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From "Brian Fu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-8104) HBase consistency and availability after replication
Date Thu, 14 Mar 2013 13:12:13 GMT
Brian Fu created HBASE-8104:

             Summary: HBase consistency and availability after replication
                 Key: HBASE-8104
                 URL: https://issues.apache.org/jira/browse/HBASE-8104
             Project: HBase
          Issue Type: New Feature
    Affects Versions: 0.94.3
            Reporter: Brian Fu
            Priority: Critical

HBase consistency and availability after replication
Scene as follows:
1. There are two HBase clusters are the Master  clusters and Slave Clusters.  two clusters
replication function is open.
2. if master cluster have problems, so  all write and read request switching to the slave
3. After a period of time ,we need to switch back to the Master cluster, there will be a part
of the data is inconsistent, lead to  this part of the data is not available.

This feature is particularly important for providing online services HBase cluster.
So, I want through a write-back program to keep the data consistency, then to improve HBase
we will provide a patch for this function.

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