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Posted to hdfs-issues@hadoop.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2019/02/26 01:19:00 UTC

[jira] [Work logged] (HDDS-1178) Healthy pipeline Chill Mode Rule

     [ https://issues.apache.org/jira/browse/HDDS-1178?focusedWorklogId=204007&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-204007 ]

ASF GitHub Bot logged work on HDDS-1178:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 26/Feb/19 01:18
            Start Date: 26/Feb/19 01:18
    Worklog Time Spent: 10m 
      Work Description: bharatviswa504 commented on pull request #518: HDDS-1178. Healthy pipeline Chill Mode Rule.
URL: https://github.com/apache/hadoop/pull/518
 
 
   
 
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Issue Time Tracking
-------------------

            Worklog Id:     (was: 204007)
            Time Spent: 10m
    Remaining Estimate: 0h

> Healthy pipeline Chill Mode Rule
> --------------------------------
>
>                 Key: HDDS-1178
>                 URL: https://issues.apache.org/jira/browse/HDDS-1178
>             Project: Hadoop Distributed Data Store
>          Issue Type: Bug
>          Components: SCM
>            Reporter: Bharat Viswanadham
>            Assignee: Bharat Viswanadham
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> This Jira is to implement one of the chill mode rule.
> h2. Pipeline Rule with configurable percentage of open pipelines with all datanodes reported:
> h2. In this rule, we consider when at least 10% of the pipelines have all 3 data node's reported (if it is a 3 node ratis ring), and one node reported if it is a one node ratis ring. (The percentage is configurable via ozone configuration parameter).
>  
> This rule satisfies, once the SCM is restarted, and after exiting chill mode, we have enough pipelines to give for clients for writes to succeed.
>  



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