[GitHub] [hadoop] bharatviswa504 commented on a change in pull request #972: HDDS-1601. Implement updating lastAppliedIndex after buffer flush to OM DB.

[GitBox <gi...@apache.org>]

bharatviswa504 commented on a change in pull request #972: HDDS-1601. Implement updating lastAppliedIndex after buffer flush to OM DB.
URL: https://github.com/apache/hadoop/pull/972#discussion_r294028789
 
 

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 File path: hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/ratis/OzoneManagerRatisSnapshot.java
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 @@ -0,0 +1,33 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with this
+ * work for additional information regarding copyright ownership.  The ASF
+ * licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * <p>
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package org.apache.hadoop.ozone.om.ratis;
+
+/**
+ * Functional interface for OM RatisSnapshot.
+ */
+
+public interface OzoneManagerRatisSnapshot {
+
+  /**
+   * Update lastAppliedIndex with the specified value in OzoneManager
+   * StateMachine.
+   * @param lastAppliedIndex
+   * @return lastAppliedIndex
+   */
+  long updateLastAppliedIndex(long lastAppliedIndex);
+}
 
 Review comment:
   This is added to make easy for testing purposes in UT.

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