Upgrade Delivery Controller from 7.6 to 7.15, Failed to upload database scripts from DDC1 when DDC2 is upgrade first

[Song Yang]

Steps:

1. Create a dual controller within one site environment, we call DDC1 and DDC2, SQLExpress installed on DDC1.
2. Upgrade DDC2 to 7.15 CU4  and upgrade DBSchema from DDC2, keep Studio opening.
3. Upgrade DDC1 to 7.15 CU4  and open Studio after that.

 

[Actual Result]
The Studio of DDC2 still require upgrade DBSchema. If re-open Studio from DDC1, same page displayed.
Then click "Start the automatic Site upgrade", error popup said failed to upload database scripts.

 

[Error Information.tx]

https://issues.citrite.net/secure/attachment/1835938/1835938_Error+Information.txt

 

 

My Question:

1. How do I properly upgrade an environment with two DDCS? Where i can find upgrade steps?

2.What is the different between the auto upgrade and manual upgrade?

3. What details i should pay more attention to during the upgrade process?

[Muralidharan Shanmugam]

@Song Yang 7.15 CU5 is not released yet and testing in-progress.  Please wait for the official release.