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https://issues.apache.org/jira/browse/HDDS-1178?focusedWorklogId=204101&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-204101
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ASF GitHub Bot logged work on HDDS-1178:
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Author: ASF GitHub Bot
Created on: 26/Feb/19 06:21
Start Date: 26/Feb/19 06:21
Worklog Time Spent: 10m
Work Description: bharatviswa504 commented on issue #518: HDDS-1178.
Healthy pipeline Chill Mode Rule.
URL: https://github.com/apache/hadoop/pull/518#issuecomment-467311361
Thank You @anuengineer for the review.
1. Low 10% is, as this rule main purpose is once we are out of chill mode,
we have atleast few pipelines for writes to succeed. (As other rules like
container chill mode rule, pipeline rule with at least one datanode reported by
the time these completed, we might have more pipelines, this rule is more like
a conservative side.) Let me know if you want to change it to any other default
value.
2. Thanks for catching it. done.
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Issue Time Tracking
-------------------
Worklog Id: (was: 204101)
Time Spent: 40m (was: 0.5h)
> 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: 40m
> 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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