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