oprofile in pt-stalk won't work with galera/pxc
This is how oprofile and its utils are invoked
if [ "$mysqld_path" -a -f "$mysqld_path" ]; then
--merge tgid \
The galera library is dlopened by wsrep as a plugin. However, I
think, invoking opreport as above won't involve those.
Speaking of which, I don't think any other plugins (which are similarly dlopened) will feature either (plugins like the PAM etc.).
So, this needs to be fixed - either in how this is invoked or