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weeks)

desire for 'hosts-<type>', where <type> is the type of its child node.
This helps assign, because it can now limit the number of places to
try assigning the host, and it means that we can give the hosts this
feature, so that they don't get used for other purposes. For example,
we can give the IXP-hosting nodes the feature 'hosts-ixp-bv' with
weight 1, and they will never get used for anything but IXP hosting.

This means that the node_type_features (or just node_features) table
must now have hosts-<type> entires to work correctly.

put:
$node add-desire desire weight

This will end up in the virt_node_desires table. assign_wrapper now
puts the desires from this table into the top file.

multiple desires for each vnode.

In particular, this keeps the ixp host nodes from showing up.

Needs eyeballing & checking after installation.

into assign.

from my devel tree).

does the daemon.

is going out.

killvserver() and getanyppid() which caused vnodesetup to fail when it
shouldn't have.

We have talked about these in the past, and I just happened to be thinking
about it this morning.

trying to bring them back from the dead periodically by trying to
instantiate a vserver/vnode on them, and then tearing it down. If we
can do that, then the node is usable, and it gets moved back into the
normal holding experiment so that ptopgen will add it to ptop files.

This deamon is not turned on yet; waiting for other little bits and
pieces to be done.

There is an equiv change in os_setup that moves physnodes into hwdown
when a setup on a vnode fails.

Lbs

a little html.  Ref'ed from news page.  Installed om 9/22.

assign can attempt to spread an experimenter's nodes across sites.

tmcd (which is bad, since tying up the tmcd threads blocks all nodes
in the testbed). The old functionality is left in tmcd for now.

On the server side, a new web page (www/spewrpmtar.php3) receives a
request for a file, along with the nodeid (pcXXX) making the request,
and the secret key that is generated for each new experiment and
transfered to the node via tmcd. If the key matches, the operation is
handed off to tbsetup/spewrpmtar.in which verifies that the file is in
the list of rpm/tar files for that node, and then spits it out to
stdout. The web page uses fpassthru() to send the file out to the
client. The client is using wget, and is required to use https (the
web page checks).

At present, the external script is run as the creator of the
experiment, and gid of the experiment. Perhaps this is not a good
idea. In any event, the file must be in the list of rpm/tarfiles,
either owned by the experiment creator or with a group of the
experiment, and the file must reside in either /proj or /groups.
I use the realpath() function to make sure there are no symlink tricks
pointing to outside those filesystems. I use the standard NFS read goo to
prevent transient mount problems that we all know and love.

tmcd (which is bad, since tying up the tmcd threads blocks all nodes
in the testbed). The old functionality is left in tmcd for now.

On the server side, a new web page (www/spewrpmtar.php3) receives a
request for a file, along with the nodeid (pcXXX) making the request,
and the secret key that is generated for each new experiment and
transfered to the node via tmcd. If the key matches, the operation is
handed off to tbsetup/spewrpmtar.in which verifies that the file is in
the list of rpm/tar files for that node, and then spits it out to
stdout. The web page uses fpassthru() to send the file out to the
client. The client is using wget, and is required to use https (the
web page checks).

At present, the external script is run as the creator of the
experiment, and gid of the experiment. Perhaps this is not a good
idea. In any event, the file must be in the list of rpm/tarfiles,
either owned by the experiment creator or with a group of the
experiment, and the file must reside in either /proj or /groups.
I use the realpath() function to make sure there are no symlink tricks
pointing to outside those filesystems. I use the standard NFS read goo to
prevent transient mount problems that we all know and love.

nodetypeXpid_permissions table, since most users will be confused
to see free PCs that they cannot actually use.

This query is starting to become a bit complicated to be doing on
every page.

actually finding the youngest.

Luckily, it was not causing timeouts that were too short, only
timeouts that were too long.

causing problems.  Will investigate tomorrow.

finds that the pid returned from wait() doesn't match the one returned
from fork() earlier - this shouldn't happen, but it is.  I am checking for
errors - parhaps I'm missing something though.  This affects plabnode free
in vnode_setup since it vnode_setup doesn't fork when it runs this.

 - now creates <OBJROOT>/tmcd/plab/GNUmakefile for building the
   plab rootball from the source tree.  Not run or installed by
   default.

Updated vnode_setup to fork+exec plabnode (alloc|free) rather than invoking
it with system().  Now when the parent receives a SIGTERM from its parent
(the top-level vnode_setup), it will kill off it's plabnode child process before
exiting itself.  invocation of plabnode is now done via the plabnode()
function.  Needs some commenting.

Tested thoroughly.

 - regexp that matched the slice user wasn't working now that we're only
   looking for emulab_<exp_index>.  Witholding this change from libplab.py
   for now until we push out a new tarball with this file