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Posted to hdfs-issues@hadoop.apache.org by "Bharat Viswanadham (JIRA)" <ji...@apache.org> on 2019/02/26 23:47:00 UTC
[jira] [Work started] (HDDS-1182) Pipeline Rule where atleast one
datanode is reported in the pipeline
[ https://issues.apache.org/jira/browse/HDDS-1182?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Work on HDDS-1182 started by Bharat Viswanadham.
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> Pipeline Rule where atleast one datanode is reported in the pipeline
> --------------------------------------------------------------------
>
> Key: HDDS-1182
> URL: https://issues.apache.org/jira/browse/HDDS-1182
> Project: Hadoop Distributed Data Store
> Issue Type: Bug
> Components: SCM
> Reporter: Bharat Viswanadham
> Assignee: Bharat Viswanadham
> Priority: Major
>
> h2. Pipeline Rule with configurable percentage of pipelines with at least one datanode reported:
> In this rule we consider when at least 90% of pipelines have at least one datanode reported.
>
> This rule satisfies, when we exit chill mode, Ozone clients will have at least one open replica for reads to succeed. (We can increase this threshold default from 90%, if we want to see fewer failures during reads after exit chill mode.
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