In the process of our development, we often encounter situations where scheduled tasks are not executed as expected. In the Linux system, timing tasks are generally implemented by the system Crontab. This article discusses how to judge whether the Crontab is running normally.
The self-built email service is not limited by the amount of emails sent, and the cost of sending emails in batches is lower, but the deployment is relatively complicated and it is easy to go into the trash. However, more and more service providers have already developed products that support one-click deployment, which greatly reduces the difficulty of deployment and use.
For the logging module, even if it is simple to use, you need to define the format yourself. Here is a more elegant, efficient and concise third-party module: loguru
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OpenResty is a high-performance web platform based on Nginx and Lua. The access layer caching technology is to use OpenResty technology for secondary development in Lua language
When we use kind K8s to create various objects, the default user is the admin user, which has all the permissions to manage the cluster. In a real multi-user scenario, we cannot all use the admin user, and we need to assign appropriate permissions to different users according to the situation. .
Fix Elasticsearch log4j vulnerability in 3 steps
How to use Terraform to create Amazon ECS and Load Balancer, with detailed steps and screenshot demonstrations
As an AWS security best practice, it's best to have narrow-scoped IAM policies so that users are only authorized to perform actions on the resources they expect. This is even more important when you plan to authorize users to run some code in AWS services (for example, in a lambda function to access other resources). In this case, IAM provides a way to standardize the roles that authorized users can grant to AWS services: IAM PassRole
Recently, I am deploying a gateway system based on `kong`. The default errors of `kong` and the prompts returned by plug-ins in `kong` do not conform to the development unified specification.
Why do you need distributed locks? Lock uid, prevent repeated orders, lock inventory, prevent oversold, lock account, prevent concurrent operations...etc
Explain in detail what CORS is actually doing, and master the front-end and back-end configuration of CORS parameters, so that you don't need to search for CORS in the future, but you can configure it according to your own needs
There are many WeChat platforms involved in WeChat Pay. Moreover, the official documents for WeChat access are messy, and there is no good description of the access process.
sql optimization is a hot topic that everyone is concerned about. Whether you are in an interview or at work, you are likely to encounter
indices should be either on cpu or on the same device as the indexed tensor (cpu)
Apikey needs to be applied for. Apikey is a parameter that is needed to call those interfaces in etherscan. It needs you to apply for it and you can get it after registering an account. Each account holds up to 3 tokens, request API service service, only one of them is required
