Changes between Version 18 and Version 19 of Software/eTutorialSupport

Timestamp:

Jun 28, 2016, 5:45:16 PM (8 years ago)

Author:

ffund01

Comment:

—

Software/eTutorialSupport

@@ -124 +124 @@
 === Scheduler utility script ===
 
+Retrieve the scheduler utility script with
+
+{{{
+wget http://witestlab.poly.edu/repos/misc/omf
+}}}
+
+then make it executable
+
+{{{
+chmod a+x omf
+}}}
+
+You may run it locally ({{{.omf}}}) or put it in {{{/usr/local/bin}}} or similar location.
+
 === Enabling/disabling "scheduled" experiments ===
 
-The easiest way to turn the scheduler on and off is to put the scheduler utility script in {{{/usr/local/bin/omf}}}. When you want it to be turned on, make it executable:
+The easiest way to turn the scheduler on and off is to put the scheduler utility script in {{{/usr/local/bin/omf}}} (assuming the "real" {{{omf}}} is in {{{/usr/bin}}}). When you want it to be turned on, make it executable:
 
 {{{
@@ -151 +165 @@
 {{{
 defProperty('prefix', '', "Prefix for HRN")
-defProperty('suffix', '.grid.orbit-lab.org', "Suffix for HRN")
+defProperty('suffix', '.grid.orbit-lab.org', "Suffix for HRN")another
 defProperty('node', 'node3-19', "ID of sender node, will be passed by job scheduler")
 
@@ -160 +174 @@
 }}}
 
+To report status to the dashboard, the OMF experiment script should define an {{{EXP_SUCCESS}}} event. For example:
+
+{{{
+require 'sqlite3' 
+# OMF 5.4.1+ no longer has the 'ms' to access experiment data so we need to use
+# this workaround, which is not so nice because of database locking :(
+defEvent(:EXP_SUCCESS, 5) do |event|
+  sq3Filename= "/var/lib/oml2/#{Experiment.ID}.sq3" 
+  if File.file?(sq3Filename)
+    db = SQLite3::Database.new(sq3Filename)
+    begin
+      if db.get_first_value( "SELECT COUNT(seq_no) FROM otr2_udp_in;" ).to_i > 10
+        event.fire(:comment=>"Received at least 10 measurements",:node=>"#{property.node.value}")
+      end
+    rescue
+      # Do nothing in case database is locked or table doesn't exist yet
+    end
+  end
+end
+
+onEvent(:EXP_SUCCESS) do |event|
+  info "Experiment success (measured ten incoming UDP packets)"
+end
+}}}