Many thanks to Arpit for observing an extra newline in the dumped /etc/hosts:
127.0.0.1 localhost asf900.ygridcore.net *asf900* would anyone who has administrator access please help to take a look? Specifically, the above should be 127.0.0.1 localhost asf900.ygridcore.net *asf900* It would be good to look at all hosts here https://builds.apache.org/computer/H<idx>/ (https://builds.apache.org/computer/H0/, https://builds.apache.org/computer/H01/ ...) because they might have same issue. Thanks a lot. --Yongjun On Thu, Jul 24, 2014 at 8:22 PM, Yongjun Zhang <yzh...@cloudera.com> wrote: > 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. >>> >> >> >
