Hello, I just added a new brick and then rebalanced. After I did that, I had some strange behavior on our cluster. I was using a python script that did this on some nodes. import matplotlib ? ImportError:libpng16.so.16: cannot open shared object file: No such file or directory Which is weird because I listed it on the master node and it was there. I then logged in directly to each node that was ?missing? the file and sure enough I got the same error. However, after I did: $ls -l /mypython/lib/path/libpng16.so.16 /mypython/lib/path/libpng16.so.16 -> libpng16.so.16.22.0 I tried this script again and it worked! So this issue was just resolved by ls?ing the ?missing? file. Is there a glusterfs explanation for this? Why is the file ?missing? until I ask the shell to ls the file. These nodes just mount my volume using mount -t glusterfs mymainnode:/brick, nothing too weird. Jordan -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://www.gluster.org/pipermail/gluster-users/attachments/20170107/8cfc23a6/attachment.html>