[
https://issues.apache.org/jira/browse/HBASE-3833?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13028993#comment-13028993
]
Vishal Kathuria commented on HBASE-3833:
----------------------------------------
stack: A quick question. I looked at region_mover.rb and I was wondering why
this was implemented in ruby as a script and not in the master. Since I do the
parsing of the decom file in the master, I would need to call out from master
to the ruby script, which doesn't sound like such a good idea. Secondly, if we
improve the load balancing policy from just random to something like load
based, the ruby script would not be able to take advantage of it since random
is hard coded in it.
Here is what I think we should ideally do:
1. Refactor the code in AssignmentManager/ServerShutdown handler to expose a
function that takes all the regions off a node.
2. Use the above function for decommissioning, failure handling and the unload
admin commands so we get similar behavior and single implementation across the
three.
What do you guys think?
dhruba:
Agreed: I will leave the configs as is for this jira. I assume the config files
need to live on some NFS share so they are available when the master fails over
- is that so?
Thanks
> ability to support includes/excludes list in Hbase
> --------------------------------------------------
>
> Key: HBASE-3833
> URL: https://issues.apache.org/jira/browse/HBASE-3833
> Project: HBase
> Issue Type: Improvement
> Components: client, regionserver
> Affects Versions: 0.90.2
> Reporter: dhruba borthakur
> Assignee: dhruba borthakur
> Attachments: excl-patch.txt
>
>
> An HBase cluster currently does not have the ability to specify that the
> master should accept regionservers only from a specified list. This helps
> preventing administrative errors where the same machine could be included in
> two clusters. It also allows the administrator to easily remove un-ssh-able
> machines from the cluster.
--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira
