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Posted to common-issues@hadoop.apache.org by "Jing Zhao (JIRA)" <ji...@apache.org> on 2012/09/20 20:28:08 UTC

[jira] [Commented] (HADOOP-8831) FSEditLog preallocate() needs to reset the position of PREALLOCATE_BUFFER when more than 1MB size is needed

    [ https://issues.apache.org/jira/browse/HADOOP-8831?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13459833#comment-13459833 ] 

Jing Zhao commented on HADOOP-8831:
-----------------------------------

I should create this jira in HDFS... 
                
> FSEditLog preallocate() needs to reset the position of PREALLOCATE_BUFFER when more than 1MB size is needed
> -----------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-8831
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8831
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 1.2.0
>            Reporter: Jing Zhao
>            Priority: Critical
>
> In the new preallocate() function, when the required size is larger 1MB, we need to reset the position for PREALLOCATION_BUFFER every time when we have allocated 1MB. Otherwise seems only 1MB can be allocated even if need is larger than 1MB.

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