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https://issues.apache.org/jira/browse/HDDS-2196?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Anu Engineer updated HDDS-2196:
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Fix Version/s: 0.5.0
Resolution: Fixed
Status: Resolved (was: Patch Available)
Committed to the decom branch.
> Add CLI Commands and Protobuf messages to trigger decom states
> --------------------------------------------------------------
>
> Key: HDDS-2196
> URL: https://issues.apache.org/jira/browse/HDDS-2196
> Project: Hadoop Distributed Data Store
> Issue Type: Sub-task
> Components: SCM, SCM Client
> Affects Versions: 0.5.0
> Reporter: Stephen O'Donnell
> Assignee: Stephen O'Donnell
> Priority: Major
> Labels: pull-request-available
> Fix For: 0.5.0
>
> Time Spent: 1.5h
> Remaining Estimate: 0h
>
> To all nodes to be decommissioned, recommissioned and put into maintenance,
> we need a few commands.
> These will be added to the existing "scm cli". 3 commands are proposed:
> Decommission:
> ozone scmcli dnadmin decommission hosta hostb hostc:port ...
> Put nodes into maintenance:
> osone scmcli dnadmin maintenance hosta hostb hostc:port ... <-endHours>
> Take nodes out of maintenance or halt decommission:
> ozone scmcli dnadmin recommission hosta hostb hostc:port
> These 3 commands will call 3 new protobuf messages and they will be part of
> the "StorageContainerLocationProtocol":
> * DecommissionNodesRequestProto
> * RecommissionNodesRequestProto
> * StartMaintenanceNodesRequestProto
> In additional a new class NodeDecommissionManager will be introduced that
> will receive these commands and carry out the decommission steps.
> In this patch NodeDecommissionManager is only a skeleton implementation to
> receive the commands as this patch is mainly focused on getting the CLI
> commands and protobuf messages in place.
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