hadoop AbfsOutputStreamStatistics 源码
haddop AbfsOutputStreamStatistics 代码
文件路径：/hadoop-tools/hadoop-azure/src/main/java/org/apache/hadoop/fs/azurebfs/services/AbfsOutputStreamStatistics.java
/**
* 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;
import org.apache.hadoop.fs.statistics.DurationTracker;
import org.apache.hadoop.fs.statistics.IOStatistics;
import org.apache.hadoop.fs.statistics.IOStatisticsSource;
import org.apache.hadoop.fs.store.BlockUploadStatistics;
/**
* Interface for {@link AbfsOutputStream} statistics.
*/
@InterfaceStability.Unstable
public interface AbfsOutputStreamStatistics extends IOStatisticsSource,
BlockUploadStatistics {
/**
* 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.
* @return instance of the DurationTracker that tracks the time for waiting.
*/
DurationTracker timeSpentTaskWait();
/**
* Number of times task queue is shrunk.
*/
void queueShrunk();
/**
* Number of times buffer is written to the service after a write operation.
*/
void writeCurrentBuffer();
/**
* Get the IOStatisticsStore instance from AbfsOutputStreamStatistics.
* @return instance of IOStatisticsStore which extends IOStatistics.
*/
IOStatistics getIOStatistics();
/**
* Method to form a string of all AbfsOutputStream statistics and their
* values.
*
* @return AbfsOutputStream statistics.
*/
@Override
String toString();
}
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