Environment

• YugabyteDB -  v2.16.x

Issue

• When the universe is upgraded from 2.14+ to 2.16+, the upgrade fails with below errors.

Failed to execute task {"sleepAfterMasterRestartMillis":180000,"sleepAfterTServerRestartMillis":
180000,"nodeExporterUser":"prometheus","deviceInfo":{"volumeSize":200,"numVolumes":1,
"storageClass":"standard","mountPoints":"/yb01","storageType":"Scratch"},"universeUUID":
"12ce8150-8a5e-4a5b-a9d4-ff35c509d90e","enableYbc":true,"ybcSoftwareVersion":"1.0.0-b16",
"installYbc":true,"ybcInstalled":false,"encryptionAtRestConfig":{"encryptionAtRestEnabled":
false,"opType":"UNDEFINED","type":"DATA_KEY"},"communicationPorts":{"ma..., hit error:

null.

Resolution

Overview

• v2.16.2 needs YB-controller (YBC) packages. We need to ensure that YBC bits are present in the right location.

• To do this, we can run the below commands to get the right files in right location

  $ mkdir -p /opt/yugabyte/ybc/release
  $ mkdir -p /opt/yugabyte/ybc/releases
  $ cp /opt/yugabyte/yugaware/ybc/* /opt/yugabyte/ybc/release/
  

  After performing the above steps, click on the refresh button in the releases page.

  
• Doing this would create the required directory structure in /opt/yugabyte/ybc/releases
• Retrying the universe upgrade will then complete successfully.