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Date: Mon, 19 Jun 2017 22:08:00 +0000 (UTC)
From: "Guanghao Zhang (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
Message-ID: <JIRA.12997255.1471252557000.52295.1497910080397@Atlassian.JIRA>
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Subject: [jira] [Commented] (HBASE-16415) Replication in different namespace
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archived-at: Mon, 19 Jun 2017 22:08:07 -0000


    [ https://issues.apache.org/jira/browse/HBASE-16415?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16054827#comment-16054827 ] 

Guanghao Zhang commented on HBASE-16415:
----------------------------------------

Why not extends HBaseInterClusterReplicationEndpoint and only override createBatches method?

bq. It seems option 3 is better.
redirect() is only a behavior of RedirectingInterClusterReplicationEndpoint. So it is not good to add it to the parent class? Thanks.

> Replication in different namespace
> ----------------------------------
>
>                 Key: HBASE-16415
>                 URL: https://issues.apache.org/jira/browse/HBASE-16415
>             Project: HBase
>          Issue Type: New Feature
>          Components: Replication
>            Reporter: Christian Guegi
>            Assignee: Jan Kunigk
>
> It would be nice to replicate tables from one namespace to another namespace.
> Example:
> Master cluster, namespace=default, table=bar
> Slave cluster, namespace=dr, table=bar
> Replication happens in class ReplicationSink:
>   public void replicateEntries(List<WALEntry> entries, final CellScanner cells, ...){
>     ...
>     TableName table = TableName.valueOf(entry.getKey().getTableName().toByteArray());
>     ...
>     addToHashMultiMap(rowMap, table, clusterIds, m);
>     ...
>     for (Entry<TableName, Map<List<UUID>, List<Row>>> entry : rowMap.entrySet()) {
>       batch(entry.getKey(), entry.getValue().values());
>     }
>    }


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