Dario,

The logs are quote lengthy, so I sent them to you directly. Marathon version is 
0.8.1.

Thank you
Nikolay

From: Dario Rexin [mailto:[email protected]]
Sent: Monday, April 27, 2015 4:01 PM
To: [email protected]
Subject: Re: Marathon chage of leader and stalled deployments

Hi Nikolay,

this is an unexpected behavior. Could you please post the log output from the 
leading node around the time you try to scale? Also, what version of Marathon 
are you running?

Thanks,
Dario


On 27.04.2015, at 20:41, Nikolay Borodachev 
<[email protected]<mailto:[email protected]>> wrote:
Hello All,

I noticed a strange behavior of a Marathon cluster. The cluster consist of 3 
mesos/marathon masters and 3 slaves.

Once the cluster is freshly started I can start a process (e.g. httpd) and 
scale it up and down without any problems. Everything works as it should.
However, if a Marathon leader goes down or gets restarted, the managed 
processes cannot be scaled anymore. The scaling request gets queued but does 
not get executed by a new Marathon leader.
I found that if I recycle the current leader until the original server becomes 
a leader again, the  scaling request would not move.
It is only when the server that used to be a leader when the tasks were created 
becomes a leader again then these tasks can be scaled.

Is this a known and expected behavior?

Thanks
Nikolay

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