HDFS-8189. ClientProtocol#createErasureCodingZone API was wrongly annotated as Idempotent (Contributed by Vinayakumar B)

hadoop-hdfs-project/hadoop-hdfs/CHANGES-HDFS-EC-7285.txt

@@ -136,4 +136,7 @@
     striped layout (Zhe Zhang)
 
     HDFS-8230. Erasure Coding: Ignore DatanodeProtocol#DNA_ERASURE_CODING_RECOVERY 
-    commands from standbynode if any (vinayakumarb)
+    commands from standbynode if any (vinayakumarb)
+
+    HDFS-8189. ClientProtocol#createErasureCodingZone API was wrongly annotated
+    as Idempotent (vinayakumarb)

hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/protocol/ClientProtocol.java

@@ -1363,14 +1363,6 @@ public interface ClientProtocol {
   public BatchedEntries<EncryptionZone> listEncryptionZones(
       long prevId) throws IOException;
 
-  /**
-   * Create an erasure coding zone with specified schema, if any, otherwise
-   * default
-   */
-  @Idempotent
-  public void createErasureCodingZone(String src, ECSchema schema)
-      throws IOException;
-
   /**
    * Set xattr of a file or directory.
    * The name must be prefixed with the namespace followed by ".". For example,
@@ -1466,6 +1458,14 @@ public interface ClientProtocol {
   @Idempotent
   public EventBatchList getEditsFromTxid(long txid) throws IOException;
 
+  /**
+   * Create an erasure coding zone with specified schema, if any, otherwise
+   * default
+   */
+  @AtMostOnce
+  public void createErasureCodingZone(String src, ECSchema schema)
+      throws IOException;
+
   /**
    * Gets the ECInfo for the specified file/directory
    *