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Posted to issues@ozone.apache.org by "Glen Geng (Jira)" <ji...@apache.org> on 2020/12/08 11:59:00 UTC
[jira] [Updated] (HDDS-4560) Add ReadWriteLock into
PipelineStateManagerV2Impl to protect contentions between RaftServer and
PipelineManager
[ https://issues.apache.org/jira/browse/HDDS-4560?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Glen Geng updated HDDS-4560:
----------------------------
Description:
Add ReadWriteLock into PipelineStateManagerV2Impl to protect contentions between RaftServer and PipelineManager.
If current leader SCM (as leader of term N) steps down while there are on-going transactions, there might be read/write contentions that new leader SCM (as leader of term N+1) has replicated some raft log entries encapsulating method addPipeline()/removePipeline()/updatePipelineState() to the underlying RaftServer that are being applied by StateMachineUpdater, and at the same time PipelineManager is calling getPipelines().
was:
Add ReadWriteLock into PipelineStateMap to protect contentions between RaftServer and PipelineManager.
If current leader SCM (as leader of term N) steps down while there are on-going transactions, there might be read/write contentions that new leader SCM (as leader of term N+1) has replicated some raft log entries encapsulating method addPipeline()/removePipeline()/updatePipelineState() to the underlying RaftServer that are being applied by StateMachineUpdater, and at the same time PipelineManager is calling getPipelines().
> Add ReadWriteLock into PipelineStateManagerV2Impl to protect contentions 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 PipelineStateManagerV2Impl to protect contentions between RaftServer and PipelineManager.
> If current leader SCM (as leader of term N) steps down while there are on-going transactions, there might be read/write contentions that new leader SCM (as leader of term N+1) has replicated some raft log entries encapsulating method addPipeline()/removePipeline()/updatePipelineState() to the underlying RaftServer that are being applied by StateMachineUpdater, and at the same time PipelineManager is calling getPipelines().
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