Enable Index Operation

• From the Client API:
  Use EnableIndexOperation to enable the index from the Client API.
  The index can be enabled:

  • On a single node.
  • Cluster wide, on all database-group nodes.

• From Studio:
  To enable the index from Studio go to the indexes list view.

• Reset index:
  Resetting a disabled index will re-enable the index locally, on the node that the reset operation was performed on.

• Modify index definition:
  Modifying the index definition will also re-enable the normal operation of the index.

• The above methods can also be used to enable an index that was disabled via the file system, after removing the disable.marker file.

Enable index - single node:

• With this option, the index will be enabled on the preferred node only.
  The preferred node is simply the first node in the database group topology.

• Note: When enabling an index from Studio,
  the index will be enabled on the local node the browser is opened on, even if it is Not the preferred node.

// Define the enable index operation
// Use this overload to enable on a single node
var enableIndexOp = new EnableIndexOperation("Orders/Totals");

// Execute the operation by passing it to Maintenance.Send
store.Maintenance.Send(enableIndexOp);

// At this point, the index is enabled on the 'preferred node'
// New data will be indexed on this node

// Define the enable index operation
// Use this overload to enable on a single node
var enableIndexOp = new EnableIndexOperation("Orders/Totals");

// Execute the operation by passing it to Maintenance.SendAsync
await store.Maintenance.SendAsync(enableIndexOp);

// At this point, the index is enabled on the 'preferred node'
// New data will be indexed on this node

Enable index - cluster wide:

// Define the enable index operation
// Pass 'true' to enable the index on all nodes in the database-group
var enableIndexOp = new EnableIndexOperation("Orders/Totals", true);

// Execute the operation by passing it to Maintenance.Send
store.Maintenance.Send(enableIndexOp);

// At this point, the index is enabled on ALL nodes
// New data will be indexed

// Define the enable index operation
// Pass 'true' to enable the index on all nodes in the database-group
var enableIndexOp = new EnableIndexOperation("Orders/Totals", true);

// Execute the operation by passing it to Maintenance.SendAsync
await store.Maintenance.SendAsync(enableIndexOp);

// At this point, the index is enabled on ALL nodes
// New data will be indexed

Syntax:

// Available overloads:
public EnableIndexOperation(string indexName)
public EnableIndexOperation(string indexName, bool clusterWide)