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Posted to hdfs-issues@hadoop.apache.org by "Marton Elek (Jira)" <ji...@apache.org> on 2019/10/31 12:16:00 UTC
[jira] [Comment Edited] (HDDS-2370) Remove classpath in
RunningWithHDFS.md ozone-hdfs/docker-compose as dir 'ozoneplugin' is not
exist anymore
[ https://issues.apache.org/jira/browse/HDDS-2370?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16963934#comment-16963934 ]
Marton Elek edited comment on HDDS-2370 at 10/31/19 12:15 PM:
--------------------------------------------------------------
It was an early idea to make it easier to run Ozone as part of the HDFS. Personally I don't think it's a realistic use case any more. I think It's better to separate the JVMs and run two different type of datanodes.
Last time [~anu] suggested to keep it, but I am open to remove it, especially as this path is usually un-tested.
[~anu] What do you think?
was (Author: elek):
It was an early idea to make it easier to run Ozone as part of the HDFS. Personally I don't think it's a realistic use case any more. I think It's better to separate the JVMs and run two different type of datanodes.
Last time [~anu] suggested to keep it, but I am open to remove it, especially as this path is usually un-tested.
[~anu] What do you think.
> Remove classpath in RunningWithHDFS.md ozone-hdfs/docker-compose as dir 'ozoneplugin' is not exist anymore
> ----------------------------------------------------------------------------------------------------------
>
> Key: HDDS-2370
> URL: https://issues.apache.org/jira/browse/HDDS-2370
> Project: Hadoop Distributed Data Store
> Issue Type: Task
> Components: documentation
> Reporter: luhuachao
> Priority: Major
> Labels: pull-request-available
> Attachments: HDDS-2370.1.patch
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> In RunningWithHDFS.md
> {code:java}
> export HADOOP_CLASSPATH=/opt/ozone/share/hadoop/ozoneplugin/hadoop-ozone-datanode-plugin.jar{code}
> ozone-hdfs/docker-compose.yaml
>
> {code:java}
> environment:
> HADOOP_CLASSPATH: /opt/ozone/share/hadoop/ozoneplugin/*.jar
> {code}
> when i run hddsdatanodeservice as pulgin in hdfs datanode, it comes out with the error below , there is no constructor without parameter.
>
>
> {code:java}
> 2019-10-21 21:38:56,391 ERROR datanode.DataNode (DataNode.java:startPlugins(972)) - Unable to load DataNode plugins. Specified list of plugins: org.apache.hadoop.ozone.HddsDatanodeService
> java.lang.RuntimeException: java.lang.NoSuchMethodException: org.apache.hadoop.ozone.HddsDatanodeService.<init>()
> {code}
> what i doubt is that, ozone-0.5 not support running as a plugin in hdfs datanode now ? if so,
> why donnot we remove doc RunningWithHDFS.md ?
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