomcat to Jetty
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archived-at: Tue, 07 Feb 2017 18:20:53 -0000


     [ https://issues.apache.org/jira/browse/HDFS-10860?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

John Zhuge updated HDFS-10860:
------------------------------
    Release Note: 
<!-- markdown -->

The following environment variables are deprecated. Set the corresponding
configuration properties instead.

Environment Variable        | Configuration Property       | Configuration File
----------------------------|------------------------------|--------------------
HTTPFS_TEMP                 | hadoop.http.temp.dir         | httpfs-site.xml
HTTPFS_HTTP_PORT            | hadoop.httpfs.http.port      | httpfs-site.xml
HTTPFS_MAX_HTTP_HEADER_SIZE | hadoop.http.max.request.header.size and hadoop.http.max.response.header.size | httpfs-site.xml
HTTPFS_MAX_THREADS          | hadoop.http.max.threads      | httpfs-site.xml
HTTPFS_SSL_ENABLED          | hadoop.httpfs.ssl.enabled    | httpfs-site.xml
HTTPFS_SSL_KEYSTORE_FILE    | ssl.server.keystore.location | ssl-server.xml
HTTPFS_SSL_KEYSTORE_PASS    | ssl.server.keystore.password | ssl-server.xml

These default HTTP Services have been added.

Name               | Description
-------------------|------------------------------------
/conf              | Display configuration properties
/jmx               | Java JMX management interface
/logLevel          | Get or set log level per class
/logs              | Display log files
/stacks            | Display JVM stacks
/static/index.html | The static home page

Script httpfs.sh has been deprecated, use `hdfs httpfs` instead. The new scripts are based on the Hadoop shell scripting framework. `hadoop daemonlog` is supported. SSL configurations are read from ssl-server.xml.

> Switch HttpFS from Tomcat to Jetty
> ----------------------------------
>
>                 Key: HDFS-10860
>                 URL: https://issues.apache.org/jira/browse/HDFS-10860
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: httpfs
>    Affects Versions: 2.6.0
>            Reporter: John Zhuge
>            Assignee: John Zhuge
>            Priority: Blocker
>             Fix For: 3.0.0-alpha3
>
>         Attachments: HDFS-10860.001.patch, HDFS-10860.002.patch, HDFS-10860.003.patch, HDFS-10860.004.patch, HDFS-10860.005.patch, HDFS-10860.006.patch, HDFS-10860.007.patch, HDFS-10860.008.patch, HDFS-10860.009.patch, HDFS-10860.010.patch, HDFS-10860.011.patch
>
>
> The Tomcat 6 we are using will reach EOL at the end of 2017. While there are other good options, I would propose switching to {{Jetty 9}} for the following reasons:
> * Easier migration. Both Tomcat and Jetty are based on {{Servlet Containers}}, so we don't have to change client code that much. It would require more work to switch to {{JAX-RS}}.
> * Well established.
> * Good performance and scalability.
> Other alternatives:
> * Jersey + Grizzly
> * Tomcat 8
> Your opinions will be greatly appreciated.


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