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/*
 * Copyright 2011-2016 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"). You may not
 * use this file except in compliance with the License. A copy of the License is
 * located at
 * 
 * http://aws.amazon.com/apache2.0
 * 
 * or in the "license" file accompanying this file. This file 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.
 */

/**
 * 

* You can use Amazon CloudWatch Logs to monitor, store, and access your log * files from Amazon Elastic Compute Cloud (Amazon EC2) instances, Amazon * CloudTrail, or other sources. You can then retrieve the associated log data * from CloudWatch Logs using the Amazon CloudWatch console, the CloudWatch Logs * commands in the AWS CLI, the CloudWatch Logs API, or the CloudWatch Logs SDK. *

*

* You can use CloudWatch Logs to: *

*
    *
  • *

    * Monitor Logs from Amazon EC2 Instances in Real-time: You can use * CloudWatch Logs to monitor applications and systems using log data. For * example, CloudWatch Logs can track the number of errors that occur in your * application logs and send you a notification whenever the rate of errors * exceeds a threshold you specify. CloudWatch Logs uses your log data for * monitoring; so, no code changes are required. For example, you can monitor * application logs for specific literal terms (such as * "NullReferenceException") or count the number of occurrences of a literal * term at a particular position in log data (such as "404" status codes in an * Apache access log). When the term you are searching for is found, CloudWatch * Logs reports the data to a Amazon CloudWatch metric that you specify. *

    *
  • *
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    * Monitor Amazon CloudTrail Logged Events: You can create alarms in * Amazon CloudWatch and receive notifications of particular API activity as * captured by CloudTrail and use the notification to perform troubleshooting. *

    *
  • *
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    * Archive Log Data: You can use CloudWatch Logs to store your log data * in highly durable storage. You can change the log retention setting so that * any log events older than this setting are automatically deleted. The * CloudWatch Logs agent makes it easy to quickly send both rotated and * non-rotated log data off of a host and into the log service. You can then * access the raw log data when you need it. *

    *
  • *
*/ package com.amazonaws.services.logs;




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