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https://issues.apache.org/jira/browse/ACCUMULO-927?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13543564#comment-13543564
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Dave Marion commented on ACCUMULO-927:
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But your v1.0 class would still be loaded in the VM. I don't think there is a
guarantee as to when classes get unloaded from the VM assuming that you have
enabled those options. Your scenario would only work if the class was in a
different package.
You could however deploy the jar to a new location and set the table context
to the new location.
Sent from my Motorola ATRIX™ 4G on AT&T
-----Original message-----
From: "Josh Elser (JIRA)" <[email protected]>
To: [email protected]
Sent: Fri, Jan 4, 2013 02:54:12 GMT+00:00
Subject: [jira] [Commented] (ACCUMULO-927) Replace HDFS VFS FileSystem objects
with the ones from Commons VFS
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https://issues.apache.org/jira/browse/ACCUMULO-927?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13543557#comment-13543557
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Josh Elser commented on ACCUMULO-927:
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What about a case in which I have my-code-1.0.jar deployed. I then find a
problem in my code, cut a new version and deploy my-code-1.1.jar. Say in
version 1.1, I have a class in which I added a new method that did not exist in
1.0. Wouldn't I have undefined behavior (my class in 1.0 or 1.1 could be used
by Accumulo) if the 1.0 classes aren't removed completely?
bq. I don't think it will be common that folks delete jars from HDFS without
restarting Accumulo as the classes that are loaded from that jar will still be
resident in the VM.
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> Replace HDFS VFS FileSystem objects with the ones from Commons VFS
> ------------------------------------------------------------------
>
> Key: ACCUMULO-927
> URL: https://issues.apache.org/jira/browse/ACCUMULO-927
> Project: Accumulo
> Issue Type: Sub-task
> Components: start
> Reporter: Dave Marion
> Assignee: Dave Marion
> Fix For: 1.5.0
>
> Attachments: ACCUMULO-927-1.patch
>
>
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