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https://issues.apache.org/jira/browse/RATIS-435?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16830893#comment-16830893
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Lokesh Jain commented on RATIS-435:
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We might accumulate too many blocked requests from leader in the follower.
These requests might take up extra memory as well given that these can be chunk
write requests in case of Ozone. Also by failing the leader knows that the
follower is overburdened and leader can use it to throttle the requests to the
follower.
In future it can also let the client know of possible slowness in a particular
follower. In case of ozone it can be used to convey SCM of possibly slow
pipelines.
> RaftLogWorker uses a blocking queue which blocks append entries
> ---------------------------------------------------------------
>
> Key: RATIS-435
> URL: https://issues.apache.org/jira/browse/RATIS-435
> Project: Ratis
> Issue Type: Bug
> Reporter: Lokesh Jain
> Assignee: Lokesh Jain
> Priority: Major
> Labels: ozone
>
> Currently RaftLogWorker uses a blocking queue which blocks the append entries
> if the queue is full. We should rather fail the operation if the queue is
> full.
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