Closed
Description
Hi,
I am trying to resolve domain names to ip with timeout. I set the timeout in resolver, however, looks like the timeout be ignored?
I tried many times, the time elapsed measured is around 50 ms on my setup.
Looks like it ignore the resolver timeout ? Is there anything wrong with my code?
import org.xbill.DNS.*;
public class eee {
public static void main(String[] args) {
Resolver r1 = null;
try {
String [] resolvers = new String [] {
"1.1.1.1",
"8.8.8.8",
"8.8.4.4"
};
r1 = new ExtendedResolver(resolvers);
r1.setTimeout(0, 20);
} catch (Exception e) {}
Lookup l = null;
org.xbill.DNS.Record[] records = null;
String s = "github.com";
try {
l = new Lookup(s);
l.setResolver(r1);
} catch (Exception e) {}
long start = System.currentTimeMillis();
try {
records = l.run();
} catch (Exception e) {}
System.out.println(System.currentTimeMillis()-start);
String ip;
if (records != null && records.length != 0) {
String[] ans = records[0].toString().split("\t");
ip = ans[ans.length - 1];
System.out.println(ip);
}
}
}output:
54
192.30.255.113