How to check event scheduler status in MySQL?
Use SHOW VARIABLES SHOW VARIABLES WHERE VARIABLE_NAME = ‘event_scheduler’
scheduler
Why isn’t Spring running my @Scheduled method?
add “task:annotation-driven” ? <beans> <!– XMLNS, XSD declarations omitted for brevity –> <context:component-scan base-package=”com.mypackage”/> <task:annotation-driven/> <task:executor id=”executor” pool-size=”5″/> <task:scheduler id=”scheduler” pool-size=”5″/> <task:annotation-driven scheduler=”scheduler” executor=”executor”/> </beans> reference http://howtodoinjava.com/2013/04/23/4-ways-to-schedule-tasks-in-spring-3-scheduled-example/ or Spring @Configuration (non-xml configuration) for annotation-driven tasks Just add @EnableScheduling on you WebMvcConfig class @Configuration @EnableWebMvc @EnableAsync @EnableScheduling public class WebMvcConfig extends WebMvcConfigurerAdapter { /** Annotations config … Read more
How to stop a task in ScheduledThreadPoolExecutor once I think it’s completed
run this test, it prints 1 2 3 4 5 and stops public class ScheduledThreadPoolExecutorTest { static ScheduledThreadPoolExecutor executor = new ScheduledThreadPoolExecutor(15); // no static ScheduledFuture<?> t; static class MyTask implements Runnable { private int attempt = 1; public void run() { System.out.print(attempt + ” “); if (++attempt > 5) { t.cancel(false); } } } … Read more
python apscheduler – skipped: maximum number of running instances reached
It means that the task is taking longer than one second and by default only one concurrent execution is allowed for a given job. I cannot tell you how to handle this without knowing what the task is about.
Difference between * and ? in Spring @Scheduled(cron=”…..”)
The tutorial is outdated. The symbol ? means exactly the same as the symbol *. As of Spring version 3.1.2.RELEASE, the call hierarchy is the following: The constructor CronTrigger(String) calls the constructor CronSequenceGenerator(String) CronSequenceGenerator(String) calls parse(String) parse(String) calls setDays(BitSet bits, String field, int max). Its implementation is clear: private void setDays(BitSet bits, String field, int … Read more
How to create a new Linux kernel scheduler
I’ve figured out the answer to my question, so I thought I’d add it here. Below is the patch that will add a new scheduler to the 2.6.34 vanilla kernel. Right now, I’ve only compiled the kernel. I fully expect running a system with this EXACT patch will cause it to crash — so use … Read more
How to persist `event_scheduler` to be `ON` even if MySQL is restarted?
You can set event_scheduler=ON in my.ini or my.cnf file, then restart your server for the setting to take effect. Once set event_scheduler will always remain ON no matter whether your server restarts.
java quartz scheduler fire a new job immediately
Yeah, use the following Trigger to immediately fire your job instead of waiting upon the Cron Expressions. String jobName = “”; // Your Job Name String groupName = “”; // Your Job Group Trigger trigger = TriggerBuilder.newTrigger() .withIdentity(jobName, groupName) .startNow() .build();
Android Process Scheduling
The following list presents the different types of processes in order of importance (the first process is most important and is killed last): Foreground process Visible process Service process Background process Empty process Note: Android ranks a process at the highest level it can, based upon the importance of the components currently active in the … Read more