AWS CloudWatch Log Insight 和 AWS Athena 都可用于日志分析，但在功能和使用方式上有一些不同。

AWS CloudWatch Log Insight 可以帮助您分析和解决应用程序和系统问题，它可以结合使用 Metric Filter 和 Query 语言，快速搜索、过滤和分析日志数据。作为一项托管服务，您可以非常方便地使用 AWS 管理控制台来管理日志和执行分析操作。

以下是一个使用 AWS CloudWatch Logs 和 CloudWatch Log Insight 的 Python 代码示例：

import boto3

# Create CloudWatch client
cloudwatch_logs = boto3.client('logs')

# Define Metric Filter
log_group_name = 'my-log-group'
filter_name = 'my-metric-filter'
filter_pattern = '[ip, user_agent, response_code, bytes_sent, time_taken]'
metric_name = 'MyMetric'
metric_namespace = 'MyNamespace'
metric_value = '1'

# Create Metric Filter
response = cloudwatch_logs.put_metric_filter(
    logGroupName=log_group_name,
    filterName=filter_name,
    filterPattern=filter_pattern,
    metricTransformations=[
        {
            'metricName': metric_name,
            'metricNamespace': metric_namespace,
            'metricValue': metric_value
        },
    ]
)

# Create CloudWatch Dashboard
dashboard_name = 'MyDashboard'
dashboard_body = '''
{
    "widgets": [
        {
            "type": "metric",
            "x": 0,
            "y": 0,
            "width": 6,
            "height": 6,
            "properties": {
                "metrics": [
                    [
                        "MyNamespace",
                        "MyMetric",
                        "log_group",
                        "my-log-group",
                        "MetricFilterName",
                        "my-metric-filter"
                    ]
                ],
                "period": 300,
                "stat": "Sum",
                "region": "us-east-1",
                "title": "My Dashboard"
            }
        }
    ]
}
'''

response = cloudwatch_logs.put_dashboard(
    dashboardName=dashboard_name,
    dashboardBody=dashboard_body
)

# Query Log Insights
query = 'fields @timestamp, @message | sort @timestamp desc | limit 10'
response = cloudwatch_logs.start_query(
    logGroupName=log_group_name,
    startTime=int((time.time() - 3600) * 1000),
    endTime=int(time.time() * 1000),
    queryString=query,
    limit=10
)
query_id = response['queryId']

# Get Query