[jira] Reopened: (HBASE-2129) Simple Master/Slave replication

["Andrew Purtell (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-2129?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrew Purtell reopened HBASE-2129:
-----------------------------------


Broken on trunk after commit of HBASE-2283. 

Needs some rework. ReplicationHLog.doWrite assumes a WAL edit contains only a single KV. But HBASE-2283 made row edits atomic. Multiple KVs corresponding to multiple columns may be in a log entry now, and not all columns may have the same scope. 

> Simple Master/Slave replication
> -------------------------------
>
>                 Key: HBASE-2129
>                 URL: https://issues.apache.org/jira/browse/HBASE-2129
>             Project: Hadoop HBase
>          Issue Type: Sub-task
>            Reporter: Jean-Daniel Cryans
>            Assignee: Jean-Daniel Cryans
>             Fix For: 0.21.0
>
>         Attachments: HBASE-2129-v2.patch, HBASE-2129-v3.patch, HBASE-2129.patch
>
>
> We should first build a very simple replication mechanism to validate our assumptions and get a feel of what replication is in this very distributed context. 

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