org.apache.accumulo.fate.util
Class AddressUtil

java.lang.Object
  org.apache.accumulo.fate.util.AddressUtil

public class AddressUtil
extends Object

Constructor Summary

AddressUtil()

Method Summary

static int

getAddressCacheNegativeTtl(UnknownHostException originalException) Fetch the security value that determines how long DNS failures are cached.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AddressUtil

public AddressUtil()

Method Detail

getAddressCacheNegativeTtl

public static int getAddressCacheNegativeTtl(UnknownHostException originalException)

Fetch the security value that determines how long DNS failures are cached. Looks up the security property 'networkaddress.cache.negative.ttl'. Should that fail returns the default value used in the Oracle JVM 1.4+, which is 10 seconds.

Parameters:

originalException - the host lookup that is the source of needing this lookup. maybe be null.

Returns:

positive integer number of seconds

Throws:

IllegalArgumentException - if dns failures are cached forever

See Also:

InetAddress