You commonly get this error, when:

* you are too quick clicking on the slave link after starting a task. 
Refreshing after a couple of seconds should fix the issue.

* your cluster is misconfigured so that your slave `--work_dir` path does not 
align with the `--mesos-root` of the Thermos observer. Details in 
https://github.com/apache/aurora/blob/31a538f190e356a4f82c767ce5c952cc62ba9778/docs/installing.md#configuration-1



________________________________
From: Krish <[email protected]>
Sent: Thursday, March 17, 2016 07:26
To: [email protected]
Subject: Thermos Observer Error

I am running an example job & trying to find what data does the thermos 
observer collect about jobs.
However, when I click on the URL in Aurora UI, I see this:

Error: 404 Not Found
Sorry, the requested URL 
'http://52.207.234.159:1338/task/1458194403029-root-devel-example_job-0-af5704f3-097e-4ff0-b133-3bcbd93e4855'
 caused an error:
Failed to find task 
1458194403029-root-devel-example_job-0-af5704f3-097e-4ff0-b133-3bcbd93e4855.  
Try again shortly.

Thermos observer is running as a privileged container alongside mesos-agent 
container on a slave.
Is there any special consideration for containers or some config I am missing?


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????h???

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