@Override
    public Duration getTimeout() {
        return Duration.ofSeconds(applicationRepository.configserverConfig().zookeeper().barrierTimeout()).plus(Duration.ofSeconds(30));
    }
Set to make sure that timeout for the handler is higher than any timeouts used inside the handler (e.g. zookeeper barrier timeout)
Setting this too low will lead to a response with status code 504 and empty response body.
configserver/src/main/java/com/yahoo/vespa/config/server/http/SessionHandler.java