From 80aea56623c18a228b678bccfba975bfc0fcc706 Mon Sep 17 00:00:00 2001
From: David Kyle <david.kyle@elastic.co>
Date: Fri, 4 Jan 2019 12:44:58 +0000
Subject: [PATCH] [ML] ML BWC tests cannot run against pre-ML versions (#37136)

---
 .../xpack/restart/MlMigrationFullClusterRestartIT.java      | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/x-pack/qa/full-cluster-restart/src/test/java/org/elasticsearch/xpack/restart/MlMigrationFullClusterRestartIT.java b/x-pack/qa/full-cluster-restart/src/test/java/org/elasticsearch/xpack/restart/MlMigrationFullClusterRestartIT.java
index 779c942475fa9..59c634981d198 100644
--- a/x-pack/qa/full-cluster-restart/src/test/java/org/elasticsearch/xpack/restart/MlMigrationFullClusterRestartIT.java
+++ b/x-pack/qa/full-cluster-restart/src/test/java/org/elasticsearch/xpack/restart/MlMigrationFullClusterRestartIT.java
@@ -73,6 +73,12 @@ private void createTestIndex() throws IOException {
     }
 
     public void testMigration() throws Exception {
+        // v5.5.0 is the first version where ml jobs can be
+        // retained after upgrade
+        if (getOldClusterVersion().before(Version.V_5_5_0)) {
+            return;
+        }
+
         if (isRunningAgainstOldCluster()) {
             createTestIndex();
             oldClusterTests();