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From "Larry Edelstein (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (IVY-1327) Hangs when downloading from Jenkins
Date Mon, 02 Jan 2012 19:20:30 GMT
Hangs when downloading from Jenkins
-----------------------------------

                 Key: IVY-1327
                 URL: https://issues.apache.org/jira/browse/IVY-1327
             Project: Ivy
          Issue Type: Bug
          Components: Core
    Affects Versions: 2.2.0
         Environment: OSX 10.6.8, Ubuntu 10.10
            Reporter: Larry Edelstein


Ivy fails to download a dependency from Jenkins.

I've got a Jenkins server on Ubuntu 10.10 and a component build job, and I've got another
project, using Ivy, that depends on that component. That second project's ivysettings.xml
references the Jenkins server as a URL resolver, like http://my.jenkins.server:8080/job/[module]/lastStableBuild/artifact/dist/[module]-[revision].zip.

What happens when I run Ant locally is that Ivy tries to download the dependency from Jenkins,
but times out. From the log (with -debug):


[ivy:retrieve] 	 trying http://perks-srv3:8080/job/perks-security/lastStableBuild/artifact/dist/perks-security-1.1-SNAPSHOT.zip
[ivy:retrieve] 		tried http://perks-srv3:8080/job/perks-security/lastStableBuild/artifact/dist/perks-security-1.1-SNAPSHOT.zip
[ivy:retrieve] downloading http://perks-srv3:8080/job/perks-security/lastStableBuild/artifact/dist/perks-security-1.1-SNAPSHOT.zip
...
[ivy:retrieve] 	snaps: downloading http://perks-srv3:8080/job/perks-security/lastStableBuild/artifact/dist/perks-security-1.1-SNAPSHOT.zip
[ivy:retrieve] 		to /Users/larry/.ivy2/cache/klout/perks-security/jars/perks-security-1.1-SNAPSHOT.jar.part
[ivy:retrieve] HTTP response status: -1 url=http://perks-srv3:8080/job/perks-security/lastStableBuild/artifact/dist/perks-security-1.1-SNAPSHOT.zip
[ivy:retrieve] WARN: 	[FAILED     ] klout#perks-security;1.1-SNAPSHOT!perks-security.jar:
The HTTP response code for http://perks-srv3:8080/job/perks-security/lastStableBuild/artifact/dist/perks-security-1.1-SNAPSHOT.zip
did not indicate a success. See log for more detail. (10976ms)
[ivy:retrieve] WARN: 	[FAILED     ] klout#perks-security;1.1-SNAPSHOT!perks-security.jar:
The HTTP response code for http://perks-srv3:8080/job/perks-security/lastStableBuild/artifact/dist/perks-security-1.1-SNAPSHOT.zip
did not indicate a success. See log for more detail. (10976ms)
[ivy:retrieve] WARN: ==== snaps: tried
[ivy:retrieve] WARN:   http://perks-srv3:8080/job/perks-security/lastStableBuild/artifact/dist/perks-security-1.1-SNAPSHOT.zip
[ivy:retrieve] :: resolution report :: resolve 83ms :: artifacts dl 10979ms

If I fetch that URL with my web browser, or with wget, it downloads just fine. And if I point
Ivy at another webserver with the file, it downloads fine. 

And there's a Heisenbug aspect to the problem. The dependent project is originally a Play
framework job, which as you may know uses Ivy for dependency resolution. When I ran "play
dependencies" in my debugger, I consistently got success when I set a breakpoint in UrlRepository.get(String,
File), and failure otherwise. Since then I've isolated the problem by creating a test project
without Play and only using Ivy; that's what I've referenced above. I haven't tried debugging
it, but I'd bet I get the same result.

My hunch is that the problem has something to do with the HEAD request Ivy makes, but that's
just a hunch. 

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