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https://issues.apache.org/jira/browse/HBASE-16415?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16071292#comment-16071292
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Jan Kunigk commented on HBASE-16415:
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Thanks, I also just realised, that with Option 2 we could have a user configure
two redirections with the same source, which is not something that the
redirection code supports in this initial patch.
With Option 1, we can rule out such misconfiguration via the the Map Interfaces
invariant, that it may never contain duplicate keys.
J
> 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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