24
votes
Accepted
How to test a scheduler which runs a batch?
I had a similar problem before which I solved by explicitly calling the execute method of my Schedulable class.
Try something like this:
Test.startTest();
AccountBatchScheduler abs= new ...
- 5,513
17
votes
Accepted
CRON to schedule batch class to run everyday at 10PM
For daily 10 PM
0 0 22 * * ? *
first 0 for seconds
second 0 for min
third 22 for hours i.e. 10 PM
you can use http://www.cronmaker.com/ for generating cron expression
for more detail check ...
- 22.5k
16
votes
How to test a scheduler which runs a batch?
Thanks for posting the question, this is a weird one.
As the Salesforce documention says, Test.stopTest() should force asynchronous processes to run. It works for Apex Batch on its own, and it works ...
- 1,135
16
votes
CRON to schedule batch class to run everyday at 10PM
Adding an answer because I always end up here and then have to look through the docs to remember the syntax:
Cron Format:
second minute hour day_of_month month day_of_week optional_year
Format ...
- 10k
14
votes
Accepted
Apex Batch - Is execute method called if start returns 0 results?
No. Execute will not be called unless at least one non-null item is available for processing. You'll have to come up with an alternative method. As a corollary to this statement, "scope" will never be ...
- 481k
13
votes
Accepted
System.LimitException: Too many queueable jobs added to the queue
As you are chaining the jobs you have limit of 1 on child jobs.
When chaining jobs, you can add only one job from an executing job with System.enqueueJob, which means that only one child job can exist ...
- 652
8
votes
Accepted
Scheduling a Batch job at a particular time
You need to transform your datetime to the schedule format. More info here
Example
String day = string.valueOf(system.now().day());
String month = string.valueOf(system.now().month());
String hour =...
- 5,615
8
votes
Accepted
Scheduling a batch process using UI- Which timezone does it schedule on?
The apex developer guide shows that scheduled jobs follow users time zone
The System.Schedule method uses the user's timezone for the basis of all schedules.
The easisest way would be to use a ...
- 90.5k
8
votes
Ghost processes / batch processes (NA34 and NA39)
Not sure this is worthy of an answer, but too much to put as a comment. The only time I have seen anything remotely similar was with this and I was able to prove to support that a job had run and ...
- 16.6k
8
votes
Accepted
Ghost processes / batch processes (NA34 and NA39)
Seems I got some attention after submitting a case or this post or whatever, just got this notification: A bit late but at least I know the cause
On March 16, 2017, Salesforce identified a ...
- 54k
8
votes
Accepted
Scheduled Apex with one-time execution not being executed
FURTHER UPDATE:
It seems that, whilst there is some sympathy from within Salesforce, the Salesforce PM and R&D team responsible believe this is a "feature enhancement", not the reporting ...
- 34.3k
8
votes
Accepted
executeBatch method returning invalid id 000000000000000
This error seems to occur when a batch job is moved to the flex queue. When it enters the flex queue, it tries to acquire a flex queue token. If it fails to receive the token, this error is thrown and ...
- 4,977
7
votes
How to test a scheduler which runs a batch?
It's not going to run the batch. Since you have already tested the batch actions separately, you just need to query for the CronTrigger and verify it got scheduled. That's all that Test.stopTest() ...
- 149k
7
votes
Accepted
Cron Schedule Mondays 6AM
Add the Schedulable interface, then you can schedule the class in the Setup screen or by writing some execute anonymous code:
public class BatchCount implements Database.Batchable<SObject>, ...
- 481k
7
votes
Accepted
Testing a batch job which is scheduled through Handler class
It's not going to run the batch. You should test the batch actions separately. In this case, you just need to query for the CronTrigger and verify that it did, indeed, get scheduled.
static ...
- 149k
7
votes
Accepted
Delete Old Scheduled Jobs from Batch Class
To clean up the list, you can purge the old jobs:
global void finish(Database.BatchableContext BC)
System.purgeOldAsyncJobs(Date.today());
You should only be calling System.abortJob to cancel jobs ...
- 481k
7
votes
First error: Exceeded maximum time allotted for callout (120000 ms)
The callout timeout is tricky, because it applies both to single callouts and as a cumulative limit across a transaction:
The maximum cumulative timeout for callouts by a single Apex transaction is ...
- 92.1k
6
votes
Accepted
Too many DML rows: 10000
That limit is for the entire transaction. So if you have one DML Operation with 10,000 rows, you cannot perform any other operations in that transaction.
In your first example:
Database.insert(...
- 149k
6
votes
Accepted
Schedule deployment change set
You can use the Force.com Migration Tool (ant) and write a small script to do this.
The steps would be:
ant retrieve from the source org
ant deploy to the target org
You would need somewhere to run ...
- 1,291
6
votes
batch class is failing due to time while processing SOQL due to timeout error
There are a number of things you can do to improve the performance of your SOQL query. The most effective will be to understand how to diagnose it yourself, because how to solve your issue depends on ...
- 6,456
6
votes
Scheduling a Batch job at a particular time
I usually include a few helper methods in any Schedulable class that needs to run at a given time as determined by Apex logic that's more complex than a simple cron expression. You can then call ...
- 3,385
6
votes
Accepted
Schedule a batch every 30 mins doesnot work
You are right, you will need two schedule statements to run the scheduled job every 30 minutes.
System.schedule('Scheduled Job 1', '0 0 * * * ?', new ScheduledClass());
System.schedule('Scheduled Job ...
- 1,065
6
votes
Accepted
Handling the exception in my scheduler Class
This is realistically impossible. The reason why, of course, is Governor Limits. The way your code is written, if a governor limit hits you, you're dead in the water, indefinitely, until someone ...
- 481k
6
votes
Maximum Number of Email Invocations Exceeded
The easiest fix for this would be to declare a List<Messaging.SingleEmailMessage> outside your for loops. Inside your iterations, rather than calling Messaging.sendEmail() each turn, you'd add ...
- 7,147
6
votes
Accepted
Apex class's behavior mysteriously changing after debug statement removed
I believe it's because you're using the string data type instead of the Id data type, and thus triggering some sort of error in the system that debugging fixes (e.g. because they are then identified ...
- 481k
6
votes
Accepted
Current state of reliable execution scheduling
For my SObjectWorkQueue I am using batch chaining and serialized work records. It’s not a new approach but worked very reliably in the past for me. Not sure if I ever saw this penalty.
https://github....
- 37.3k
6
votes
Accepted
Test Class Id Error
leads is a List<Lead>, and lists (along with other collections) do not have Ids. The records they contain might, but the list itself will not.
Beyond that, SObject records do not have Ids until ...
- 59.4k
6
votes
Accepted
Order of constructor execution for a class that implements a batchable as well as scheduleable interface
This method:
global void execute(SchedulableContext SC){
testBatch currentInstanceOfBatch = new testBatch();
Database.executeBatch(currentInstanceOfBatch,currentInstanceOfBatch....
- 92.1k
6
votes
Accepted
How can I schedule a batch for every 2h (to run at half past?)
Generally speaking, CRON expression allows to specify minutes and hours of the job.
For minutes, it is possible to specify at which minute of an hour job should be run.
For hours, hours can be ...
- 4,279
6
votes
Accepted
Can I define the order when using two batches in the Schedule Class?
salesforce doesn't guarantee the order of execution of batches in your case. It is possible to implement using batch chaining.
In order to send for execution second batch after the first batch, you ...
- 18.2k
Only top scored, non community-wiki answers of a minimum length are eligible