From 4324e874ae58774fb3b0af98907123b7e6317b6f Mon Sep 17 00:00:00 2001
From: Sivabalan Narayanan <n.siva.b@gmail.com>
Date: Tue, 8 Mar 2022 21:04:42 -0800
Subject: [PATCH] [HUDI-3587] Making SupportsUpgradeDowngrade serializable
 (#4991)

---
 .../apache/hudi/table/upgrade/SupportsUpgradeDowngrade.java   | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/hudi-client/hudi-client-common/src/main/java/org/apache/hudi/table/upgrade/SupportsUpgradeDowngrade.java b/hudi-client/hudi-client-common/src/main/java/org/apache/hudi/table/upgrade/SupportsUpgradeDowngrade.java
index 5e6b9db91..a30396b63 100644
--- a/hudi-client/hudi-client-common/src/main/java/org/apache/hudi/table/upgrade/SupportsUpgradeDowngrade.java
+++ b/hudi-client/hudi-client-common/src/main/java/org/apache/hudi/table/upgrade/SupportsUpgradeDowngrade.java
@@ -23,10 +23,12 @@ import org.apache.hudi.common.engine.HoodieEngineContext;
 import org.apache.hudi.config.HoodieWriteConfig;
 import org.apache.hudi.table.HoodieTable;
 
+import java.io.Serializable;
+
 /**
  * Interface for engine-specific logic needed for upgrade and downgrade actions.
  */
-public interface SupportsUpgradeDowngrade {
+public interface SupportsUpgradeDowngrade extends Serializable {
   /**
    * @param config  Write config.
    * @param context {@link HoodieEngineContext} instance to use.