HI, I did a test run which dumped /etc/hosts and reported hostname info:
YJD */etc/hosts* contents: 127.0.0.1 localhost asf900.ygridcore.net *asf900* # The following lines are desirable for IPv6 capable hosts ::1 localhost ip6-localhost ip6-loopback ff02::1 ip6-allnodes ff02::2 ip6-allrouters YJD *hostname* contents: asf900 (see HADOOP-10888 https://builds.apache.org/job/PreCommit-HADOOP-Build/4362//testReport/, the host is Slave H0 (Build slave for Hadoop project builds : asf900.gq1.ygridcore.net) ) I see hostname "asf900" in "127.0.0.1" row for IPv4 but I don't see it in the "::1" row for IPv6 in /etc/hosts file. I wonder if adding "asf900" as an entry to "::1" row would make it work. The method stuck at is java.net.Inet4AddressImpl.getLocalHostName (IPv4) though. > Thanks. --Yongjun On Wed, Jul 23, 2014 at 10:14 PM, Yongjun Zhang <yzh...@cloudera.com> wrote: > Thanks Arpit for throwing this discussion as part of HADOOP-10888 > investigation! It's a good guess of Arpit's about possible missing > /etc/hosts entry. > > Please feel free to comment in HADOOP-10888 so information can be > centralized there. > > Best regards, > > --Yongjun > > > > On Wed, Jul 23, 2014 at 9:07 PM, Arpit Agarwal <aagar...@hortonworks.com> > wrote: > >> Can someone with administrator access to the Jenkins VMs please take a >> look >> at the /etc/hosts configuration? >> >> TestIPC often fails in Jenkins runs due to a timeout in >> InetAddress.getLocalHost. Most likely a missing entry in /etc/hosts for >> the >> system hostname. >> >> e.g. >> >> https://builds.apache.org/job/PreCommit-HADOOP-Build/4352//testReport/org.apache.hadoop.ipc/TestIPC/testRetryProxy/ >> >> >> https://builds.apache.org/job/PreCommit-HADOOP-Build/4355/testReport/org.apache.hadoop.ipc/TestIPC/testRetryProxy/ >> >> >> https://builds.apache.org/job/PreCommit-HADOOP-Build/4347/testReport/org.apache.hadoop.ipc/TestIPC/testRetryProxy/ >> >> java.lang.Exception: test timed out after 300000 milliseconds >> at java.net.Inet4AddressImpl.getLocalHostName(Native Method) >> at java.net.InetAddress.getLocalHost(InetAddress.java:1374) >> at org.apache.hadoop.net.NetUtils.getConnectAddress(NetUtils.java:372) >> at org.apache.hadoop.net.NetUtils.getConnectAddress(NetUtils.java:359) >> at >> >> org.apache.hadoop.ipc.TestIPC$TestInvocationHandler.invoke(TestIPC.java:212) >> at org.apache.hadoop.ipc.$Proxy11.dummyRun(Unknown Source) >> at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source) >> at >> >> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) >> at java.lang.reflect.Method.invoke(Method.java:597) >> at >> >> org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:186) >> at >> >> org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:101) >> at org.apache.hadoop.ipc.$Proxy11.dummyRun(Unknown Source) >> at org.apache.hadoop.ipc.TestIPC.testRetryProxy(TestIPC.java:1060) >> >> Thanks, >> Arpit >> >> -- >> CONFIDENTIALITY NOTICE >> NOTICE: This message is intended for the use of the individual or entity >> to >> which it is addressed and may contain information that is confidential, >> privileged and exempt from disclosure under applicable law. If the reader >> of this message is not the intended recipient, you are hereby notified >> that >> any printing, copying, dissemination, distribution, disclosure or >> forwarding of this communication is strictly prohibited. If you have >> received this communication in error, please contact the sender >> immediately >> and delete it from your system. Thank You. >> > >
