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https://issues.apache.org/jira/browse/HBASE-5487?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13799905#comment-13799905
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Jonathan Hsieh commented on HBASE-5487:
---------------------------------------
[[email protected]] acked.
Let's post design docs here, and move discussions comparing them to the mailing
list.
[~sershe] Let's name threads prefixed with [hbase-5487] in subject, and maybe
rename subject lines if we get into a more focused discussion that warrants it
own thread (it one part gets long), and in general reply inline. (I found this
interesting http://en.wikipedia.org/wiki/Posting_style).
I'll start by copying and pasting unresolved parts of the response-reply above
to the dev mailing list.
> Generic framework for Master-coordinated tasks
> ----------------------------------------------
>
> Key: HBASE-5487
> URL: https://issues.apache.org/jira/browse/HBASE-5487
> Project: HBase
> Issue Type: New Feature
> Components: master, regionserver, Zookeeper
> Affects Versions: 0.94.0
> Reporter: Mubarak Seyed
> Assignee: Sergey Shelukhin
> Priority: Critical
> Attachments: Entity management in Master - part 1.pdf,
> hbckMasterV2b-long.pdf, hbckMasterV2-long.pdf, Is the FATE of Assignment
> Manager FATE.pdf, Region management in Master5.docx, Region management in
> Master.pdf
>
>
> Need a framework to execute master-coordinated tasks in a fault-tolerant
> manner.
> Master-coordinated tasks such as online-scheme change and delete-range
> (deleting region(s) based on start/end key) can make use of this framework.
> The advantages of framework are
> 1. Eliminate repeated code in Master, ZooKeeper tracker and Region-server for
> master-coordinated tasks
> 2. Ability to abstract the common functions across Master -> ZK and RS -> ZK
> 3. Easy to plugin new master-coordinated tasks without adding code to core
> components
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