[
https://issues.apache.org/jira/browse/WHIRR-199?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12984899#action_12984899
]
Tom White commented on WHIRR-199:
---------------------------------
This will work, but it means that core has knowledge of Hadoop and ZooKeeper
names. Another way would be to have trivial subclasses of the
ClusterActionHandlers which override getRole(). Perhaps this isn't a problem
though, because it's a one off, deprecated and we will remove it in the future.
Thoughts?
> Add aliases for short role names like nn, jt, tt, dn, zk
> ---------------------------------------------------------
>
> Key: WHIRR-199
> URL: https://issues.apache.org/jira/browse/WHIRR-199
> Project: Whirr
> Issue Type: Improvement
> Components: service/hadoop, service/zookeeper
> Reporter: Andrei Savu
> Priority: Minor
> Attachments: WHIRR-199.patch
>
>
> Whirr support the following instance roles: dn, jt, nn, tt, zk,
> hbase-avroserver, hbase-master, hbase-regionserver, hbase-restserver,
> hbase-thriftserver and as you can see the naming is inconsistent and
> sometimes it's hard to guess the meaning.
> Tom White replied on the email list:
> "The shorter names (nn, zk, etc) predate Whirr to when the roles were a part
> of the group name and had to be kept short to conform to various
> length restrictions. We do things differently now that we have multi-cloud
> support, so keeping them short is less important, and indeed with a global
> namespace (since service name is optional) there is even more reason to make
> them distinctive and unique. So I would suggest the longer, hyphenated form
> that we adopted for HBase, like hbase-regionserver; so the pattern is
> <service-name>-<daemon>.
> There's not much harm in keeping the shorter forms around, but we could
> introduce aliases like hadoop-namenode, zookeeper, etc and
> deprecate the short ones."
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
