PCA - Oracle VM Upgrade Fails with "Communications link failure"
(Doc ID 2622567.1)
Last updated on JULY 14, 2020
Applies to:Private Cloud Appliance - Version 2.3.3 to 2.3.4 [Release 2.0]
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: 184.108.40.206 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.
Upgrading the PCA to version 2.3.4
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