http://dl.dropbox.com/u/19454506/HadoopHIveHbaseReady.tar.gz Download this its pre connfigured hive and hbase. you need to change some settings accordingly specific to your linux settings...
On Fri, Jan 27, 2012 at 11:07 AM, Madhusudhana Rao Podila < madhusudhana_pod...@infosys.com> wrote: > Hi**** > > ** ** > > I have a problem in create a Hive table using existing HBase table (using > External Table concept) with multiple columns from column family (not using > as Map)**** > > ** ** > > *Case-1 :* > > I have created a table in HBase and able to map to Hive as an external > table just using only one column from the column family **** > > ** ** > > HBase **** > > Created the table in HBase using the following command**** > > **** > > hbase(main):001:0> create 'hbasetohive', 'colfamily'**** > > 0 row(s) in 1.9700 seconds**** > > ** ** > > hbase(main):002:0> put 'hbasetohive', '1s', 'colfamily:val','1strowval'*** > * > > 0 row(s) in 0.2240 seconds**** > > ** ** > > hbase(main):003:0> scan 'hbasetohive'**** > > ROW > COLUMN+CELL **** > > 1s column=colfamily:val, timestamp=1327676987075, > value=1strowva**** > > > l **** > > 1 row(s) in 0.0840 seconds**** > > ** ** > > *Hive* > > ** ** > > hive> CREATE EXTERNAL TABLE hbase_hivetable_k(key string, value string)*** > * > > > STORED BY 'org.apache.hadoop.hive.hbase.HBaseStorageHandler'**** > > > WITH SERDEPROPERTIES("hbase.columns.mapping" = "colfamily:val")**** > > > TBLPROPERTIES("hbase.table.name" = "hbasetohive");**** > > OK**** > > Time taken: 10.808 seconds**** > > hive> select * from hbase_hivetable_k;**** > > OK**** > > 1s 1strowval**** > > Time taken: 1.314 seconds**** > > ** ** > > *Case 2* > > ** ** > > I have created a table in HBase with column family as cf_cdr with two > columns caller_name, caller_number; Then I tried creating the Hive table > using the HBase table that got created by specifying both columns from the > column family, It is throwing Metaexteception: If I restrict to only one > column am able to create the table in Hive properly**** > > ** ** > > *HBase* > > hbase(main):004:0> create 'hb_cdr', 'cf_cdr'**** > > 0 row(s) in 1.4870 seconds**** > > ** ** > > hbase(main):005:0> put 'hb_cdr', 'cdr_r1', 'cf_cdr:caller_name', 'madhu'** > ** > > 0 row(s) in 0.0490 seconds**** > > ** ** > > hbase(main):006:0> put 'hb_cdr', 'cdr_r1', 'cf_cdr:caller_number', > '08877232010'**** > > 0 row(s) in 0.0300 seconds**** > > ** ** > > hbase(main):007:0> put 'hb_cdr', 'cdr_r2', 'cf_cdr:caller_name', 'bharat'* > *** > > 0 row(s) in 0.0170 seconds**** > > ** ** > > hbase(main):008:0> scan 'hb_cdr'**** > > ROW > COLUMN+CELL **** > > cdr_r1 column=cf_cdr:caller_name, timestamp=1327677898993, > value=mad**** > > > hu **** > > cdr_r1 column=cf_cdr:caller_number, > timestamp=1327677912648, value=0**** > > > 8877232010 > **** > > cdr_r2 column=cf_cdr:caller_name, timestamp=1327677919720, > value=bha**** > > > rat **** > > 2 row(s) in 0.1020 seconds**** > > ** ** > > *Hive* > > * * > > hive> CREATE EXTERNAL TABLE hv_hb_cdr(key string, c_name string, c_number > string)**** > > > STORED BY 'org.apache.hadoop.hive.hbase.HBaseStorageHandler'**** > > > WITH SERDEPROPERTIES("hbase.columns.mapping" = "cf_cdr:caller_name, > cf_cdr:caller_number")**** > > > TBLPROPERTIES("hbase.table.name" = "hb_cdr");**** > > FAILED: Error in metadata: MetaException(message:Column Family cf_cdr is > not defined in hbase table hb_cdr)**** > > FAILED: Execution Error, return code 1 from > org.apache.hadoop.hive.ql.exec.DDLTask**** > > ** ** > > Is there anything issue in the above script?**** > > ** ** > > Please suggest**** > > ** ** > > Regards**** > > Madhusudhana Rao. Podila**** > > ** ** > > **************** CAUTION - Disclaimer ***************** > This e-mail contains PRIVILEGED AND CONFIDENTIAL INFORMATION intended solely > for the use of the addressee(s). If you are not the intended recipient, please > notify the sender by e-mail and delete the original message. Further, you are > not > to copy, disclose, or distribute this e-mail or its contents to any other > person and > any such actions are unlawful. This e-mail may contain viruses. Infosys has > taken > every reasonable precaution to minimize this risk, but is not liable for any > damage > you may sustain as a result of any virus in this e-mail. You should carry out > your > own virus checks before opening the e-mail or attachment. Infosys reserves the > right to monitor and review the content of all messages sent to or from this > e-mail > address. Messages sent to or from this e-mail address may be stored on the > Infosys e-mail system. > ***INFOSYS******** End of Disclaimer ********INFOSYS*** > > -- Shashwat Shriparv