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From "Davanum Srinivas (JIRA)" <j...@apache.org>
Subject [jira] Updated: (AXIS2-2985) Updates to http-transport.html
Date Wed, 18 Jul 2007 20:34:04 GMT

     [ https://issues.apache.org/jira/browse/AXIS2-2985?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Davanum Srinivas updated AXIS2-2985:
------------------------------------

    Assignee: Chatra Nakkawita

> Updates to http-transport.html
> ------------------------------
>
>                 Key: AXIS2-2985
>                 URL: https://issues.apache.org/jira/browse/AXIS2-2985
>             Project: Axis 2.0 (Axis2)
>          Issue Type: Bug
>          Components: documentation
>            Reporter: Davanum Srinivas
>            Assignee: Chatra Nakkawita
>             Fix For: 1.3
>
>
> Hi,
> As far as I could find, the following page documents the http
> transport in axis2/java:
> http://ws.apache.org/axis2/1_2/http-transport.html
> In my opinion, there are a lot of missing information in this page.
> Please find suggestions of additions in the following of this message.
> [ https ]
> Documentation says:
> ----------8<-----------------8<-----------------8<-----------------8<-------
> Please note that HTTPS works only when the server does not expect to
> authenticate the clients and where the server has the clients' public
> keys in its trust store.
> ----------8<-----------------8<-----------------8<-----------------8<-------
> This is not correct, I'm using SSL client authentication with axis2 :)
> You can change the documentation to:
> ----------8<-----------------8<-----------------8<-----------------8<-------
> Please note that by default HTTPS works only when the server does not
> expect to authenticate the clients (1-way SSL only) and where the
> server has the clients' public keys in its trust store.
> If you want to perform SSL client authentication (2-way SSL), you may
> use the Protocol.registerProtocol feature of HttpClient. You can
> overwrite the "https" protocol, or use a different protocol for your
> SSL client authentication communications if you don't want to mess
> with regular https. Find more information at
> http://jakarta.apache.org/commons/httpclient/sslguide.html
> ----------8<-----------------8<-----------------8<-----------------8<-------
> [ chunking ]
> It's sometimes more convenient to disable the chunking
> programmatically rather that in the XML configuration. For example,
> before the text "Some absolute properties are provided at runtime",
> you could add:
> ----------8<-----------------8<-----------------8<-----------------8<-------
> If you use HTTP1.1 for its Keep-Alive ability, but you need to disable
> chunking at runtime (some servers don't allow chunked requests to
> prevent denial of service), you can do so in the Stub:
> <pre>
> options.setProperty(HTTPConstants.CHUNKED, "false");
> </pre>
> ----------8<-----------------8<-----------------8<-----------------8<-------
> [ reusing httpclient ]
> It can dramatically improve performance, I think it should be
> documented. Proposal:
> ----------8<-----------------8<-----------------8<-----------------8<-------
> Reusing the httpclient object
> By default, a new httpclient object is created for each send. It may
> be worthwhile to reuse the same httpclient object to take advantage of
> HTTP1.1 Keep-Alive, especially in HTTPS environment, where the SSL
> handshake may not be of negligible cost. To reuse the same httpclient
> object, you can set the relevant property in the Stub:
> <pre>
> options.setProperty(HTTPConstants.REUSE_HTTP_CLIENT, "true");
> </pre>
> ----------8<-----------------8<-----------------8<-----------------8<-------
> [ setting the cached httpclient ]
> The default max connections per host of httpclient is 2. For a reused
> httpclient, that may be too small; for raising that figure, you need
> to set the cached httpclient object which is not documented AFAIK.
> Proposal:
> ----------8<-----------------8<-----------------8<-----------------8<-------
> Setting the cached httpclient object
> To control the max connections per host attempted in parallel by a
> reused httpclient (this can be worthwhile as the default value is 2
> connections per host), or any other advanced parameters, you need to
> set the cached httpclient object when your application starts up
> (before any actual axis request). You can set the relevant property in
> the Stub:
> <pre>
> MultiThreadedHttpConnectionManager conmgr = new
> MultiThreadedHttpConnectionManager();
> conmgr.getParams().setDefaultMaxConnectionsPerHost(10);
> HttpClient client = new HttpClient(conmgr);
> configurationContext.setProperty(HTTPConstants.CACHED_HTTP_CLIENT, client);
> </pre>
> ----------8<-----------------8<-----------------8<-----------------8<-------
> Hope you can make use of these additions.
> --
> Guillaume Cottenceau - http://zarb.org/~gc/

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