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Posted to hdfs-issues@hadoop.apache.org by "Surendra Singh Lilhore (JIRA)" <ji...@apache.org> on 2019/07/31 09:33:00 UTC
[jira] [Work started] (HDFS-14687) Standby Namenode never come out
of samemode when EC files are being written.
[ https://issues.apache.org/jira/browse/HDFS-14687?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Work on HDFS-14687 started by Surendra Singh Lilhore.
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> Standby Namenode never come out of samemode 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
>
>
> When huge number of EC files are being written and SBN is restarted then it will never come out of same 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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