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From "Eric Badger (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-10459) getTurnOffTip computes needed block incorrectly for threshold < 1
Date Wed, 25 May 2016 18:05:12 GMT

     [ https://issues.apache.org/jira/browse/HDFS-10459?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Eric Badger updated HDFS-10459:
-------------------------------
    Attachment: HDFS-10459-b2.7.002.patch

Attaching branch-2.7 patch.

> getTurnOffTip computes needed block incorrectly for threshold < 1
> -----------------------------------------------------------------
>
>                 Key: HDFS-10459
>                 URL: https://issues.apache.org/jira/browse/HDFS-10459
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.9.0
>            Reporter: Eric Badger
>            Assignee: Eric Badger
>         Attachments: HDFS-10459-b2.7.002.patch, HDFS-10459.001.patch, HDFS-10459.002.patch
>
>
> The computation works on threshold = 1, but not on threshold < 1. I propose making
blockThreshold equal to the ceiling of total*threshold. Since we need to be >= blockThreshold
to get out of safe mode, >14.9 is the same as =15, since blocks work in integer values.




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