network programming - java.net.UnknownHostException

Question

I'm installing CSVN using jdk1.6.0_23 and I'm getting the following Java error:

2011-02-10 16:25:50,951 [WrapperJarAppMain] WARN util.GrailsUtil - [WARNING] Property [ldapServerPort] of domain class com.collabnet.svnedge.console.Server has type [int] and doesn't support constraint [nullable]. This constraint will not be checked during validation.
2011-02-10 16:25:51,117 [WrapperJarAppMain] ERROR ehcache.Cache - Unable to set localhost. This prevents creation of a GUID. Cause was: vkqgae01: vkqgae01
java.net.UnknownHostException: vkqgae01: vkqgae01
at java.net.InetAddress.getLocalHost(InetAddress.java:1354)
at net.sf.ehcache.Cache.<clinit>(Cache.java:143)

My server has 3 NICs (eth0, eth1 and eth2). I've added an entry to the hosts file bellow localhost containing the following:

127.0.0.1 vkqgae01

I can successfully ping vkqgae01, but nslookup cannot resolve it.

Any ideas?

question from:https://stackoverflow.com/questions/4969156/java-net-unknownhostexception

Answer 1

That is related with

hostname

and

/etc/hosts

If /etc/hosts doesn't containt the definition of the hostname it fails. Just add your hostname to /etc/host for example if your hostname is work add or modified the following line:

127.0.0.1   work        localhost