Scriptrunner - need update customfield values faster

[Cedacri]

Check out this snipper that updates a bunch of issues' customfields:

    for (issue in parentsIssue) {
       
        issue.update {
            setCustomFieldValue('xx', issue.getCustomFieldValue('yt').toDouble().round(1).toString())
            setCustomFieldValue('xc', issue.getCustomFieldValue('yy').toDouble().round(1).toString())
            setCustomFieldValue('xv', issue.getCustomFieldValue('yu').toDouble().round(1).toString())
            setCustomFieldValue('xb', issue.getCustomFieldValue('yi').toDouble().round(1).toString())

            setCustomFieldValue('xs', remaining_ce.round(1)?.toString())
            setCustomFieldValue('xd', remaining_ef.round(1)?.toString())
            setCustomFieldValue('xa', remaining_eg.round(1)?.toString())
            setCustomFieldValue('xy', remaining_xx.round(1)?.toString())
        }
    }

Neat right?

Thing is, for each issue with 8 customfields apiece, this takes too long, around 15~ seconds give or take per issue, and I need to iterate over potentially dozens of issues at once.

I've previously tried com.atlassian.jira.issue.fields.updateValue and it was somewhat faster, but not by much.

How can I do this faster?

My understanding that updateValue or setCustomFieldValue are calls to the DB that update the fields in question and it somehow loads it(?) Is it possible to edit the fields and 'commit' them all at once instead of a bunch of update calls?

[PD Sheehan]

The "update" block should commit all the changes back to the database at once in a single transaction.

I would check that you don't have automations or other listeners that are then firing and delaying the execution of the subsequent loop.

[Matt Parks]

What causes the script to run? Is it part of a Behavior, a Script Listener? Automation rule?

When I'm updating issues like this, I typically do it in a Script Listener where I'll set the values and then run the following to update and re-index the issue. I've never had a problem with these updates taking a noticeable amount of time.

def issueIndexingService = ComponentAccessor.getComponent(IssueIndexingService);

def user = ComponentAccessor.getJiraAuthenticationContext().getLoggedInUser()

(do all of your custom field value setting in here)

ComponentAccessor.getIssueManager().updateIssue(user, issue, EventDispatchOption.DO_NOT_DISPATCH, false)

boolean wasIndexing = ImportUtils.isIndexIssues();

ImportUtils.setIndexIssues(true);

issueIndexingService.reIndex(ComponentAccessor.getIssueManager().getIssueObject(issue.id));

ImportUtils.setIndexIssues(wasIndexing);