Alibaba Cloud SDK provides advanced settings for proxies, SSL authentication, timeouts, logging, and asynchronous calls. These settings help you optimize performance, strengthen security, and improve reliability in high-concurrency or network-restricted environments.
Proxy settings
Scenarios
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Restricted network access: If your application runs in an environment that requires a proxy server to reach external networks, such as an enterprise intranet or a firewall-restricted network, you can configure a proxy to access Alibaba Cloud services.
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Traffic monitoring: During development or testing, you can use a proxy to capture and analyze request traffic for troubleshooting.
Examples
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An application deployed on an enterprise intranet uses an HTTP or HTTPS proxy to access Alibaba Cloud services.
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Multiple applications in an enterprise share a proxy server that manages and routes requests to external services.
For more information, see Configure a proxy.
SSL authentication settings
Scenarios
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Network security: Verify SSL certificates in HTTPS requests to ensure secure communication.
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Disable authentication (not recommended): In some scenarios, such as environments that use self-signed certificates, you can temporarily disable SSL authentication.
Examples
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By default, SSL authentication is enabled to secure communication between your application and Alibaba Cloud.
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During development or debugging, you may need to disable SSL authentication to bypass certificate issues. Make sure that you re-enable SSL authentication in your production environment.
For more information, see Configure SSL authentication.
Timeout settings
Scenarios
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Network stability: When network latency is high or server responses are slow, a proper timeout prevents requests from hanging indefinitely.
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User experience: A proper timeout for user-facing applications prevents prolonged waits when a service is unavailable.
Examples
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If the network connection drops while uploading large files to OSS, a proper timeout terminates the stalled request so the user can retry the upload.
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For time-consuming API operations such as batch operations, a proper timeout prevents requests from waiting indefinitely.
For more information, see Configure a timeout period.
Log settings
Scenarios
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Record request and response details to help troubleshoot API failures such as signature errors and missing parameters.
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Analyze log data to monitor key metrics such as request duration and success rate, helping you identify performance issues.
Examples
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If creating Elastic Compute Service (ECS) instances fails, you can check the logs to verify whether the HTTPS request signature is valid and whether parameters are correctly configured.
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Identify performance bottlenecks by monitoring the duration of Object Storage Service (OSS) upload API operations.
For more information, see Configure a logger.
Asynchronous call settings
Scenarios
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High concurrency: When you need to process many concurrent tasks, asynchronous operations can significantly improve throughput.
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Non-blocking operations: For time-consuming operations, asynchronous calls keep the main thread responsive by running tasks without blocking.
Examples
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When creating multiple ECS instances, you can send requests asynchronously to reduce total wait time.
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When uploading a large number of files, you can use asynchronous operations to fully utilize the coroutine pool and increase throughput.
For more information, see Use the asynchronous calls feature.