Tag: scheduler

Schedule tasks are called twice with the @SnapLock annotation

java multiple-instances scheduler spring-boot

I want only one schedule method to work for many instances. I added the snap-scheduler to my project, and after that I deployed two different instances to the railway. And two entries about the execution of my method are added to the snap_lock table. Сan you explain where I went wrong? It`s scheduler config: It`s method with @SnapLock and @Scheduled

Java Scheduler to Mail

backend email java scheduler spring

Given that I have two scheduled component classes uploading files respectively. I created a sending email method for each of them in order to send a reminder email to myself in case any uploading exceptions happened. the flow like this: Scheduler One — if exception during uploading —> sending a email after exception Scheduler Two — if exception during uploading

Spring Boot StackOverFlowError : Null

java scheduler spring spring-boot

I have a problem when I want save repository by foreach loop . By Foreach loop user come and save it to another entity User.class public class Attendance { } User.class This is user class of User Entity Error show :: java.lang.StackOverflowError: null Answer Mixing what I saw in your code and what you said in comments I found the

Scheduler not running in Spring Boot

java scheduler spring-boot

I have created a Spring Boot application. I have configured my class that contains the scheduler method startService(). Below is my code : Service Class : Main Class : I have annotated the class as @Component and also method as @Scheduled(fixedRate = 30000) that will running as a scheduler. But while running the application as Spring Boot the scheduler does

Java Scheduler Thread Switching

java scheduler threadpool

I’ve read somewhere that in Java scheduler, thread switching happens after execution of certain amount of instructions and not after a certain time (like schedulers used in operating systems). But the references were missing. I wanted to know if this is correct. Answer Java used to have a feature called GreenThreads, It was removed in 1.3. For all practical purposes