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Accumulo >> mail # dev >> VFS class reloading?


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Re: VFS class reloading?

Updated my local 1.5 branch and tried to build with "mvn clean package -P assemble -Dhadoop.version=0.20.205.0". I'm running CDH3 Update 3 locally, so that should work. A bunch of tests failed in core with:

Caused by: java.lang.ClassNotFoundException: org.codehaus.jackson.map.JsonMappingException
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
Has anyone else seen this?

-- Dave

----- Original Message -----
From: "Eric Newton" <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Sent: Tuesday, April 16, 2013 7:52:09 PM
Subject: Re: VFS class reloading?

We have tests for dynamic loading of classes so I'm pretty sure it works.

John, can you repeat the failure?

-Eric

On Tue, Apr 16, 2013 at 6:50 PM, Dave Marion <[EMAIL PROTECTED]> wrote:

> Looking at the code, it should work. Keith and I had several conversations
> about what the new classloader should do. I believe that he wanted it to
> behave like the old one and what I see in the code supports that. If it is
> not working, then I would say create a ticket for it for now. I'll try to
> replicate it tonight if I have time.
>
> -----Original Message-----
> From: Dave Marion [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, April 16, 2013 6:41 PM
> To: [EMAIL PROTECTED]
> Subject: RE: VFS class reloading?
>
> The implementation changed several times, so the pre-1.5 layout may not
> work. In 1.5, using the bootstrap script, it should put the accumulo jars
> into HDFS and dynamic loading from there should occur. I'll try and test
> tonight if I have time.
>
> -----Original Message-----
> From: John Vines [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, April 16, 2013 6:30 PM
> To: Accumulo Dev List
> Subject: VFS class reloading?
>
> Maybe I missed something with the switch to the VFS classloader, but does
> dynamic loading out of lib/ext no longer work? I had accumulo 1.5 running,
> threw an iterator in there, but had to restart tserver to get the new
> iterator picked up. Was that an intentional change?
>
>