Do not update history if reboot generation is unchanged

1 files changed, 6 insertions, 3 deletions

diff --git a/node-repository/src/main/java/com/yahoo/vespa/hosted/provision/Node.java b/node-repository/src/main/java/com/yahoo/vespa/hosted/provision/Node.java
index 9cba823500b..d9e0e4292e8 100644
--- a/node-repository/src/main/java/com/yahoo/vespa/hosted/provision/Node.java
+++ b/node-repository/src/main/java/com/yahoo/vespa/hosted/provision/Node.java
@@ -468,10 +468,13 @@ public final class Node implements Nodelike {
 
     /** Returns a copy of this node with the current reboot generation set to the given number at the given instant */
     public Node withCurrentRebootGeneration(long generation, Instant instant) {
-        if (generation < status.reboot().current())
+        if (generation == status.reboot().current()) {
+            return this; // No change
+        }
+        if (generation < status.reboot().current()) {
             throw new IllegalArgumentException("Cannot set reboot generation to " + generation +
-                    ": lower than current generation: " + status.reboot().current());
-
+                                               ": lower than current generation: " + status.reboot().current());
+        }
         Status newStatus = status().withReboot(status().reboot().withCurrent(generation));
         History newHistory = history.with(new History.Event(History.Event.Type.rebooted, Agent.system, instant));
         return this.with(newStatus).with(newHistory);