Ambari Rolling/Express Upgrade History

Ambari version 2.5 provides a new Upgrade History page. This is useful in many ways such as:

• Determine the history of upgrades that your cluster has undergone (and any issues).
• Collect any specific logs from within the web UI without the need to login to the respective host.
• Determine time taken for upgrade, which gives an indication of the time required for the next upgrade.

In short, Upgrade planning and troubleshooting are two aspects addressed through this page

Here is how the ‘Upgrade History’ page looks:

Besides the above UI, you could also retrieve the entire Upgrade output through a couple of Ambari API calls

Additionally you could redirect the output of above call to a file and send it over for troubleshooting any issues.