Glad to see the change to keeping online regions in zk also. See the tail of
HBASE-1015. C/C++ client does not want to talk to the master now that we have
zk.
On a related note I looked at avro trunk and its C language binding is NOT
ready. We may have no better option than thrift depending on how long this
should wait.
- Andy
On Tue Nov 17th, 2009 3:44 PM PST stack (JIRA) wrote:
>
> [
> https://issues.apache.org/jira/browse/HBASE-1816?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12779207#action_12779207
> ]
>
>stack commented on HBASE-1816:
>------------------------------
>
>More work on design: http://wiki.apache.org/hadoop/Hbase/MasterRewrite. At
>Patrick Hunt's prompting, will have a znode per table up in zk to hold schema
>and state (rather than one znode to hold all). Also, carried forward
>Patrick's suggestion for how to keep region state. It involves a flip on
>previous notion where online regions were in .META. somehow and zk just
>managed unassigned to open. Instead, .META. lists all regions. zk holds
>moving regions from unassigned -- i.e. mentioned in .META. but not in zk --
>through to online (online is a state in zk).
>
>> Master rewrite
>> --------------
>>
>> Key: HBASE-1816
>> URL: https://issues.apache.org/jira/browse/HBASE-1816
>> Project: Hadoop HBase
>> Issue Type: Task
>> Components: master
>> Reporter: stack
>> Assignee: stack
>> Priority: Blocker
>> Fix For: 0.21.0
>>
>> Attachments: HBase Hackathon Notes - Sunday.pdf, master-v2.patch,
>> master-v3.patch, master-v4.patch, master.patch, meta-cleanup.patch
>>
>>
>> An umbrella issue for master rewrite. Master rewrite is a new feature for
>> 0.21 hbase. I'm attaching "Master Rewrite" notes taken at the SU SF hbase
>> meetup made by JGray.
>
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