public void setSessionValidationInterval(long sessionValidationInterval) {
        this.sessionValidationInterval = sessionValidationInterval;
    }
Specifies how frequently (in milliseconds) this Scheduler will call the
{@link ValidatingSessionManager#validateSessions() ValidatingSessionManager#validateSessions()} method.

<p>Unless this method is called, the default value is {@link #DEFAULT_SESSION_VALIDATION_INTERVAL}.

@param sessionValidationInterval
support/quartz/src/main/java/org/apache/shiro/session/mgt/quartz/QuartzSessionValidationScheduler.java