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
