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Posted to hdfs-dev@hadoop.apache.org by "Bharat Viswanadham (JIRA)" <ji...@apache.org> on 2019/02/26 23:45:00 UTC
[jira] [Created] (HDDS-1182) Pipeline Rule where atleast one
datanode is reported in the pipeline
Bharat Viswanadham created HDDS-1182:
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Summary: 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
Reporter: Bharat Viswanadham
Assignee: Bharat Viswanadham
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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