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https://issues.apache.org/jira/browse/HBASE-5487?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13245545#comment-13245545
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Keith Turner commented on HBASE-5487:
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I am an Accumulo developer. CompactRange is our operation to force a range of
tablets(regions) to major compact all of their files into one file. The
TableRangeOp will merge a range of tablets into one tablet. TableRangeOp can
also delete a range of row from a table efficiently. It inserts splits points
at the rows you want to delete, drops the tablets, and then merges whats left.
> 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
> Labels: noob
>
> 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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