I copied zookeeper-3.2.1.jar after seeing the exception below. Turns out that I have to restart job tracker to refresh classpath :-(
On Thu, Apr 8, 2010 at 3:03 PM, Jean-Daniel Cryans <jdcry...@apache.org>wrote: > Zookeeper jar isn't in the path of hadoop? > > btw https://issues.apache.org/jira/browse/HBASE-2335 > > J-D > > On Thu, Apr 8, 2010 at 2:58 PM, Ted Yu <yuzhih...@gmail.com> wrote: > > I ran hbase export in cluster mode. > > > > From Saturn: > > 10/04/07 14:18:22 INFO zookeeper.ClientCnxn: zookeeper. > > disableAutoWatchReset is false > > 10/04/07 14:18:22 INFO zookeeper.ClientCnxn: Attempting connection to > server > > uranus/10.10.31.18:2181 > > 10/04/07 14:18:22 INFO zookeeper.ClientCnxn: Priming connection to > > java.nio.channels.SocketChannel[connected local=/10.10.31.16:34170 > remote=uranus/ > > 10.10.31.18:2181] > > 10/04/07 14:18:22 INFO zookeeper.ClientCnxn: Server connection successful > > 10/04/07 14:18:22 INFO mapreduce.TableInputFormatBase: split: > 0*->Neptune*:, > > 10/04/07 14:18:23 INFO mapred.JobClient: Running job: > job_201004051529_0015 > > 10/04/07 14:18:24 INFO mapred.JobClient: map 0% reduce 0% > > 10/04/07 14:18:36 INFO mapred.JobClient: Task Id : > > attempt_201004051529_0015_m_000000_0, Status : FAILED > > Error: java.lang.ClassNotFoundException: org.apache.zookeeper.Watcher > > at java.net.URLClassLoader$1.run(URLClassLoader.java:200) > > at java.security.AccessController.doPrivileged(Native Method) > > at java.net.URLClassLoader.findClass(URLClassLoader.java:188) > > at java.lang.ClassLoader.loadClass(ClassLoader.java:307) > > at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) > > at java.lang.ClassLoader.loadClass(ClassLoader.java:252) > > at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320) > > at java.lang.ClassLoader.defineClass1(Native Method) > > at java.lang.ClassLoader.defineClass(ClassLoader.java:621) > > at > > java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124) > > at java.net.URLClassLoader.defineClass(URLClassLoader.java:260) > > at java.net.URLClassLoader.access$000(URLClassLoader.java:56) > > at java.net.URLClassLoader$1.run(URLClassLoader.java:195) > > at java.security.AccessController.doPrivileged(Native Method) > > at java.net.URLClassLoader.findClass(URLClassLoader.java:188) > > at java.lang.ClassLoader.loadClass(ClassLoader.java:307) > > at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) > > at java.lang.ClassLoader.loadClass(ClassLoader.java:252) > > at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320) > > at > > > org.apache.hadoop.hbase.client.HConnectionManager.getClientZooKeeperWatcher(HConnectionManager.java:151) > > at > > > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.getZooKeeperWrapper(HConnectionManager.java:885) > > at > > > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRootRegion(HConnectionManager.java:901) > > at > > > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:580) > > at > > > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:556) > > at > > > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegionInMeta(HConnectionManager.java:630) > > at > > > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:589) > > at > > > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:556) > > at > > > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegionInMeta(HConnectionManager.java:630) > > at > > > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:593) > > at > > > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:556) > > at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:127) > > at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:105) > > at > > > org.apache.hadoop.hbase.mapreduce.TableInputFormat.setConf(TableInputFormat.java:73) > > at > > org.apache.hadoop.util.ReflectionUtils.setConf(ReflectionUtils.java:62) > > at > > > org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:117) > > at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:536) > > at org.apache.hadoop.mapred.MapTask.run(MapTask.java:305) > > at org.apache.hadoop.mapred.Child.main(Child.java:170) > > > > I wonder why the above exception was thrown because we have same hbase > > deployment on all the servers: > > [r...@neptune software]# ls -l lib/zookeeper-3.2.1.jar > > -rwxr-xr-x 1 hbaseadmin hbaseadmin 913093 Oct 7 11:55 > > lib/zookeeper-3.2.1.jar > > > > Can someone shed some light on how to get over the above exception ? > > > > Thanks > > >
