Change vnode isalive time to 5 minutes (from 10).

sql/sitevars-create.sql

@@ -33,7 +33,7 @@ INSERT INTO sitevariables VALUES ('watchdog/interval','30','60','Interval in min
 INSERT INTO sitevariables VALUES ('watchdog/ntpdrift',NULL,'240','Interval in minutes between reporting back NTP drift changes (0==never report)',0);
 INSERT INTO sitevariables VALUES ('watchdog/cvsup',NULL,'720','Interval in minutes between remote node checks for software updates (0==never check)',0);
 INSERT INTO sitevariables VALUES ('watchdog/isalive/local',NULL,'3','Interval in minutes between local node status reports (0==never report)',0);
-INSERT INTO sitevariables VALUES ('watchdog/isalive/vnode',NULL,'10','Interval in minutes between virtual node status reports (0==never report)',0);
+INSERT INTO sitevariables VALUES ('watchdog/isalive/vnode',NULL,'5','Interval in minutes between virtual node status reports (0==never report)',0);
 INSERT INTO sitevariables VALUES ('watchdog/isalive/plab',NULL,'10','Interval in minutes between planetlab node status reports (0==never report)',0);
 INSERT INTO sitevariables VALUES ('watchdog/isalive/wa',NULL,'1','Interval in minutes between widearea node status reports (0==never report)',0);
 INSERT INTO sitevariables VALUES ('watchdog/isalive/dead_time','10','120','Time, in minutes, after which to consider a node dead if it has not checked in via tha watchdog',0);

sql/updates/4/394

+#
+# Shorten isalive for vnodes.
+#
+use strict;
+use libdb;
+
+sub DoUpdate($$$)
+{
+    my ($dbhandle, $dbname, $version) = @_;
+
+    DBQueryFatal("UPDATE sitevariables SET ".
+		 "  defaultvalue='5' ".
+		 "WHERE name='watchdog/isalive/vnode'");
+
+    return 0;
+}
+1;
+
+# Local Variables:
+# mode:perl
+# End: