Problem

Error Attachment size must be a number between 1 to 2147483647 when trying to set 2GB(2147483647 bytes) as attachment limit as per the Edit attachment settings page.

Environment

Jira Cloud

Steps to Reproduce

1. Open https://<your-domain>.atlassian.net/secure/admin/ViewAttachmentSettings.jspa
2. Click Edit Settings
3. In the Attachment Size field, specify the maximum attachment size of 2 GB which is 2147483648 bytes

Expected Results

2 GB is 2147483648 bytes, so the system should allow to set a value of 2147483648 bytes in the Attachment Size field

Actual Results

Size 2 GB is 2147483648 bytes but the system allows only 2147483647 which is 1 byte less.

Workaround

None at the moment. Set 2147483647 bytes in the Attachment Size field as that is the nearest to the correct value.