public void setServerPulseMillis(long serverPulseMillis) {
        this.serverPulseMillis = serverPulseMillis;
    }
The amount of time in milliseconds that the server
should wait before checking to see if the parse has timed out
or if the wait has timed out
The default is 5 seconds.

@param serverPulseMillis milliseconds to sleep before checking if there has been any activity
tika-core/src/main/java/org/apache/tika/fork/ForkParser.java