GitLab

- Not installing plabroot.tgz anymore
  - grrr, kept clobbering the one I was making by hand.  We should install
    and update this tarball out-of-band anyway

- Installs new fixsudo shell script.

Some PLAB dslice manager updates:

- in addition to asking the dslice agent (on plab) for a list of available
  nodes, we now also fping them all to weed out unresponsive ones.  One problem
  here is that several plab nodes block ICMP; could be solved by pinging with
  nmap (tries both a ICMP, and TCP ping).  This affects the plabdaemon getfree
  command, and subsequently which plab nodes appear as "up" in the DB

- Changed slice naming scheme:  we now append the experiment index onto the
  slice name to try to ensure uniqueness (emulab_<pid>_<eid>_<idx>)

- Modified plabnode to try to cope with flaky nodes - there is some retry
  code in there now

- Added the "fixsudo" shell script which is run very first as root (via the
  cumbersome "su" command) to fix sudoers for later sudo use on plab nodes.

Don't allow intraswitch links to vnodes on switches - they'll get
scored as direct links. Since LANs are now directly on switches, there
were situations where we could have scored the same link as either
direct or intraswitch, which results in two different scores. This can
cause those 'contact calfeld' warnings, and might have caused some
strange scoring fluxuations as assign ran.

When picking a link to a switch, for emulated links, pick the least
loaded link, not the one with the fewest users. This helps in situations
where the link bandwidths are heterogenous.

Change to make nodes with stale data unusable (give em a loadave of 999)

violations.

daemon.

is *not* a superset of emulab-active-users! If you want active *and*
recently active, then send email to both lists.

experiment action.

tear them down since os_setup has not tried to set them up yet.

Nice for subnodes.

about how to use them.

xterm will stay open, so that the user can figure out what's going
on.

pclasses seem to be broken.

Note: this only affects experiments with vodes.

do a lot more to plab nodes, so they might take longer.

1) put linktype in the node_auxtypes table instead of having separate classes
of vnodes (now they're all one type).

2) Code added to emulabify() to fix the sudoers file pre-overlay.
   - turns out that only "su" is available to supply initial root access

3) uncapped eligibility to allow all plab nodes to filter in.

Other minor things too.

out experiments.

Also added code to push the subtypes in the perm tables so I can stop
doing it by hand. Done badly though; needs cleanup.

sure they're within some tolerance of each other. Use this so that
cumulative float point errors don't cause us to spit out scary
looking false positive warnings.

Add plabnodes to stats gathering.

circumstances with vnodes, but I managed to run into it.

and push load data into the node_features table. Once every 5 minutes
from cron on boss.

turn on the 'unique' flag for widearea nodes.

but it's per node, not per type. Will initially be used to store
inforomation about planetlab nodes.

some reason, which is invisible to assign, that a node should never
be considered the same as another. This is for scoring, so that assign
doesn't prefer to give you 2 DSL nodes if you ask for 1 DSL and one
generic wide-area.

other, if both the feature and matching desire are found, their scores
are added together.

Additive feature names start with a '+'.

a pointer deref, but, thanks to the wonders of C++ operator
overloading, is actually a fairly slow function call.