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https://issues.apache.org/jira/browse/HDDS-1569?focusedWorklogId=318988&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-318988
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ASF GitHub Bot logged work on HDDS-1569:
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Author: ASF GitHub Bot
Created on: 26/Sep/19 14:25
Start Date: 26/Sep/19 14:25
Worklog Time Spent: 10m
Work Description: timmylicheng commented on issue #1431: HDDS-1569
Support creating multiple pipelines with same datanode
URL: https://github.com/apache/hadoop/pull/1431#issuecomment-535527900
Many integration tests using MiniOzoneCluster seem to have memory issues,
which could be related to the change of '1 to 1' mapping between datanode and
pipeline as well as Ratis itself. Open
https://issues.apache.org/jira/browse/HDDS-2186 to track this.
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Issue Time Tracking
-------------------
Worklog Id: (was: 318988)
Time Spent: 4h 50m (was: 4h 40m)
> Add ability to SCM for creating multiple pipelines with same datanode
> ---------------------------------------------------------------------
>
> Key: HDDS-1569
> URL: https://issues.apache.org/jira/browse/HDDS-1569
> Project: Hadoop Distributed Data Store
> Issue Type: Sub-task
> Components: SCM
> Reporter: Siddharth Wagle
> Assignee: Li Cheng
> Priority: Major
> Labels: pull-request-available
> Time Spent: 4h 50m
> Remaining Estimate: 0h
>
> - Refactor _RatisPipelineProvider.create()_ to be able to create pipelines
> with datanodes that are not a part of sufficient pipelines
> - Define soft and hard upper bounds for pipeline membership
> - Create SCMAllocationManager that can be leveraged to get a candidate set of
> datanodes based on placement policies
> - Add the datanodes to internal datastructures
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