Upgrade IT Analytics Data Collector in MSCS
IT Analytics Data Collector performs auto-upgrade once the Portal is upgraded. As part of auto-upgrade, Data Collector services are stopped, binaries are updated, and then services are started. In order to avoid unwanted service restart/fail-over by MSCS cluster, it is advised to have the following manual interventions.
Before IT Analytics Portal is upgraded, ensure that the following steps are performed on each MSCS clusters where Data Collector is installed.
- Pause the node on which Roles are online with Do not drain Roles option in MSCS cluster as given below. This will ensure cluster manager does not initiate failover of Roles when Data Collector upgrade is in progress.
- Perform Portal upgrade.
- Once Data Collector contacts the Portal, it will perform auto-upgrade. During the auto-upgrade process, Data Collector services Aptare Agent, Kafka, and Zookeeper will be stopped and cluster detects this and marks the Roles as Failed. Once the auto upgrade is successfully completed, services Aptare Agent, Kafka, and ZooKeeper will be started, but the Roles on MSCS for Data Collector will be still marked as Failed.
- Resume the Node that was paused earlier with option "Do not Fail Roles back".
- For each Aptare Agent, Kafka, and Zookeeper Roles, perform Bring Online.
