[
https://issues.apache.org/jira/browse/HDDS-13960?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Swaminathan Balachandran resolved HDDS-13960.
---------------------------------------------
Resolution: Fixed
> Convert FlatResource Lock into DAG based lock ordering for the snapshot lock
> ----------------------------------------------------------------------------
>
> Key: HDDS-13960
> URL: https://issues.apache.org/jira/browse/HDDS-13960
> Project: Apache Ozone
> Issue Type: Sub-task
> Reporter: Swaminathan Balachandran
> Assignee: Swaminathan Balachandran
> Priority: Major
> Labels: pull-request-available
>
> The current leveled resource implementation is not ideal for having an
> implementation since it only works on mask which can mean that only one
> resource can be there at one level. However for more complex locking levels
> this is not sufficient. Proposal here is to convert FlatResource into
> DAGLeveledResource with which one can enforce more complex ordering to ensure
> lock ordering.
> This would be useful for ensuring SNAPSHOT_DB_CONTENT_LOCK is always acquired
> before SNAPSHOT_DB_HANDLE_LOCK. This is to avoid any sort of deadlock later
> on. The same implementation can be also extended to bootstrap lock.
> Bootstrap code can acquire a complete resource stripe lock making the design
> extensible as well.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
