How can I process every address in an organization without hitting the Apex CPU time limit?

Question

I have an Apex class that takes every address for Account, Contact, and Lead objects, verifies and standardizes them via callouts in groups of 100, and begins a batch job to update all the records.

I am getting a CPU time limit exceeded error, but I'm not sure how to best get around it. I'm not looking for small optimizations and tweaks to make the code run a little faster; I've already done that. I'm looking for a scalable solution that will make it so the verification part of the code is separated into multiple transactions.

Is it possible to make regular Apex code execute as a batch process?

EDIT: I tried chaining queueables, and ran into a Maximum callout depth has been reached error. Evidently Queueables executed from other Queueables aren't allowed to make callouts.

Answer 1

I have a similar situation with the Queueable class. So this is what I did. The Queueable class is invoked from another class. This class is exposed as REST interface.

In my Rest class, I did the following.

integer currentQueueableJobs  = 0;
integer totalQueueableJobs = System.Limits.getLimitQueueableJobs();
//Queue the class.
if(currentQueueableJobs  < totalQueueableJobs){
ID jobID = System.enqueueJob(new AsyncExecutionExample());
}
currentQueueableJobs = System.Limits.getQueueableJobs();

Can you do something similar with getCpuTime() and getLimitCpuTime() before you continue to process the data?

Yes! You can change your process to a Batch process in order to get a little bit relaxed governer limits.