hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-2195) Support cyclic replication
Date Thu, 08 Sep 2011 04:33:09 GMT

    [ https://issues.apache.org/jira/browse/HBASE-2195?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13099821#comment-13099821
] 

Ted Yu commented on HBASE-2195:
-------------------------------

We were lucky to be able to squeeze version into HLogKey this time (version 0 vs. version
-1). My expectation is that we may add more fields beyond UUID cluster Id.
Exposing getVersion() allows ReplicationSink/ReplicationSource to handle WALEdit's coming
from clusters running different releases of HBase.
E.g. FB may run 0.89 in some clusters and 0.90.x in other clusters.

Michael brought VersionedWritable up @ 04/Sep/11 22:52
I think we should make use of it.

> 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-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.

--
This message is automatically generated by JIRA.
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message