redsanket commented on a change in pull request #28412:
URL: https://github.com/apache/spark/pull/28412#discussion_r437780461



##########
File path: 
core/src/main/scala/org/apache/spark/deploy/history/FsHistoryProvider.scala
##########
@@ -1167,6 +1172,17 @@ private[history] class FsHistoryProvider(conf: 
SparkConf, clock: Clock)
     // At this point the disk data either does not exist or was deleted 
because it failed to
     // load, so the event log needs to be replayed.
 
+    // If hybrid store is enabled, try it first.
+    if (hybridStoreEnabled) {
+      try {
+        return createHybridStore(dm, appId, attempt, metadata)
+      } catch {
+        case e: Exception =>
+          logInfo(s"Failed to create hybrid store for 
$appId/${attempt.info.attemptId}." +

Review comment:
       warn seems to be appropriate here however




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