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AWS Elastic Data Engine Fails to Boot After Instance Change (KBA10595)







Following the change of an AWS Elastic Data Engine instance type (r5 to r6, for example), the Delphix Engine may fail to start its services, and attempts to access the Web GUI or CLI will fail.


This issue only occurs on Elastic Data Engines; Engines using block storage only will not encounter an issue.

Applicable Delphix Versions

Click here to view the versions of the Delphix engine to which this article applies
Date Release
Nov 21, 2023
Oct 18, 2023
Sep 21, 2023
Aug 24, 2023
Jul 24, 2023
Jun 21, 2023
May 25, 2023
Apr 13, 2023 |
Mar 13, 2023 | Mar 20, 2023 |
Feb 13, 2023
Jan 12, 2023
Releases Prior to 2023
Major Release All Sub Releases


When this behavior is encountered, Delphix Support must be engaged to modify internal parameters which will allow the Engine to start successfully. In the interim, if it is critical to restore service, the Engine can be reverted to its previous instance type and will start successfully.

This issue is resolved in Delphix and later



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