[jira] [Assigned] (HDDS-4560) Add ReadWriteLock into PipelineStateMap to protect contention between RaftServer and PipelineManager

["Glen Geng (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDDS-4560?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Glen Geng reassigned HDDS-4560:
-------------------------------

    Assignee: Glen Geng

> Add ReadWriteLock into PipelineStateMap to protect contention between RaftServer and PipelineManager
> ----------------------------------------------------------------------------------------------------
>
>                 Key: HDDS-4560
>                 URL: https://issues.apache.org/jira/browse/HDDS-4560
>             Project: Hadoop Distributed Data Store
>          Issue Type: Sub-task
>          Components: SCM HA
>    Affects Versions: 1.1.0
>            Reporter: Glen Geng
>            Assignee: Glen Geng
>            Priority: Major
>
> Add ReadWriteLock into PipelineStateMap to protect contention between RaftServer and PipelineManager.
> If current SCM (as leader of term N) step-down while there is some on-going transaction, there might be read-write contention that new leader (as leader of term N+1) replicate some method(addPipeline/removePipeline) to underlying raft log which will be executed by StateMachineUpdater, and at the same time PipelineManager is doing some getPipeline operations.



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