Wednesday, 27 November 2013

HBASE TABLE ROW COUNT



STEP 1:-

Rowcounter  is a mapreduce job to count all the rows of a table. This is a good utility to use as a sanity check to ensure that HBase can read all the blocks of a table if there are any concerns of metadata inconsistency. It will run the mapreduce all in a single process but it will run faster if you have a MapReduce cluster in place for it to exploit.

 

hbase org.apache.hadoop.hbase.mapreduce.RowCounter <tablename>
[ nitin@nitin-ubuntu:~] # hbase org.apache.hadoop.hbase.mapreduce.RowCounter TARGET_TBL_NAME
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