There are some problems with locking, but this is not one of them. Your example doesn't make sense to me, because you are asking to the same package twice - so it seems reasonable to me that cfengine would think it was unnecessary to do the same thing again. The two checks are identical?
M On Fri, 2005-11-11 at 16:40 -0600, Brendan Strejcek wrote: > cfengine locking can get in the way of package definitions. For example, > consider the following: > > ######################################################################## > > ==> main.cf <== > > #!/usr/sbin/cfagent -qvf > > control: > actionsequence = ( packages ) > > import: > /tmp/one.cf > /tmp/two.cf > > ==> /tmp/one.cf <== > > packages: > bash > pkgmgr=rpm > define=bash_pkg_installed > > alerts: > bash_pkg_installed:: > "one.cf: bash_pkg_installed class defined" > > ==> /tmp/two.cf <== > > packages: > bash > pkgmgr=rpm > define=bash_package_installed > > alerts: > bash_package_installed:: > "two.cf: bash_package_installed class defined" > > ######################################################################## > > When I run that, this is what happens: > > Installable classes = ( bash_pkg_installed bash_package_installed ) > ... > RPMCheckPackage(): Requested bash eq ANY > cfengine:: Nothing scheduled for packages.packages (0/1 minutes elapsed) > ... > --------------------------------------------------------------------- > Alerts > --------------------------------------------------------------------- > cfengine:: one.cf: bash_pkg_installed class defined > > We can see that the second class is not getting defined due to a lock. > Why is this bad? It means that any admin that defines a class like > this needs to understand the entire site config, or actions predicated > on their class may never occur. I suspect other sections may exhibit > similar behavior, but I have not tested it yet. > > Fundamentally, I think this is a problem of scope and namespaces. I > think that is one of the weakest elements of cfengine, so I hope it > is addressed in version 3. Namespaces are intimately connected with > reusability. > > Best, > Brendan > > -- > Senior System Administrator > The University of Chicago > Department of Computer Science > > http://www.cs.uchicago.edu/people/brendan > > http://people.cs.uchicago.edu/~brendan > > > _______________________________________________ > Help-cfengine mailing list > Help-cfengine@gnu.org > http://lists.gnu.org/mailman/listinfo/help-cfengine _______________________________________________ Help-cfengine mailing list Help-cfengine@gnu.org http://lists.gnu.org/mailman/listinfo/help-cfengine
