[jira] Updated: (HADOOP-3283) Need a mechanism for data nodes to update generation stamps.

["Tsz Wo (Nicholas), SZE (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HADOOP-3283?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tsz Wo (Nicholas), SZE updated HADOOP-3283:
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    Assignee: Tsz Wo (Nicholas), SZE

For adding a Datanode RPC server, we need to store the RPC server port and distribute it.  One way is to store the port in DatanodeID.  I am not sure whether it is the right way to go.

> Need a mechanism for data nodes to update generation stamps.
> ------------------------------------------------------------
>
>                 Key: HADOOP-3283
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3283
>             Project: Hadoop Core
>          Issue Type: New Feature
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Tsz Wo (Nicholas), SZE
>
> For implementing file append feature (HADOOP-1700), a generation stamp is added to each block.  We need a mechanism for data nodes to update generation stamps for lease recovery.

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