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Log message error on all nodes: encountered error refreshing thin pool watcher: error performing thin_ls on metadata device /dev/mapper/cah-docker--pool_tmeta: Error running command `thin_ls --no-headers -m -o DEV,EXCLUSIVE_BYTES /dev/mapper/cah-docker--pool_tmeta`: exit status 127



Hi,

I have many many lines with this error message in nodes logs:

Feb 27 17:51:13 atomic-test-node-1.priv.tech-angels.net origin-node[24165]: E0227 17:51:13.183150   24451 thin_pool_watcher.go:72] encountered error refreshing thin pool watcher: error performing thin_ls on metadata device /dev/mapper/cah-docker--pool_tmeta: Error running command `thin_ls --no-headers -m -o DEV,EXCLUSIVE_BYTES /dev/mapper/cah-docker--pool_tmeta`: exit status 127

Do you know what is this error? How can I fix it?

My nodes use Centos Atomic OS:

# atomic host status
State: idle
Deployments:
● centos-atomic-host:centos-atomic-host/7/x86_64/standard
       Version: 7.20170209 (2017-02-10 00:54:47)
        Commit: d433342b09673c9c4d75ff6eef50a447e73a7541491e5197e1dde14147b164b8
        OSName: centos-atomic-host
  GPGSignature: 1 signature
                Signature made Fri 10 Feb 2017 02:06:18 AM CET using RSA key ID F17E745691BA8335
                Good signature from "CentOS Atomic SIG <security centos org>"

# docker version
Client:
 Version:         1.12.5
 API version:     1.24
 Package version: docker-common-1.12.5-14.el7.centos.x86_64
 Go version:      go1.7.4
 Git commit:      047e51b/1.12.5
 Built:           Mon Jan 23 15:35:13 2017
 OS/Arch:         linux/amd64

Server:
 Version:         1.12.5
 API version:     1.24
 Package version: docker-common-1.12.5-14.el7.centos.x86_64
 Go version:      go1.7.4
 Git commit:      047e51b/1.12.5
 Built:           Mon Jan 23 15:35:13 2017
 OS/Arch:         linux/amd64


OpenShift Master:  v1.4.1+3f9807a
Kubernetes Master: v1.4.0+776c994 

Best regards,
Stéphane

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