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Posts by Yan Cui
Yan Cui
, Feb 15 2021
Automating Serverless Tasks with the Lumigo CLI
Here at Lumigo, our mission is to help customers succeed with serverless by solving the observability problem and letting them...
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Yan Cui
, Jan 18 2021
How to monitor and debug AppSync APIs
AWS AppSync is a fully managed GraphQL service that makes it easy for you to build scalable and performant GraphQL...
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Yan Cui
, Dec 01 2020
Package your Lambda function as a container image
Today, AWS announced another major feature to the Lambda platform: the option to package your code and dependencies as container...
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Yan Cui
, Nov 12 2020
Lambda Logs API: a new way to process Lambda logs in real-time
AWS released Lambda Extensions just over a month ago, and we explained what they are and why they matter. Today,...
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Yan Cui
, Oct 08 2020
AWS Lambda Extensions: What are they and why do they matter
There is a growing ecosystem of vendors that are helping AWS customers gain better observability into their serverless applications. All...
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Yan Cui
, Sep 20 2020
This is all you need to know about Lambda cold starts
So much has been written about Lambda cold starts. It’s easily one of the most talked-about and yet, misunderstood topics...
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Yan Cui
, Sep 03 2020
How to Debug Slow Lambda Response Times
When you build your application on top of Lambda, AWS automatically scales the number of “workers” (think containers) running your...
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Yan Cui
, Aug 17 2020
What alerts should you have for serverless applications?
A key metric for measuring how well you handle system outages is the Mean Time To Recovery or MTTR. It’s...
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Yan Cui
, Aug 12 2020
Debugging AWS Lambda Timeouts
Some time ago, an ex-colleague of mine at DAZN received an alert through PagerDuty. There was a spike in error...
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Yan Cui
, Jul 01 2020
How to Debug AWS Lambda Performance Issues
Ten years ago, Amazon found that every 100ms of latency would cost them roughly 1% in sales. This is a...
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Yan Cui
, Jun 16 2020
Unlocking new serverless use cases with EFS and Lambda
UPDATE 21/06/2020: following the official launch of this feature, we have performed more thorough performance testing to see how mounting...
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Yan Cui
, May 22 2020
A time machine for your env variables
One of the great things about Lumigo is that it records a lot of context about each Lambda invocation. This...
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Yan Cui
, Mar 12 2020
HTTP API goes GA today!
As you read this, API Gateway HTTP API is now Generally Available. This is an important milestone, and kudos to...
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Yan Cui
, Mar 05 2020
5 reasons why you should use EventBridge instead of SNS
SNS and SQS have been the goto options for AWS developers when it comes to service integration. However, since its...
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