[
https://issues.apache.org/jira/browse/HDFS-6940?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14110052#comment-14110052
]
Aaron T. Myers commented on HDFS-6940:
--------------------------------------
As you and I have discussed before, subclassing and overriding what are really
internal methods of NN behavior is very fragile, both from the perspective of
maintainers of the NameNode being handicapped in what changes they can make,
and from the perspective of inadvertently breaking the behavior of the
ConsensusNode (or any subclass) of the NN.
I'd be much more comfortable with this if the relevant NN hooks were some sort
of more well-defined interface that the ConsensusNode could implement, instead
of overriding select superclass methods.
> Initial refactoring to allow ConsensusNode implementation
> ---------------------------------------------------------
>
> Key: HDFS-6940
> URL: https://issues.apache.org/jira/browse/HDFS-6940
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: namenode
> Affects Versions: 3.0.0
> Reporter: Konstantin Shvachko
> Assignee: Konstantin Shvachko
> Attachments: HDFS-6940.patch
>
>
> Minor refactoring of FSNamesystem to open private methods that are needed for
> CNode implementation.
--
This message was sent by Atlassian JIRA
(v6.2#6252)
