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From "Suresh Srinivas (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-9244) Upgrade servlet-api dependency from version 2.5 to 3.0.
Date Fri, 01 Feb 2013 19:36:13 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-9244?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13569003#comment-13569003

Suresh Srinivas commented on HADOOP-9244:

bq. Looks like the consensus is not to upgrade the jetty in branch-2. So, shall we move forward
with Jetty8 and servlet3 in the trunk?

Does any one know performance comparison of Jetty 8 with that of Jetty 6? During WebHDFS work,
performance analysis indicated poor performance/latency in http layers (did not spend too
much confirming the same). I was interested in seeing if later versions of Jetty would result
in better performance. Given that Jetty is becoming critical not only for REST APIs, but also
for data paths, understanding the performance gains/losses would be great.
> Upgrade servlet-api dependency from version 2.5 to 3.0.
> -------------------------------------------------------
>                 Key: HADOOP-9244
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9244
>             Project: Hadoop Common
>          Issue Type: Improvement
>    Affects Versions: 2.0.3-alpha
>            Reporter: Plamen Jeliazkov
>            Assignee: Plamen Jeliazkov
>            Priority: Minor
>             Fix For: 3.0.0
>         Attachments: HDFS-4422.patch
> Please update the servlet-api jar from 2.5 to javax.servlet 3.0 via Maven:
> <dependency>
>         <groupId>javax.servlet</groupId>
>         <artifactId>javax.servlet-api</artifactId>
>         <version>3.0.1</version>
>         <scope>provided</scope>
> </dependency>
> I am running a 2.0.3 dev-cluster and can confirm compatibility. I have removed the servlet-api-2.5.jar
file and replaced it with javax.servlet-3.0.jar file. I am using javax.servlet-3.0 because
it implements methods that I use for a filter, namely the HttpServletResponse.getStatus()
> I believe it is a gain to have this dependency as it allows more functionality and has
so far proven to be backwards compatible.

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