Changes between Version 5 and Version 6 of UsersGuide

Timestamp:

Oct 15, 2012 3:41:30 PM (12 years ago)

Author:

Ted Faber

Comment:

--

UsersGuide

@@ -100 +100 @@
 A simple vizualization of the experiment is in {{{containers/visualization.png}}}.  This is annotated with node and network names as well as interface IP addresses.  The topology depiction [attachment:visualization-small.png above] is an example.  A [attachment:visualization.png larger version] is also attached.
 
-The {{{containers/hosts}}} file is a copy of the IP to hostname mapping found on each virtual machine in the topology.  It can be useful in converting IP addresses back to names.  It is installed in {{{/ext/hosts}}} or the equivalent on each machine.
+The {{{containers/hosts}}} file is a copy of the IP to hostname mapping found on each virtual machine in the topology.  It can be useful in converting IP addresses back to names.  It is installed in {{{/etc/hosts}}} or the equivalent on each machine.
+
+The two files {{{/var/containers/pid}}} and {{{/var/containers/eid}}} contain the project name and experiment name.  Scripts can make use of these.
 
 At this point, as with any DETER experiment, the topology does not have any resources attached.  To get the resources, swap the experiment in from the web interface or using the {{{swapexp}}} command.
@@ -161 +163 @@
 {{{
 #!/bin/sh
+
+STARTDIR="/proj/"`cat /var/containers/pid`"/exp/"`cat /var/containers/eid`"/startup"
+
+mkdir $STARTDIR
+date > $STARTDIR/`hostname`
+}}}
+
+Making that script the start command of all nodes will put the time that each local container came up in the the {{{startup}}} directory under the per-experiment directories.  For example, {{{n-0.example1.DeterTest}}} will create {{{/proj/DeterTest/exp/example1/startup/n-0}}}.  An experimenter can monitor that directory on {{{users}}} and know which nodes are up.
+