Hi Pavan, I don't see you own host mapped in your hosts file. Are you using a DNS+DHCP to assign hosts IPs?
Else you will need to add something like: my.host.external.ip my.host.fully.qualified.name Example: 10.34.187.170 computer1.mydomain.com computer1 JM 2013/8/21 Pavan Sudheendra <[email protected]> > Yes. My /etc/hosts have the correct mapping to localhost > > 127.0.0.1 localhost > > # 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 > > I've added the HBase jars to the Hadoop Classpath as well. Not sure why.. > I'm running this on a 6 node cloudera cluster which consist of 1 > jobtrackers and 5 tasktrackers.. > > After a while all my map jobs fail.. Completely baffled because the map > tasks were doing the required tasks.. > > > > On Wed, Aug 21, 2013 at 4:45 PM, manoj p <[email protected]> wrote: > > > For your code to run, please ensure if you use the correct HBase/Hadoop > jar > > versions while compiling your program. > > > > BR/Manoj > > > > > > On Wed, Aug 21, 2013 at 4:38 PM, manoj p <[email protected]> wrote: > > > > > Check your /etc/hosts file if you have the correct mapping to localhost > > > for 127.0.0.1. Also ensure that if you have hbase.zookeeper.quorum in > > your > > > configuration and also check if HBase classpath is appended to Hadoop > > > classpath. > > > > > > > > > BR/Manoj > > > > > > > > > On Wed, Aug 21, 2013 at 4:10 PM, Pavan Sudheendra <[email protected] > > >wrote: > > > > > >> Hadoop Namenode reports the following error which is unusual : > > >> > > >> > > >> 013-08-21 09:21:12,328 INFO org.apache.zookeeper.ClientCnxn: Opening > > >> socket > > >> connection to server localhost/127.0.0.1:2181. Will not attempt to > > >> authenticate using SASL (Unable to locate a login configuration) > > >> java.net.ConnectException: Connection refused > > >> at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) > > >> at > > >> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:567) > > >> at > > >> > > >> > > > org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:350) > > >> at > > >> org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1068) > > >> 2013-08-21 09:33:11,033 WARN > > >> org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: Possibly > > transient > > >> ZooKeeper exception: > > >> org.apache.zookeeper.KeeperException$ConnectionLossException: > > >> KeeperErrorCode = ConnectionLoss for /hbase > > >> 2013-08-21 09:33:11,033 INFO > org.apache.hadoop.hbase.util.RetryCounter: > > >> Sleeping 8000ms before retry #3... > > >> 2013-08-21 09:33:11,043 WARN org.apache.hadoop.mapred.Task: Parent > died. > > >> Exiting attempt_201307181246_0548_m_000022_2 > > >> > > >> > > >> Because i have specified the address in the java file > > >> Configuration conf = HBaseConfiguration.create(); > > >> conf.set("hbase.zookeeper.quorum", "10.34.187.170"); > > >> conf.set("hbase.zookeeper.property.clientPort","2181"); > > >> conf.set("hbase.master","10.34.187.170"); > > >> > > >> > > >> > > >> All my map tasks fail like this! Please help.. I'm on a timebomb > > >> -- > > >> Regards- > > >> Pavan > > >> > > > > > > > > > > > > -- > Regards- > Pavan >
