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From Jean-Marc Spaggiari <jean-m...@spaggiari.org>
Subject Re: : Rows count
Date Mon, 25 Jun 2012 00:46:27 GMT
Seems that I'm missing something. I'm running HBase and Hadoop
separatly. How can I give to Hadoop the HBase jars? I'm not sure about
the right way to do it...

hadoop@latitude:~/hadoop-1.0.3$ ./bin/hadoop jar
/home/hbase/hbase-0.94.0/hbase-0.94.0.jar rowcount test3
Exception in thread "main" java.lang.NoClassDefFoundError:
        at org.apache.hadoop.hbase.mapreduce.Driver.main(Driver.java:43)
        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:601)
        at org.apache.hadoop.util.RunJar.main(RunJar.java:156)
Caused by: java.lang.ClassNotFoundException: com.google.common.collect.Multimap
        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 java.lang.ClassLoader.loadClass(ClassLoader.java:356)
        ... 6 more

2012/6/24, Dhaval Shah <prince_mithibai@yahoo.co.in>:
> Instead of the shell rowcount you can use the MR job for rowcount..
> something like
> hadoop jar path_to_hbase.jar rowcount your_table
> The MR job is much faster than the shell
> ------------------------------
> On Mon 25 Jun, 2012 4:52 AM IST Jean-Marc Spaggiari wrote:
>>In HBASE-1512 (https://issues.apache.org/jira/browse/HBASE-1512) there
>>is the implementation of co-processor for count and others.
>>Is there anywhere an example of the way to use them? Because the shell
>>count is very slow with there is to many rows.

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