[jboss-jira] [JBoss JIRA] Created: (JBAS-3794) Remove all calls to InetAddress.getHostName() (causes reverse DNS lookup)
Remove all calls to InetAddress.getHostName() (causes reverse DNS lookup)
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Key: JBAS-3794
URL: http://jira.jboss.com/jira/browse/JBAS-3794
Project: JBoss Application Server
Issue Type: Bug
Security Level: Public (Everyone can see)
Components: Clustering
Affects Versions: JBossAS-4.0.4.GA
Environment: Java 5
JBoss 4.0.4
Reporter: Michael Newcomb
Assigned To: Brian Stansberry
Priority: Minor
Any call to InetAddress.getHostName() will cause a reverse DNS lookup. If DNS is not
configured properly, can cause slow startup/join times between JBoss clusters.
The most notable is in ClusterNode.java:
public ClusterNode(IpAddress jgAddress)
{
if (jgAddress.getAdditionalData() == null)
{
this.id = jgAddress.getIpAddress().getHostAddress() + ":" +
jgAddress.getPort();
}
else
{
this.id = new String(jgAddress.getAdditionalData());
}
this.originalJGAddress = jgAddress;
StringBuffer sb = new StringBuffer();
java.net.InetAddress jgIPAddr = jgAddress.getIpAddress();
if (jgIPAddr == null)
sb.append("<null>");
else
{
if (jgIPAddr.isMulticastAddress())
sb.append(jgIPAddr.getHostAddress());
else
----->>>> sb.append(getShortName(jgIPAddr.getHostName()));
}
sb.append(":" + jgAddress.getPort());
this.jgId = sb.toString();
}
The following:
if (jgIPAddr.isMulticastAddress())
sb.append(jgIPAddr.getHostAddress());
else
sb.append(getShortName(jgIPAddr.getHostName()));
should be replaced with:
sb.append(jgIPAddr.getHostAddress());
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