aufs test_add:246:docker[973] /var/lib/docker/ is overlapped

[coderlol]

Docker version: 0.7.5

I have 2 images: tomcat and jenkins. jenkins is based on tomcat

The tomcat image sets up tomcat, supervisor, etc. Tomcat is installed to /opt/tomcat
The jenkins image is "from" tomcat and add the jenkins.war file to the tomcat /opt/tomcat/webapps dir.

Building jenkins give the following message:
aufs test_add:246:docker[973] /var/lib/docker/ is overlapped

What gives? If I do not add the jenkins.war file to /opt/tomcat/webapps, then I do not ge the "is overlapped" message.

Can the message be safely ignored?

[unclejack]

@coderlol As far as I've seen, that warning had no side effect and it's also being printed on my system running Docker on AUFS.

I'll close this issue now. Please report back if you run into problems and you think they might be somehow associated with those warnings.

[damm]

+1 for this error; unfortunately it's actually blocking me.

I'm having containers fail silently during build on this.

Step 5 : RUN ./installer --dont-install-useful-gems --no-tcmalloc -a /usr
 ---> Running in 251cb17402ab

I'll try and figure out more information and open a new issue on this.

[mcobzarenco]

+1 I have the same problem as @damm

[damm]

@mcobzarenco you should try the btrfs storage engine (I adopted coreos) to deploy Docker with as I just found building with aufs to be a bit too buggy (too much of a time waste)

[mcobzarenco]

@damm Thanks for the suggestion, I'll give it a try today.

[coladict]

While our server's RAID was down we did not have this warning. I stopped all containers, synced the secondary drive and when I started the containers again, I started getting those warnings. It happens when they start on every boot, but not on every container. I can probably check which ones do it.