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From "Tom Arnfeld" <>
Subject Re: CPU soft lock up on mesos-slave
Date Mon, 31 Aug 2015 23:16:35 GMT
Hi Chris,

Perhaps you've run into
We ran into similar symptoms that you've described and taking the above as the cause solved
all of our issues.

Hope this helps!


Tom Arnfeld

Developer // DueDil

(+44) 7525940046

25 Christopher Street, London, EC2A 2BS

On Mon, Aug 31, 2015 at 11:55 PM, Christopher Ketchum <>

> Hi all,
> I was running a Mesos cluster on EC2 with c4.8xlarge instance types when
> one of the status checks failed. We are running Mesos 0.22.1 on ubuntu
> 14.04, with kernel version 3.13.0-55-generic. EC2 gave us this console
> output[1]. I did some searching and found similar issues reported here[2]
> on lkml, though those logs indicated a specific task and an older kernel,
> while these logs just show mesos-slave as the causative process.
> Unfortunately, the instance was terminated so I'm not sure how much useful
> debugging can be done. Is this a known issue? We are also using a our own
> python executor, could an error there have caused this?
> [1]
> [2]
> Thanks,
> Chris
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