Ensure all backup jobs sees activity

check_lysrdiff

@@ -157,6 +157,19 @@ then
   set_state 1 WARNING "No activity."
 fi
 
+if [ -f $BASE/lysrdiff/tasks ]
+then
+    TASKS=`wc -l < $BASE/lysrdiff/tasks`
+    PERF="$PERF tasks=$TASKS"
+    if [ $TASKS -gt $ACTIVITY ]
+    then
+	set_state 1 WARNING "$TASKS jobs defined, but only $ACTIVITY are active."
+    fi
+else
+    set_state 2 CRITICAL "$BASE/lysrdiff/tasks is missing."
+    PERF="$PERF tasks=0"
+fi
+
 if [ -z "$message" ]
 then
     set_state 0 OK "all ok."