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https://issues.apache.org/jira/browse/HDDS-16497?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ivan Andika updated HDDS-16497:
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Summary: Support passing Hadoop ThreadLocal context to Ratis (was: Support
passing Hadoop context to Ratis)
> Support passing Hadoop ThreadLocal context to Ratis
> ---------------------------------------------------
>
> Key: HDDS-16497
> URL: https://issues.apache.org/jira/browse/HDDS-16497
> Project: Apache Ozone
> Issue Type: Sub-task
> Reporter: Ivan Andika
> Assignee: Ivan Andika
> Priority: Critical
>
> While working on HDDS-15089, encountered an NPE issue that was caused by null
> Server.getRemoteUser() in OzoneManager#getS3VolumeContext. This reason is
> that Ratis would call StateMachine#query in a separate thread (under
> RaftServerImpl#clientExecutor). Therefore, the ThreadLocal CurrCall which is
> used by Server.getRemoteUser(). This affects all read requests that require
> using ThreadLocal one way or another.
>
> We need a way to propagate the ThreadLocal context to the StateMachine#query.
>
> *Note this suggests that follower read feature is not production ready until
> this is resolved.*
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