Failed to the right of any of the Upgrade Units. Clicking on the word 'Failed' will show the details which include the message: Unexpected error while upgrading upgrade unit: Data migration jar is not running.
VMware NSX 4.0.x
VMware NSX-T Data Center 3.x
This is a known issue that can occur while upgrading between certain versions of NSX Manager. This issue occurs when a 2nd upgrade-coordinator upgrade of a different version of the desired upgrade is running.
This issue is resolved in VMware NSX 4.1, available at Broadcom downloads.
If you are having difficulty finding and downloading software, please review the Download Broadcom products and software KB.
Workaround:
Attempt a Retry via the user interface.
Note: If a Retry fails, or for upgrades targeting versions 4.0.x or below that fail with the symptoms described here, please open a support case with Broadcom Support and refer to this KB article.