Logs being flooded with "unable to get fs usage from thin pool"

Rancher 1.x
1

I am seeing the following error continuously logged by the rancher/agent container at a rate of hundreds per second to the point of which it is flooding logs and making it difficult to find data of interest:

handler.go:278] unable to get fs usage from thin pool for device 23: no cached value for usage of device 2

Here are the versions I am running:
rancher/server:v1.1.
rancher/agent:v1.0.2

There are a several related GH issues, but I am unable to understand how to fix this.

Can anyone point me in the right direction? Is this fixed in recent versions of rancher? Do I need to run rancher with special docker options (i.e. DOCKER_OPTS= "--storage-driver=AUFS")?

2

This is an issue with cadvisor.

In the next release of rancher, we have removed cadvisor from Rancher so Rancher will not hit this error.

3

Next release of rancher meaning v1.2.0?

4

Yes, it will be in v1.2.0, which will be our next stable release that we recommend for production.

It was switched after v1.2.0-pre3.

5

With version 1.2.0-pre4-rc6 (4 days old) which appears to use rancher/agent:v1.1.0-rc7 you get this instead, albeit much less frequently :-

time=“2016-11-01T18:14:54Z” level=error msg="Error getting local storage usage: no such file or directory"
time=“2016-11-01T18:16:08Z” level=error msg="Error getting local storage usage: no such file or directory"
time=“2016-11-01T18:17:20Z” level=error msg="Error getting local storage usage: no such file or directory"
time=“2016-11-01T18:18:34Z” level=error msg="Error getting local storage usage: no such file or directory"
time=“2016-11-01T18:19:48Z” level=error msg=“Error getting local storage usage: no such file or directory”