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https://issues.apache.org/jira/browse/ACCUMULO-3923?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15326496#comment-15326496
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Dave Marion edited comment on ACCUMULO-3923 at 6/12/16 3:54 PM:
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bq. It is not clear at all what general.vfs.classpaths value is supposed to be.
A directory? A java classpath style wildcard? A regex for jars?
>From the "Running Accumulo From HDFS" section in the
>[blog|https://blogs.apache.org/accumulo/entry/the_accumulo_classloader]
{noformat}
<property>
<name>general.vfs.classpaths</name>
<value>hdfs://localhost:8020/accumulo/system-classpath</value>
<description>Configuration for a system level vfs classloader. Accumulo
jars can be configured here and loaded out of HDFS.</description>
</property>
{noformat}
You should be able to do the following:
1. Untar an accumulo distribution somewhere
2. create the configuration files (bootstrap_config.sh)
3. Make appropriate changes to accumulo-env.sh and accumulo-site.xml, to
include the property above
4. Run bootstrap_hdfs.sh, this will push most of the jars into the location
specified in the general.vfs.classpaths property
5. Do what Christopher suggested
[above|https://issues.apache.org/jira/browse/ACCUMULO-3923?focusedCommentId=15308710&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15308710]
was (Author: dlmarion):
bq. It is not clear at all what general.vfs.classpaths value is supposed to be.
A directory? A java classpath style wildcard? A regex for jars?
>From the example in the
>[blog|https://blogs.apache.org/accumulo/entry/the_accumulo_classloader]
{noformat}
<property>
<name>general.vfs.classpaths</name>
<value>hdfs://localhost:8020/accumulo/system-classpath</value>
<description>Configuration for a system level vfs classloader. Accumulo
jars can be configured here and loaded out of HDFS.</description>
</property>
{noformat}
You should be able to do the following:
1. Untar an accumulo distribution somewhere
2. create the configuration files (bootstrap_config.sh)
3. Make appropriate changes to accumulo-env.sh and accumulo-site.xml, to
include the property above
4. Run bootstrap_hdfs.sh, this will push most of the jars into the location
specified in the general.vfs.classpaths property
5. Do what Christopher suggested
[above|https://issues.apache.org/jira/browse/ACCUMULO-3923?focusedCommentId=15308710&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15308710]
> VFS ClassLoader doesnt' work with KeywordExecutable
> ---------------------------------------------------
>
> Key: ACCUMULO-3923
> URL: https://issues.apache.org/jira/browse/ACCUMULO-3923
> Project: Accumulo
> Issue Type: Bug
> Reporter: Josh Elser
> Assignee: Dave Marion
> Priority: Critical
> Fix For: 1.7.3, 1.8.0
>
>
> Trying to make the VFS classloading stuff work and it doesn't seem like
> ServiceLoader is finding any of the KeywordExecutable implementations.
> Best I can tell after looking into this, VFSClassLoader (created by
> AccumuloVFSClassLoader) has all of the jars listed as resources, but when
> ServiceLoader tries to find the META-INF/services definitions, it returns
> nothing, and thus we think the keyword must be a class name. Seems like a
> commons-vfs bug.
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