Operating Servers :: SAS® Visual Analytics 7.4: Administration Guide

Operate a SAS LASR Analytic Server

Get Server Information

To get status and other information for a SAS LASR Analytic Server:

From the main menu in the administrator, select LASRManage Servers.
Select a server, right-click, and select Get Status.

Here are some details:

The Status column indicates whether the server is running , stopped , or over capacity .

Note: A server is over capacity when its tables memory value equals or exceeds its tables limit value. A server that is over capacity accepts requests for activities such as data retrieval and analysis, but rejects requests to load, import, append, or reload tables.
The Tables Limit column can constrain the amount of memory that the server can use to host tables. By default, the cells in this column are blank, so no constraints are in effect. See Limit Space for Tables.
For a distributed server, a Virtual Memory column (not depicted) indicates how much of the total cluster memory is currently in use by each server process. See Distributed Server: Monitoring.
To get status and other information for multiple servers, select check boxes, and then click in the tab toolbar.
To show or hide a column, right-click on any column heading, and select the column.

Note: The displayed values are calculated as if all LASR star schemas are output as tables. See Creating LASR Star Schemas in the SAS Visual Analytics: User’s Guide.

Start or Stop a Server

From the main menu in the administrator, select LASRManage Servers.
Select a server, right-click, and select Start or Stop.

Here are some details:

If you click in the tab toolbar, all servers that have a selected (checked) check box are started.
If you click in the tab toolbar, all servers that have a selected (checked) check box are stopped.
Starting a server reloads only those tables that participate in reload-on-start. See Reload-on-Start.
Stopping a server unloads all of its tables. See Server lifetime.

Results

To view a log for the most recent interactive action for a server, right-click on the server, and select Last Action Log.

Tip

On Windows, you can use keyboard commands to select the content of a last action log (Ctrl+A), copy the content (Ctrl+C), and paste the content elsewhere (Ctrl+V).

For troubleshooting, see Server Operation Issues.

Autostart a SAS LASR Analytic Server

Introduction

A SAS LASR Analytic Server can start on demand if one or more of the server’s LASR libraries enable autostart. Requests to an autostart-enabled LASR library start the associated SAS LASR Analytic Server if all of the following conditions are met:

The server is not already running.
The requesting user has the necessary privileges.
The request is for a load or import action. Requests to open a data source, read data, or run a data query do not trigger autostart.

In the standard configuration, autostart is enabled for the Visual Analytics Public LASR library. To enable autostart for another library, use either of the following methods.

SAS Management Console

In SAS Management Console, right-click on a LASR library, and select Properties.
On the Extended Attributes tab, set VA.AutoLoad.AutoStart to Yes.

SAS Environment Manager

In the SAS Environment Manager Administration window, click or tap , and select Libraries from the side menu.
Open a LASR library.
From the library’s drop-down list of property pages, select the Extended Attributes property page.
In the Value cell for VA.AutoLoad.AutoStart, enter Yes.
Click .

Operate Other Servers

In addition to the SAS LASR Analytic Server, SAS Visual Analytics uses metadata, middle-tier, and compute servers that are provided by the underlying platform. See Software Components.

Here are basic instructions for restarting the platform:

UNIX:	From your equivalent of `/opt/sas/config/Lev1`, run `./sas.servers restart`.
Windows:	Restart the machine.

If you have multiple machines, complete the preceding basic instruction on each machine, beginning with the machine that hosts the metadata server. Make sure that the metadata server is running before you proceed to other machines.

For details, exceptions, and alternatives, see Operating Your Servers in the SAS Intelligence Platform: System Administration Guide.