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From "Kennard Consulting (JIRA)" <j...@apache.org>
Subject [jira] Created: (HTTPCLIENT-1048) PostMethod very slow 'out of the box' for /j_security_check
Date Thu, 27 Jan 2011 02:10:44 GMT
PostMethod very slow 'out of the box' for /j_security_check

                 Key: HTTPCLIENT-1048
                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1048
             Project: HttpComponents HttpClient
          Issue Type: Bug
    Affects Versions: 4.0.3
         Environment: Java 6, Tomcat 6, JBoss 5.1
            Reporter: Kennard Consulting

HttpClient's default settings include adding an...

Expect: 100-continue

...header to every PostMethod. This seems to interact poorly with Tomcat's (and possibly other
Java EE containers) FormAuthenticator. I tested on both Tomcat 6 and JBoss 5.1.0 (which I
believe uses a fork of Tomcat). Testing both with/without the 'Expect' header I see '/j_security_check'
login times of:

With Expect header: 2012ms
Without Expect header: 8ms

So the default is some 250x slower. This can make a dramatic difference if you are using HttpClient
to simulate logging in and retrieving information.

I include a test WAR. To deploy it:

1. Copy into /webapps
2. Edit conf/tomcat-users.xml to enable the tomcat/tomcat username/password
3. Run Tomcat
4. Hit http://localhost:8080/ExpectTest
5. Log in as tomcat/tomcat
6. Hit 'Start Test'



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