[
https://issues.apache.org/jira/browse/HADOOP-2656?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12596746#action_12596746
]
Hudson commented on HADOOP-2656:
--------------------------------
Integrated in Hadoop-trunk #491 (See
[http://hudson.zones.apache.org/hudson/job/Hadoop-trunk/491/])
> Support for upgrading existing cluster to facilitate appends to HDFS files
> --------------------------------------------------------------------------
>
> Key: HADOOP-2656
> URL: https://issues.apache.org/jira/browse/HADOOP-2656
> Project: Hadoop Core
> Issue Type: Bug
> Components: dfs
> Reporter: dhruba borthakur
> Assignee: dhruba borthakur
> Fix For: 0.18.0
>
> Attachments: upgradeGenStamp.patch, upgradeGenStamp10.patch,
> upgradeGenStamp11.patch, upgradeGenStamp12.patch, upgradeGenStamp4.patch,
> upgradeGenStamp5.patch, upgradeGenStamp6.patch, upgradeGenStamp7.patch,
> upgradeGenStamp8.patch, upgradeGenStamp9.patch, upgradeGenStamp9.patch
>
>
> HADOOP-1700 describes the design for supporting appends to HDFS files. This
> design requires a distributed-upgrade to existing cluster installations. The
> design specifies that the DataNode persist the 8-byte BlockGenerationStamp in
> the block metadata file. The upgrade code will introduce this new field in
> the block metadata file and initialize this value to 0.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
