Log Errors in Summarize Phase of Map/Reduce

I’m having trouble logging errors during the summarize phase of a map/reduce script.

My understanding is that each phase essentially has a built-in try/catch and any errors thrown automatically get written to the summarize context, which you can then iterate through and log during the summarize phase. However, when I log the summarize context object just to see it, there are never any errors to iterate through, even when I know I’ve triggered one.

Ultimately, I’m trying to create a task to execute a different script during the summarize phase only if there are no errors during the first script execution. But I need to find the errors array in the context object to do that.

Anyone know what I’m missing?

Beginner Asked on March 26, 2021 in SuiteCloud.
Add Comment
1 Answer(s)
function summarize(context) {

if (context.inputSummary.error) {

log.error('Input Error', context.inputSummary.error);

context.mapSummary.errors.iterator().each(function (key, error) {

log.error('Map Error for key: ' + key, error);

return true;

context.reduceSummary.errors.iterator().each(function (key, error) {

log.error('Reduce Error for key: ' + key, error);

return true;



Don’t know if this would be of help, this is how we track logs in the summarize phase.

Beginner Answered on March 26, 2021.

Thank you!

on March 26, 2021.
Add Comment

Your Answer

By posting your answer, you agree to the privacy policy and terms of service.
  • This site made possible by our sponsors:   Tipalti   Celigo   Become a Sponsor   Become a Sponsor