Question

I am using HBase for my application and I am trying to export the data using org.apache.hadoop.hbase.mapreduce.Export as it was directed here. The issue I am facing with the command is that once the command is executed, there are no errors while creating the export. But the specified output directoy does not appear at its place.The command I used was

$ bin/hbase org.apache.hadoop.hbase.mapreduce.Export table_name db_dump/

Answer 1

I got the solution hence I am replying my own answer

You must have following two lines in hadoop-env.sh in conf directory of hadoop

export HBASE_HOME=/home/sitepulsedev/hbase/hbase-0.90.4
export HADOOP_CLASSPATH=$HBASE_HOME/hbase-0.90.4.jar:$HBASE_HOME/conf:$HBASE_HOME/hbase-0.90.4-test.jar:$HBASE_HOME/lib/zookeeper-3.3.2.jar:$HBASE_HOME

save it and restart mapred by ./stop-mapred.sh and ./start-mapred.sh

now run in bin directory of hadoop

./hadoop  jar  ~/hbase/hbase-0.90.4/hbase-0.90.4.jar export your_table /export/your_table

Now you can verify the dump by hitting

./hadoop fs -ls /export

finally you need to copy the whole thing into your local file system for which run

./hadoop fs -copyToLocal /export/your_table ~/local_dump/your_table

here are the References that helped me out in export/import and in hadoop shell commands

Hope this one helps you out!!