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Andrew Purtell commented on HBASE-5487: --------------------------------------- bq. Any chance you could describe in more detail what you have in mind? Coprocessor "applications" that are running a MasterObserver or MasterEndpoint are very likely going to want to take advantage of a generic framework for master-coordinated tasks, so whatever API there is for this, should be available via MasterServices I'd say. > 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: Nick Dimiduk > > 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 -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira