possible livelock detected in app server under heavy load

Description

During a few load load-test sessions the server would reach high CPU usage and enter some sort of livelock which will keep it spinning (at least one CPU core would be at 100%). All connections to the server would hang and no more action would be possible except killing it.
This has been reproduced a couple of times by applying a significant load to the server (~3000 simulcontrollers on a single app instance server).
I've attached the log of a stack trace from an affected server.

QA Test Steps

No QA required for this one as this has been hard to repro. And there is no code change in Mattermost.

Activity

Show:
Linda Mitchell
August 3, 2020, 10:28 PM

Thanks, closing, no further testing required.

Done

Mana

None

Assignee

Agniva De Sarker

QA Assignee

None

Reporter

Claudio Costa

Epic Link

None

Fix versions

Mattermost Team

Platform

Sprint

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QA Testing Areas

Other (write in QA test steps)

GitHub Issue

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Components

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Severity

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