Open Stack

On Tue, 17 Oct 2017, at 14:15, LinziWang at itri.org.tw wrote:
> and in the /%24LOG_PATH/logs/devstack-early.txt file,
> it shows
> 2017-10-17 02:49:21.324 | + lib/etcd3:install_etcd3:109:  sudo cp
> /opt/stack/new/devstack/files/etcd-v3.1.10-linux-amd64/etcd
> /opt/stack/new/bin/etcd
> 2017-10-17 02:49:21.330 | cp: cannot create regular file
> '/opt/stack/new/bin/etcd': Text file busy
> 
> Can anyone help me to resolve this issue?
> Why the file is busy???
> 

The file is busy because the etcd binary at /opt/stack/new/bin/etcd is
currently being executed and therefore it cannot be replaced, as it has
an open handler on that file.

You can replicate this locally with a different binary, like this (using
the watch command):

$ cp /usr/bin/watch .
$ ./watch ls &
$ cp /usr/bin/watch .
cp: overwrite './watch'? y
cp: cannot create regular file './watch': Text file busy


Not that this is the right solution, but you can move it and then put
the new file in its place (the etcd will continue to run).

For example:

$ cp /usr/bin/watch .
$ ./watch ls &
$ mv watch watch-old
$ cp /usr/bin/watch .
$ ls watch*
watch  watch-old


So, why is /opt/stack/new/bin/etcd already running on that host?...

-c