In the “Search configuration” tab you configure the search index for the server, that will allow you to do quick searches over all the data of the databases’ views in that server.
There are two types of supported indexes:
- Scheduler Index: you have to specify a Scheduler Index server and the name of an index contained in that server.
- Elasticsearch: you have to specify an Elasticsearch server and the name of
an index contained in that server. This is the recommended option for
big indices, using an Elasticsearch server running on cluster.
Elasticsearch indexes are divided into two types, according to the Elasticsearch server’s version:
- Elasticsearch 2.x: You have to choose this one when the server has version 2.x.
- Elasticsearch 5.6.+ / 6.x: You have to choose this type when the Elasticsearch server has version 5.6.0 or later.
Note that, in order to use Scheduler Index or Elasticsearch indices, you first have to add the index server, as shown in the figure Search Configuration Wizard.
To enable the search feature over a server, follow these steps:
Index the desired databases from the server by using the VDPIndexer job type (see section Configuring New Jobs of the Scheduler Administration Guide).
In the “Search configuration” tab:
First you need to add the index server to be used. Once you click the icon to add a new index server (see Search Configuration Wizard), a dialog is opened to specify the server configuration parameters (see Adding a new index server).
First you have to choose the Type of index server: Scheduler Index, Elasticsearch 2.x or Elasticsearch 5.6.+ / 6.x.
The following parameters are common to both types or servers:
- Name and Description (optional) to be assigned to the server.
- Host and port where it is running.
- Login (optional) and password (optional) to connect to the server.
In the case of the Elasticsearch servers you also may configure the Cluster Name (optional) which contains the index to be used.
At any moment you can edit or delete the index servers using the corresponding icons of the Actions column of the table.
Click the edit icon of the pertinent server in the Edit column of the table and
- Select the Index Type: Scheduler Index, Elasticsearch 2.x or Elasticsearch 5.6.+ / 6.x.
- Select the Index Server previously configured (the dropdown will show only the names of the servers of the selected type) and enter the Index Name.
The two configuration options in the top of the Search tab allow configuring how many fields and results will be shown, by default, per each view, in the search results summary (see section Search). The fields will be selected randomly. It is possible to configure the fields to be shown per each view by clicking the icon of the column Select view fields. A dialog similar to the one of the Selecting view fields will be shown. This dialog shows, on the left side, the list of views contained in the index. Clicking the view name will show, on the right side, the fields of that view. Then, you can select the fields to be shown in the search results summary (clicking the check boxes) and its order (dragging and dropping them).
Note that the index configured for a server may not contain all its views (i.e. some views could have been indexed, but not all of them), or all the data of all the views (i.e. some views could have been indexed partially). In this case, the searches will be restricted to the indexed views and tuples.