Streaming and WebSockets for load balanced servers

When using a load balancer in front of a cluster of Spotfire Servers, depending on the load balancer’s idle connection timeout, either the Spotfire Server configuration property services.webplayer.websockets.client-heartbeat-interval-seconds (default is 25 seconds) or the load balancer’s timeout setting needs to be adjusted so that WebSocket connections are not closed prematurely. Some load balancers might require special handling of the WebSocket protocol upgrade mechanism. Spotfire web client WebSockets are established on /spotfire/wp/ws.

About this task

For general information about Spotfire Server clusters, see Clustered server deployments.

Procedure

Open a command-line interface and export the active configuration by using the export-config command. (For details on using the Spotfire command line, see Executing commands on the command line.)
On the command line, enter the following command:
```
config set-config-prop --name=services.webplayer.websockets.client-heartbeat-interval-seconds --value=XX
```
where XX is an integer and represents the heartbeat interval in seconds, the value 0 disables heartbeats.
For information about the command options, see set-config-prop.
Import the configuration file back to the Spotfire database by using the import-config command.
Restart the Spotfire Servers in the cluster.