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https://issues.apache.org/jira/browse/HDFS-8768?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14627693#comment-14627693
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Walter Su commented on HDFS-8768:
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That's because In JavaScript, all numbers are 64 bits floating point numbers.
And block group ID counting from Long.MIN_VALUE in NN. The json got from
webhdfs is correct.
> Erasure Coding: block group ID displayed in WebUI is not consistent with fsck
> -----------------------------------------------------------------------------
>
> Key: HDFS-8768
> URL: https://issues.apache.org/jira/browse/HDFS-8768
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Reporter: GAO Rui
> Attachments: Screen Shot 2015-07-14 at 15.33.08.png
>
>
> For example, In WebUI( usually, namenode port: 50070) , one Erasure Code
> file with one block group was displayed as the attached screenshot [^Screen
> Shot 2015-07-14 at 15.33.08.png]. But, with fsck command, the block group of
> the same file was displayed like: {{0.
> BP-1130999596-172.23.38.10-1433791629728:blk_-9223372036854740160_3384
> len=6438256640}}
> After checking block file names in datanodes, we believe WebUI may have some
> problem with Erasure Code block group display.
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