You are viewing a plain text version of this content. The canonical link for it is here.

Posted to common-dev@hadoop.apache.org by "dhruba borthakur (JIRA)" <ji...@apache.org> on 2008/04/28 22:51:55 UTC

[jira] Commented: (HADOOP-2797) Withdraw CRC upgrade from HDFS

    [ https://issues.apache.org/jira/browse/HADOOP-2797?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12592892#action_12592892 ] 

dhruba borthakur commented on HADOOP-2797:
------------------------------------------

+1. Code looks good.

One option would be to keep the existing test and ensure that it *fails*. This will test that if anybody tries to upgrade an old version, then the upgrade will fail.

> Withdraw CRC upgrade from HDFS
> ------------------------------
>
>                 Key: HADOOP-2797
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2797
>             Project: Hadoop Core
>          Issue Type: New Feature
>          Components: dfs
>    Affects Versions: 0.13.0
>            Reporter: Robert Chansler
>            Assignee: Raghu Angadi
>            Priority: Critical
>         Attachments: HADOOP-2797.patch, HADOOP-2797.patch
>
>
> HDFS will no longer support upgrades from versions without CRCs for block data. Users upgrading from version 0.13 or earlier must first upgrade to an intermediate (0.14, 0.15, 0.16) version before upgrade to 0.17 or later.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.