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From dlmar...@comcast.net
Subject Re: VFS class reloading?
Date Wed, 17 Apr 2013 00:51:48 GMT
I would believe that at runtime, but during the build? 

----- Original Message -----
From: "Corey Nolet" <cnolet@texeltek.com> 
To: dev@accumulo.apache.org 
Sent: Tuesday, April 16, 2013 8:47:13 PM 
Subject: Re: VFS class reloading? 

I've run into version conflicts with Hadoop 0.20.2 CDH3 series and jackson versions < 1.9
in the past. 

On Apr 16, 2013, at 8:39 PM, dlmarion@comcast.net wrote: 

> 
> 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" <eric.newton@gmail.com> 
> To: dev@accumulo.apache.org 
> 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 <dlmarion@comcast.net> 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:dlmarion@comcast.net] 
>> Sent: Tuesday, April 16, 2013 6:41 PM 
>> To: dev@accumulo.apache.org 
>> 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:vines@apache.org] 
>> 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? 
>> 
>> 


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