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https://issues.apache.org/jira/browse/HBASE-2195?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13100359#comment-13100359
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Ted Yu commented on HBASE-2195:
-------------------------------
The special handling in readFields() already makes HLogKey deviate from a
single class version. Meaning when this.clusterId carries
HConstants.DEFAULT_CLUSTER_ID, there is a chance that the HLogKey wasn't
generated in local cluster.
I think that's why we call it DEFAULT_CLUSTER_ID instead of LOCAL_CLUSTER_ID.
We can create our own VersionedWritable interface (maybe with a different name)
which HLogKey can implement.
> Support cyclic replication
> --------------------------
>
> Key: HBASE-2195
> URL: https://issues.apache.org/jira/browse/HBASE-2195
> Project: HBase
> Issue Type: Sub-task
> Components: replication
> Reporter: Jean-Daniel Cryans
> Assignee: Lars Hofhansl
> Attachments: 2195-v10.txt, 2195-v12.txt, 2195-v13.txt, 2195-v14.txt,
> 2195-v5.txt, 2195-v6.txt, 2195.txt
>
>
> We need to support cyclic replication by using the cluster id of each HlogKey
> and stop replicating when it goes back to the original cluster.
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