X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/e7672a0b679659d6ba90d23b4e102fba747fa9ef..080c940d7a8134a6e277a53b7e45eb27e2b2c87f:/services/api/app/models/node.rb

diff --git a/services/api/app/models/node.rb b/services/api/app/models/node.rb
index 8eb40f9fbb..3d8b91b4b6 100644
--- a/services/api/app/models/node.rb
+++ b/services/api/app/models/node.rb
@@ -1,3 +1,7 @@
+# Copyright (C) The Arvados Authors. All rights reserved.
+#
+# SPDX-License-Identifier: AGPL-3.0
+
 require 'tempfile'
 
 class Node < ArvadosModel
@@ -102,27 +106,7 @@ class Node < ArvadosModel
       end
     end
 
-    # Assign slot_number
-    if self.slot_number.nil?
-      while true
-        n = self.class.available_slot_number
-        if n.nil?
-          raise "No available node slots"
-        end
-        self.slot_number = n
-        begin
-          self.save!
-          break
-        rescue ActiveRecord::RecordNotUnique
-          # try again
-        end
-      end
-    end
-
-    # Assign hostname
-    if self.hostname.nil? and Rails.configuration.assign_node_hostname
-      self.hostname = self.class.hostname_for_slot(self.slot_number)
-    end
+    assign_slot
 
     # Record other basic stats
     ['total_cpu_cores', 'total_ram_mb', 'total_scratch_mb'].each do |key|
@@ -136,8 +120,30 @@ class Node < ArvadosModel
     save!
   end
 
+  def assign_slot
+    return if self.slot_number.andand > 0
+    while true
+      self.slot_number = self.class.available_slot_number
+      if self.slot_number.nil?
+        raise "No available node slots"
+      end
+      begin
+        save!
+        return assign_hostname
+      rescue ActiveRecord::RecordNotUnique
+        # try again
+      end
+    end
+  end
+
   protected
 
+  def assign_hostname
+    if self.hostname.nil? and Rails.configuration.assign_node_hostname
+      self.hostname = self.class.hostname_for_slot(self.slot_number)
+    end
+  end
+
   def self.available_slot_number
     # Join the sequence 1..max with the nodes table. Return the first
     # (i.e., smallest) value that doesn't match the slot_number of any