I tried that already, and in my case it doesn't seem to fix the problem. For example (my short hostname is "udesktop"),
Running org.apache.hadoop.yarn.server.resourcemanager.TestAMAuthorization Tests run: 4, Failures: 0, Errors: 2, Skipped: 0, Time elapsed: 11.936 sec <<< FAILURE! - in org.apache.hadoop.yarn.server.resourcemanager.TestAMAuthorization testUnauthorizedAccess[0](org.apache.hadoop.yarn.server.resourcemanager.TestAMAuthorization) Time elapsed: 2.724 sec <<< ERROR! java.net.UnknownHostException: Invalid host name: local host is: (unknown); destination host is: "udesktop":8030; java.net.UnknownHostException; For more details see: http://wiki.apache.org/hadoop/UnknownHost at org.apache.hadoop.ipc.Client$Connection.<init>(Client.java:413) at org.apache.hadoop.ipc.Client.getConnection(Client.java:1489) at org.apache.hadoop.ipc.Client.call(Client.java:1424) at org.apache.hadoop.ipc.Client.call(Client.java:1385) at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:230) at com.sun.proxy.$Proxy14.registerApplicationMaster(Unknown Source) at org.apache.hadoop.yarn.api.impl.pb.client.ApplicationMasterProtocolPBClientImpl.registerApplicationMaster(ApplicationMasterProtocolPBClientImpl.java:106) at org.apache.hadoop.yarn.server.resourcemanager.TestAMAuthorization.testUnauthorizedAccess(TestAMAuthorization.java:281) My /etc/hosts reads: 127.0.0.1 localhost udesktop 127.0.1.1 udesktop 10.211.55.13 udesktop # The following lines are desirable for IPv6 capable hosts ::1 ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters How does that compare to your environment? Thanks, Sangjin On Wed, Jan 6, 2016 at 8:57 AM, Arun Suresh <arun.sur...@gmail.com> wrote: > Hello Sangjin > I had similar problems recently.. Got around it by modifying my /etc/hosts. > I just update the 127.0.0.1 entry to add the short hostname of the machine > like so : > ... > 127.0.0.1 localhost <short-hostname> > ... > > > On Wed, Jan 6, 2016 at 8:52 AM, Sangjin Lee <sj...@apache.org> wrote: > > > Has anyone set up an ubuntu VM to build hadoop and run unit tests > locally? > > I'm familiar with setting up a linux machine to build and test hadoop, > but > > a VM (I'm using Parallels on mac) seems to cause issues regarding > resolving > > the localhost address. I get all kinds of UnknownHostExceptions and > > variations. I would greatly appreciate the pointers if anyone has set > that > > up successfully. Thanks! > > > > Regards, > > Sangjin > > >
