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https://issues.apache.org/jira/browse/HDDS-6806?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Uma Maheswara Rao G updated HDDS-6806:
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Component/s: DN
> EC: Implement the EC Reconstruction coordinator
> -----------------------------------------------
>
> Key: HDDS-6806
> URL: https://issues.apache.org/jira/browse/HDDS-6806
> Project: Apache Ozone
> Issue Type: Sub-task
> Components: DN
> Reporter: Uma Maheswara Rao G
> Assignee: Mark Gui
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.3.0
>
>
> This Jira implemented the reconstruction coordinator logic.
> ECReconstruction coordinator re-uses the ECReconstructedStripedInputStream,
> ECBlockOutputStream and ContainerProcolCalls for reconstruction of a
> container.
> Steps are a follows:
> For a container reconstruction task, the main flow is:
> - ListBlock from all healthy replicas
> - calculate effective block group len for all blocks
> - create RECOVERING containers in TargetDNs
> - for each block
> - build a ECReconstructedStripedInputStream to read healthy chunks
> - build a ECBlockOutputStream to write out decoded chunks
> - for each stripe
> - use ECReconstructedStripedInputStream.recoverChunks to decode
> chunks
> - use ECBlockOutputStream.write to write decoded chunks to TargetDNs
> - PutBlock
> - Close RECOVERING containers in TargetDNs
>
>
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