[GitHub] [hadoop] mehakmeet commented on a change in pull request #1899: HADOOP-16914 Adding Output Stream Counters in ABFS

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mehakmeet commented on a change in pull request #1899: HADOOP-16914 Adding Output Stream Counters in ABFS
URL: https://github.com/apache/hadoop/pull/1899#discussion_r402095177
 
 

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 File path: hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/services/AbfsOutputStreamStatistics.java
 ##########
 @@ -0,0 +1,78 @@
+/**
+ * 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
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * 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.fs.azurebfs.services;
+
+import org.apache.hadoop.classification.InterfaceStability;
+
+/**
+ * Interface for {@link AbfsOutputStream} statistics.
+ */
+@InterfaceStability.Unstable
+public interface AbfsOutputStreamStatistics {
+
+  /**
+   * Number of bytes to be uploaded.
+   *
+   * @param bytes number of bytes to upload
+   */
+  void bytesToUpload(long bytes);
+
+  /**
+   * Records a successful upload and the number of bytes uploaded.
+   *
+   * @param bytes number of bytes that were successfully uploaded
+   */
+  void uploadSuccessful(long bytes);
+
+  /**
+   * Records that upload is failed and the number of bytes.
+   *
+   * @param bytes number of bytes that failed to upload
+   */
+  void uploadFailed(long bytes);
+
+  /**
+   * Time spent in waiting for tasks to be completed in the blocking Queue.
 
 Review comment:
   explain more

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