Data location status

A data location can have the following statuses:

Ready: data can be accessed in read/write mode. A data location with this status accepts incoming batches and processes existing ones.
Maintenance: data cannot be accessed. A data location with this status completes current batches but does not accept new ones. Ongoing loads are paused and cannot be submitted. Continuous loads stop processing incoming loads and keep them on hold.

When switching a data location to maintenance status, ongoing batches are processed to completion. Loads submitted afterward will fail and can only be submitted once the data location returns to ready status.

A data location in maintenance mode is indicated by a disabled avatar on the Welcome page.

Change data location status

To switch a data location to maintenance mode:

In the Management view, expand the Data Locations node.
Right-click the desired data location and select Set Status to Maintenance.
Confirm by clicking OK in the dialog prompt.
The data location is set to maintenance mode.

To set a data location status to ready:

In the Management view, expand the Data Locations node.
Right-click the desired data location and select Set Status to Ready.
The data location is set to ready mode.

Use maintenance mode

The maintenance status can be used to perform maintenance tasks on a data location.
For example, if you need to transition the data location to a model edition involving structural changes that require manual DML commands on the hub tables, you can follow these steps:

Switch the data location to maintenance mode.
Allow ongoing batches to finish; no batches can be submitted.
Deploy the new model edition.
Execute your DML commands.
Restore the data location to ready status to resume batch submissions.

By following this sequence, you ensure that no batches are submitted while the hub is in maintenance.

The data location automatically switches to maintenance mode during model edition deployment and then returns to the ready state afterward.