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From "Surendra Singh Lilhore (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-14687) Standby Namenode never come out of safemode when EC files are being written.
Date Mon, 05 Aug 2019 19:51:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-14687?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Surendra Singh Lilhore updated HDFS-14687:
------------------------------------------
    Attachment: HDFS-14687.002.patch

> Standby Namenode never come out of safemode when EC files are being written.
> ----------------------------------------------------------------------------
>
>                 Key: HDFS-14687
>                 URL: https://issues.apache.org/jira/browse/HDFS-14687
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: ec, namenode
>    Affects Versions: 3.1.1
>            Reporter: Surendra Singh Lilhore
>            Assignee: Surendra Singh Lilhore
>            Priority: Critical
>         Attachments: HDFS-14687.001.patch, HDFS-14687.002.patch
>
>
> When huge number of EC files are being written and SBN is restarted then it will never
come out of safe mode and required blocks count getting increase.
> {noformat}
> The reported blocks 16658401 needs additional 1702 blocks to reach the threshold 0.99999
of total blocks 16660120.
> The reported blocks 16658659 needs additional 2935 blocks to reach the threshold 0.99999
of total blocks 16661611.
> The reported blocks 16659947 needs additional 3868 blocks to reach the threshold 0.99999
of total blocks 16663832.
> The reported blocks 16666335 needs additional 5116 blocks to reach the threshold 0.99999
of total blocks 16671468.
> The reported blocks 16669311 needs additional 6384 blocks to reach the threshold 0.99999
of total blocks 16675712.
> {noformat}



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