Revalidating Dynamic Configurations
Dynamic Configurations need to be revalidated after queue configuration changes. You can revalidate Dynamic Configurations using the YARN Queue Manager UI.
When changing the queue configuration, on the bottom of the queue’s configuration dialog box the following message is displayed to remind you that Dynamic Configuration revalidation needs to be performed:
In addition a red dot appears next to the Scheduler tab, indication that
some action needs to be taken related to Dynamic Queue Scheduling.
Changes you make here may invalidate dynamic configurations, so you will need to revalidate them. This can be performed on the Schedule tab.
- In Cloudera Manager nevigate to the YARN Queue Manager UI.
After any queue change the following message is displayed on the Schedule page:
Revalidation Required: All dynamic configuration must be revalidated due to queue changes. Please click Revalidate to proceed.
As a result an orange dot next to the Schedule tab, and
Revalidation in progressstatus text appear.
Wait until revalidation is finished.
You do not have to stay on the Schedule page until the Revalidation is done. Once the orange dot next to the Schedule tab disappears , the revalidation is finished.
- Check if any of the Dynamic Configuration became disabled.
Perform one of the following actions for the disabled Dynamic
- Update the queue configuration to make the Dynamic Configuration valid
- Update the Dynamic Configuration to make it valid
- Delete the invalid Dynamic Configuration