Disable Logback log files in containers
We found the spring boot project running containers will keep restarting after some time, maybe 10 days, maybe 5 days. The root cause is spring logback is writing log files into /tmp/ directory as...
Category: Java Architecture
Be careful, when you are using CrudReporsitory.save() in JPA
in some JPA project, CrudReporsitory.save() is used this way:
|
1 |
repository.save(oldtEntity) |
sometime the oldEntity will be set with new properties, but sometimes you will find that the new assigned ID has not been set to...
The message is xxx bytes when serialized which is larger than the maximum request size you have configured with the max.request.size configuration.
org.apache.kafka.common.errors.RecordTooLargeException: The message is xxxx bytes when serialized which is larger than the maximum request size you have configured with the max.request.size configuration. How to fix this when you are using confluent Kafka docker....
OAuth 2 Password Credentials&Client Credentials
In microservices, the front service should use the Password Credentials to let users log in with the web browser, and other services in the background should use Client Credentials.
Nested Transaction Implementation
There are two classes OrderService and OrderRepository, OrderRepository will be called inside of OrderService. OrderRepository inserts one record of order into the database. My Purpose: When an exception happens in OrderRepository or OrderService, the transaction will rollback and...
[repost] Continuous Integration: automating development processes and best practices
To illustrate where Continuous Integration fits into modern environments, let’s briefly look at a typical software development workflow. Most modern software projects, whether they be websites, smartphone apps, or desktop applications, generally follow a...
[Repost] Netflix Tips for High Availability, 125 Million subscribers
Over the past four years, Netflix has gone from less than 50 Million subscribers to 125 Million subscribers. While this kind of growth has caused us no shortage of scaling challenges, we actually managed...
Design Log Monitor System Prototype — 2. Spring Boot
Continue with Design Log Monitor System Prototype For Spring MVC Practice 1. Log format You can define yours own team log format. Name Remark requestID uuid timestamp log record time level log level message log...
Design Log Monitor System Prototype — 1. Spring MVC
Background In this article, a log monitor system is designed for one classic monolithic Spring MVC project, which contains three module layers: Controller, Service, and Repository. Requirement All system exceptions should be recorded. Pretty...
