hadoop StatisticsFromAwsSdk 源码
haddop StatisticsFromAwsSdk 代码
文件路径：/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/statistics/StatisticsFromAwsSdk.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.s3a.statistics;
import java.time.Duration;
import org.apache.hadoop.fs.s3a.statistics.impl.AwsStatisticsCollector;
/**
* interface to receive statistics events from the AWS SDK
* by way of {@link AwsStatisticsCollector}.
*/
public interface StatisticsFromAwsSdk {
/**
* Record a number of AWS requests.
* @param count number of events.
*/
void updateAwsRequestCount(long count);
/**
* Record a number of AWS request retries.
* @param count number of events.
*/
void updateAwsRetryCount(long count);
/**
* Record a number of throttle exceptions received.
* @param count number of events.
*/
void updateAwsThrottleExceptionsCount(long count);
/**
* Record how long a request took overall.
* @param duration duration of operation.
*/
void noteAwsRequestTime(Duration duration);
/**
* Record how long a request took to execute on the
* client.
* @param duration duration of operation.
*/
void noteAwsClientExecuteTime(Duration duration);
/**
* Record how long a request took to marshall into
* XML.
* @param duration duration of operation.
*/
void noteRequestMarshallTime(Duration duration);
/**
* Record how long a request took to sign, including
* any calls to EC2 credential endpoints.
* @param duration duration of operation.
*/
void noteRequestSigningTime(Duration duration);
/**
* Record how long it took to process the response.
* @param duration duration of operation.
*/
void noteResponseProcessingTime(Duration duration);
}
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