Did some investigations. Strange. ClassLoader parent = Classes.class.getClassLoader();
Returns null.... Can this be related to the JDK I use? (1.7.0_45) 2013/12/23 Jean-Marc Spaggiari <[email protected]> > I'm running HBase 0.94.15. > > time /home/hadoop/hadoop-1.2.1/bin/hadoop jar > /home/hbase/hbase-0.94.3/hbase-0.94.15.jar rowcounter > -Dmapred.map.tasks.speculative.execution=false > -Dhbase.client.scanner.caching=100 page_proposed > > I also tried to copy the guava jar into hadoop lib directory with no > success. > > I also tried with: > export HADOOP_CLASSPATH=`/home/hbase/hbase-0.94.3/bin/hbase > classpath`:`/home/hadoop/hadoop-1.2.1/bin/hadoop classpath`:. > > Same result. > > My folder is called 0.94.3 because I never changed its name into my > scripts, but it's 0.94.15 inside of it... > > JM > > > 2013/12/23 Ted Yu <[email protected]> > >> Which version of HBase do you use ? >> >> Can you show us the command line for RowCounter ? >> >> Thanks >> >> >> On Mon, Dec 23, 2013 at 8:11 AM, Jean-Marc Spaggiari < >> [email protected]> wrote: >> >> > Any idea why I'm getting this? >> > >> > Error: java.lang.ClassNotFoundException: >> > com.google.common.base.Preconditions >> > at java.net.URLClassLoader$1.run(URLClassLoader.java:366) >> > at java.net.URLClassLoader$1.run(URLClassLoader.java:355) >> > at java.security.AccessController.doPrivileged(Native Method) >> > at java.net.URLClassLoader.findClass(URLClassLoader.java:354) >> > at java.lang.ClassLoader.loadClass(ClassLoader.java:423) >> > at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) >> > at java.lang.ClassLoader.loadClass(ClassLoader.java:356) >> > at >> > >> > >> org.apache.hadoop.hbase.util.ClassLoaderBase.<init>(ClassLoaderBase.java:58) >> > at >> > >> > >> org.apache.hadoop.hbase.util.DynamicClassLoader.<init>(DynamicClassLoader.java:87) >> > at org.apache.hadoop.hbase.util.Classes.<clinit>(Classes.java:41) >> > at org.apache.hadoop.hbase.client.Scan.readFields(Scan.java:624) >> > at >> > >> > >> org.apache.hadoop.hbase.mapreduce.TableMapReduceUtil.convertStringToScan(TableMapReduceUtil.java:379) >> > at >> > >> > >> org.apache.hadoop.hbase.mapreduce.TableInputFormat.setConf(TableInputFormat.java:107) >> > 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:722) >> > at org.apache.hadoop.mapred.MapTask.run(MapTask.java:364) >> > at org.apache.hadoop.mapred.Child$4.run(Child.java:255) >> > at java.security.AccessController.doPrivileged(Native Method) >> > at javax.security.auth.Subject.doAs(Subject.java:415) >> > at >> > >> > >> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1190) >> > at org.apache.hadoop.mapred.Child.main(Child.java:249) >> > >> > >> > Initially I tought it was because of the guava lib. So I ugraded it to >> 14, >> > same result. I tought then it was because I was using a very old 1.0.3 >> > hadoop version so I upgraded it to 1.2.1 (went very well, pretty >> simple). >> > Still same issue. (Yes I copied hadoop jar to hbase lib). >> > >> > This missing class is into guava 11.0.2 jar. My own MR jobs are running >> > well, HBase is running well, et. Just RowCounter is not working. >> > >> > Any idea? >> > >> > Thanks, >> > >> > JM >> > >> > >
