等同于pm2的isMaster

Question

I've used cluster in the past for running multiple instances, but would like to start using pm2 . However, I have a process that should only run on one of the instances launched.

Is there a way to determine or identify the initially launched instance, an equivalent to isMaster when using pm2 ?

Answer 1

For those ones who search it, I've found this solution.

if (process.env && process.env.pm_id) {
    //running in pm2 
    if (process.env.pm_id % os.cpus().length !== 0) {
        return;
    }else{
        collectSysInfo();
   }
}

https://github.com/Unitech/pm2/issues/2035#issuecomment-199815595