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Posted to issues@ozone.apache.org by "Aravindan Vijayan (Jira)" <ji...@apache.org> on 2019/12/20 17:55:00 UTC
[jira] [Updated] (HDDS-2579) Ozone client should refresh pipeline
info if reads from all Datanodes fail.
[ https://issues.apache.org/jira/browse/HDDS-2579?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Aravindan Vijayan updated HDDS-2579:
------------------------------------
Status: Patch Available (was: In Progress)
> Ozone client should refresh pipeline info if reads from all Datanodes fail.
> ---------------------------------------------------------------------------
>
> Key: HDDS-2579
> URL: https://issues.apache.org/jira/browse/HDDS-2579
> Project: Hadoop Distributed Data Store
> Issue Type: Bug
> Components: Ozone Client
> Reporter: Aravindan Vijayan
> Assignee: Aravindan Vijayan
> Priority: Major
> Fix For: 0.5.0
>
>
> Currently, if the client reads from all Datanodes in the pipleine fail, the read fails altogether. There may be a case when the container is moved to a new pipeline by the time client reads. In this case, the client should request for a refresh pipeline from OM, and read it again if the new pipeline returned from OM is different.
> This behavior is consistent with that of HDFS.
> cc [~msingh] / [~shashikant] / [~hanishakoneru]
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