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Posted to common-dev@hadoop.apache.org by "Tsz Wo (Nicholas), SZE (JIRA)" <ji...@apache.org> on 2009/01/14 03:36:59 UTC

[jira] Commented: (HADOOP-5027) Block report processing should compare gneration stamp

    [ https://issues.apache.org/jira/browse/HADOOP-5027?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12663605#action_12663605 ] 

Tsz Wo (Nicholas), SZE commented on HADOOP-5027:
------------------------------------------------

This is not a problem if both sync and append are not used.

> Block report processing should compare gneration stamp
> ------------------------------------------------------
>
>                 Key: HADOOP-5027
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5027
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>            Reporter: Tsz Wo (Nicholas), SZE
>
> If a reported block has a different generation stamp then the one stored in the NameNode, the reported block will be considered as invalid.  This is incorrect since blocks with larger generation stamp are valid.

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