# sudo -u hbase hadoop jar /usr/lib/hbase/hbase.jar rowcounter
-Dmapred.map.tasks.speculative.execution=false
-Dhbase.client.scanner.caching=100 dsp_cookie_mapping
Exception in thread "main" java.lang.NoClassDefFoundError:
org/apache/hadoop/mapreduce/Job
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2531)
at java.lang.Class.getMethod0(Class.java:2774)
at java.lang.Class.getMethod(Class.java:1663)
at
org.apache.hadoop.util.ProgramDriver$ProgramDescription.<init>(ProgramDriver.java:60)
at
org.apache.hadoop.util.ProgramDriver.addClass(ProgramDriver.java:103)
at org.apache.hadoop.hbase.mapreduce.Driver.main(Driver.java:36)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.hadoop.util.RunJar.main(RunJar.java:208)
Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.mapreduce.Job
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
... 12 more
# rpm -qa|grep hbase
hbase-regionserver-0.94.6+132-1.cdh4.4.0.p0.17.el6.x86_64
hbase-0.94.6+132-1.cdh4.4.0.p0.17.el6.x86_64
On Wed, May 21, 2014 at 7:18 PM, Jean-Marc Spaggiari <
[email protected]> wrote:
> You can use the MR method:
>
> hadoop jar /home/hbase/hbase-0.94.3/hbase-0.94.19.jar rowcounter
> -Dmapred.map.tasks.speculative.execution=false
> -Dhbase.client.scanner.caching=100 work_proposed
>
> JM
>
>
> 2014-05-21 7:07 GMT-04:00 ch huang <[email protected]>:
>
> > hi,maillist:
> > i use count 'table' in hbase shell,but it very slow,how can i
> > get rows of a table quickly?
> >
>
