hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Gary Helmling (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-3677) Generate a globally unique identifier for a cluster and store in /hbase/hbase.id
Date Mon, 28 Mar 2011 20:47:05 GMT

    [ https://issues.apache.org/jira/browse/HBASE-3677?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13012219#comment-13012219
] 

Gary Helmling commented on HBASE-3677:
--------------------------------------

Posted patch for review here: http://review.cloudera.org/r/1669/

> Generate a globally unique identifier for a cluster and store in /hbase/hbase.id
> --------------------------------------------------------------------------------
>
>                 Key: HBASE-3677
>                 URL: https://issues.apache.org/jira/browse/HBASE-3677
>             Project: HBase
>          Issue Type: Improvement
>          Components: master
>            Reporter: Gary Helmling
>            Assignee: Gary Helmling
>             Fix For: 0.92.0
>
>
> We don't currently have a way to uniquely identify an HBase cluster, apart for where
it's stored in HDFS or configuration of the ZooKeeper quorum managing it.  It would be generally
useful to be able to identify a cluster via API.
> The proposal here is pretty simple:
> # When master initializes the filesystem, generate a globally unique ID and store in
/hbase/hbase.id
> # For existing clusters, generate hbase.id on master startup if it does not exist
> # Include unique ID in ClusterStatus returned from master
> For token authentication, this will be required to allow selecting the correct token
to pass to a cluster when a single client is communicating to more than one HBase instance.
> Chatting with J-D, replication stores it's own cluster id in place with each HLog edit,
so requires as small as possible an identifier, but I think we could automate a mapping from
unique cluster ID -> short ID if we had the unique ID available.

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

Mime
View raw message