[jira] Commented: (HBASE-2201) JRuby shell for replication

["Jean-Daniel Cryans (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-2201?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12895088#action_12895088 ] 

Jean-Daniel Cryans commented on HBASE-2201:
-------------------------------------------

Here's the list of commands I'm currently planning to add to the shell (strongly inspired by Andrew's pdf):

 - add_peer [label] [cluster_key]
Creates a new replication source on every region server to the new cluster and starts replication using the current HLog.

 - remove_peer [label]
Disables all the replication sources for that cluster, closes all the connections, deletes the replication sources and cleans the znodes.

 - enable_peer [label]
Restarts the stopped replication sources for that cluster.

 - disable_peer [label]
Stops the replication sources for that cluster, but continues keeping track of the new HLogs.

 - enable_replication
Restarts all the sources from the last state.

- disable_replication
Stops all the sources, and stops keeping track of the new HLogs. This is an extreme measure for if replication starts screwing the cluster in bad ways.

> JRuby shell for replication
> ---------------------------
>
>                 Key: HBASE-2201
>                 URL: https://issues.apache.org/jira/browse/HBASE-2201
>             Project: HBase
>          Issue Type: Sub-task
>          Components: replication
>            Reporter: Jean-Daniel Cryans
>            Assignee: Jean-Daniel Cryans
>             Fix For: 0.90.0
>
>
> We need a shell to easily issue administration commands for replication. It should be easy to merge with existing core shell.

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