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https://issues.apache.org/jira/browse/KUDU-1078?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16769990#comment-16769990
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Simon Zhang commented on KUDU-1078:
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Hi [~adar], Thanks a lot
> Under heavy load, log cache reads return "Op in future"
> -------------------------------------------------------
>
> Key: KUDU-1078
> URL: https://issues.apache.org/jira/browse/KUDU-1078
> Project: Kudu
> Issue Type: Improvement
> Components: consensus
> Affects Versions: Private Beta
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Priority: Major
> Fix For: 1.6.0
>
>
> JD accidentally configured botl80 so that all nodes were writing to a single
> tablet (talk about a stress test!) I see the following warning occasionally
> in the leader logs:
> W0827 11:34:04.051275 55950 consensus_queue.cc:272] T
> d6ff74fb04454712873abd0d2328e59b P 668314723deb4a818cc9a43eba51073c [LEADER]:
> The logs necessary to catch up peer 600e62435ca24425b29c00d9726b78be have
> been garbage collected. The follower will never be able to catch up (Not
> found: op in future). Instructing remote peer to remotely bootstrap.
> Calling this a blocker because, if we couple this with the "automatically
> re-bootstrap nodes if they fall behind", we'll be accidentally deleting
> tablets when this happens (no good!)
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