[PCA 2.x] Oracle VM Upgrade Fails with "Communications link failure" (Doc ID 2622567.1)

Last updated on JANUARY 12, 2025

Applies to:

Symptoms

On Oracle Private Cloud Appliance, when attempting to upgrade the rack, the upgrade fails during the Oracle VM Manager upgrade.

The following kind of errors get logged in /var/log/ovmm/ovmm-install-TIMESTAMP.log :

2019-11-17 10:40:42,548 INFO Upgrade Initialization Starting
2019-11-17 10:40:42,619 INFO Oracle Distributed Object Fabric (ODOF):
Copyright (C) 2007, 2016 Oracle. All rights reserved.
2019-11-17 10:40:42,619 INFO ODOF Version: 1.3.1.4
2019-11-17 10:40:42,619 INFO Initializing...
2019-11-17 10:40:42,785 ERROR Failed to connect to Database! Error: **
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.

Changes

 Upgrading the PCA to version 2.3.4

Cause

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