Version:
All Carbon Black versions.
Issue:
A Carbon Black upgrade is failing.
Symptoms:
The upgrade is aborted, and the following message is observed:
Exception: Unable to complete VT report migration to SOLR. Unable to start SOLR.
Cause:
During this step in the upgrade, a connection attempt is made to localhost. When there is a proxy configured for the Carbon Black server, this call to localhost may fail depending on your proxy's configuration.
Solution:
To complete the upgrade, temporarily disable the proxy for the Carbon Black server. Additionally, depending on your server's configuration, ensure the /etc/hosts file still contains the localhost reference to the loopback address:
127.0.0.1 localhost
Important Note(s):
Make sure the proxy configuration is only temporarily disabled, then enabled again immediately following the upgrade. This is critical as Carbon Black features with the Alliance server requires internet access.
