You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@ozone.apache.org by "Uma Maheswara Rao G (Jira)" <ji...@apache.org> on 2022/06/16 16:52:00 UTC
[jira] [Assigned] (HDDS-6806) EC: Implement the EC Reconstruction coordinator
[ https://issues.apache.org/jira/browse/HDDS-6806?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Uma Maheswara Rao G reassigned HDDS-6806:
-----------------------------------------
Assignee: Uma Maheswara Rao G (was: Mark Gui)
> 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: Uma Maheswara Rao G
> 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
>
>
--
This message was sent by Atlassian Jira
(v8.20.7#820007)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@ozone.apache.org
For additional commands, e-mail: issues-help@ozone.apache.org