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Posted to issues@ozone.apache.org by "Siddharth Wagle (Jira)" <ji...@apache.org> on 2021/08/09 15:48:00 UTC
[jira] [Assigned] (HDDS-5146) Recon should be resilient against
failure between updates to OM copy DB and post processing task
[ https://issues.apache.org/jira/browse/HDDS-5146?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Siddharth Wagle reassigned HDDS-5146:
-------------------------------------
Assignee: (was: Aravindan Vijayan)
> Recon should be resilient against failure between updates to OM copy DB and post processing task
> ------------------------------------------------------------------------------------------------
>
> Key: HDDS-5146
> URL: https://issues.apache.org/jira/browse/HDDS-5146
> Project: Apache Ozone
> Issue Type: Bug
> Components: Ozone Recon
> Affects Versions: 1.1.0
> Reporter: Aravindan Vijayan
> Priority: Major
> Fix For: 1.2.0
>
>
> Currently Recon gets delta updates from OM (new OM updates from Recon's current txn id), and first updates its own OM snapshot DB, and second forwards the list of updates to the post processing tasks that typically update a SQL DB. A failure between step 1 and step 2 can cause the post processing tasks to never get the updates for this batch.
> *Workaround until fix*
> Reset Recon by deleting/renaming OM snapshot DB. It will re-init all the tasks.
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