diff --git a/x-pack/plugin/ilm/qa/multi-node/src/javaRestTest/java/org/elasticsearch/xpack/ilm/actions/DownsampleActionIT.java b/x-pack/plugin/ilm/qa/multi-node/src/javaRestTest/java/org/elasticsearch/xpack/ilm/actions/DownsampleActionIT.java
index 2e61b6e978b61..c44c15f7e9949 100644
--- a/x-pack/plugin/ilm/qa/multi-node/src/javaRestTest/java/org/elasticsearch/xpack/ilm/actions/DownsampleActionIT.java
+++ b/x-pack/plugin/ilm/qa/multi-node/src/javaRestTest/java/org/elasticsearch/xpack/ilm/actions/DownsampleActionIT.java
@@ -337,9 +337,6 @@ public void testTsdbDataStreams() throws Exception {
         rolloverMaxOneDocCondition(client(), dataStream);
 
         String rollupIndex = waitAndGetRollupIndexName(client(), backingIndexName, fixedInterval);
-        if (rollupIndex == null) {
-            logger.warn("explain:" + explainIndex(client(), backingIndexName));
-        }
         assertNotNull(String.format(Locale.ROOT, "Cannot retrieve rollup index [%s]", rollupIndex), rollupIndex);
         assertBusy(() -> assertTrue("Rollup index does not exist", indexExists(rollupIndex)), 30, TimeUnit.SECONDS);
         assertBusy(() -> assertFalse("Source index should have been deleted", indexExists(backingIndexName)), 30, TimeUnit.SECONDS);
@@ -605,7 +602,7 @@ public void testDownsampleTwiceSameInterval() throws Exception {
      * @return the name of the rollup index for a given index, null if none exist
      */
     public String waitAndGetRollupIndexName(RestClient client, String originalIndexName, DateHistogramInterval fixedInterval)
-        throws InterruptedException {
+        throws InterruptedException, IOException {
         final String[] rollupIndexName = new String[1];
         waitUntil(() -> {
             try {
@@ -615,7 +612,15 @@ public String waitAndGetRollupIndexName(RestClient client, String originalIndexN
                 return false;
             }
         }, 120, TimeUnit.SECONDS); // High timeout in case we're unlucky and end_time has been increased.
-        logger.info("--> original index name is [{}], rollup index name is [{}]", originalIndexName, rollupIndexName[0]);
+        if (rollupIndexName[0] == null) {
+            logger.warn(
+                "--> original index name is [{}], rollup index name is NULL, possible explanation: {}",
+                originalIndexName,
+                explainIndex(client(), originalIndexName)
+            );
+        } else {
+            logger.info("--> original index name is [{}], rollup index name is [{}]", originalIndexName, rollupIndexName[0]);
+        }
         return rollupIndexName[0];
     }