Can you try creating a table like this:
CREATE EXTERNAL TABLE hbase_table_2(key int, value string)
STORED BY 'org.apache.hadoop.hive.hbase.HBaseStorageHandler'
WITH SERDEPROPERTIES ("hbase.columns.mapping" = ":key,cf1:val")
TBLPROPERTIES ("hbase.table.name" = "xyz");
Now do a select * from hbase_table_2;
Do you see any data now?
On Thu, Oct 4, 2012 at 5:10 PM, <alx...@aim.com> wrote:
> Hi,
>
> In the hbase table I do not see column qualifier, only family.
> For testing connection to hbase I also created a table using
>
> CREATE TABLE hbase_table_1(key int, value string)
> STORED BY 'org.apache.hadoop.hive.hbase.HBaseStorageHandler'
> WITH SERDEPROPERTIES ("hbase.columns.mapping" = ":key,cf1:val")
> TBLPROPERTIES ("hbase.table.name" = "xyz");
>
> I see xyz table in hbase. then I added a row in hbase using put 'xyz',
> 'row1', 'cf1', 'abc'
>
>
> Then in hive I did: select * from hbase_table_1;
> No results are returned, but scan xys in hbase returns 1 row.
>
> Thanks.
>
> Alex.
>
> -----Original Message-----
> From: kulkarni.swarnim <kulkarni.swar...@gmail.com>
> To: user <user@hive.apache.org>
> Sent: Thu, Oct 4, 2012 3:00 pm
> Subject: Re: no data in external table
> > "hbase.columns.mapping" = ":key,mtdt:string,il:string,ol:string"
>
> This doesn't look right. The mapping should be of form
> COLUMN_FAMILY:COLUMN_QUALIFIER. In this case it seems to be
> COLUMN_FAMILY:TYPE which is not right.
>
> On Thu, Oct 4, 2012 at 3:25 PM, <alx...@aim.com> wrote:
>
>> Hi,
>>
>> In hive shell I did
>>
>> create external table myextrenaltable (key string, metadata string,
>> inlinks string, outlinks string) stored by
>> 'org.apache.hadoop.hive.hbase.HBaseStorageHandler'
>> with serdeproperties ("hbase.columns.mapping" =
>> ":key,mtdt:string,il:string,ol:string")
>> tblproperties ("hbase.table.name" = "myextrenaltable");
>>
>> In tasktracker log I do not see anything relevant to hbase. In jobdetails
>> page I see a few successful jobs. in hive shell I see
>>
>> Total MapReduce jobs = 1
>> Launching Job 1 out of 1
>> Number of reduce tasks is set to 0 since there's no reduce operator
>> Starting Job = job_201210031146_0016, Tracking URL =
>> http://localhost:50030/jobdetails.jsp?jobid=job_201210031146_0016
>> Kill Command = /home/dev/hadoop-0.20.2/bin/../bin/hadoop job
>> -Dmapred.job.tracker=localhost:9001 -kill job_201210031146_0016
>> Hadoop job information for Stage-1: number of mappers: 1; number of
>> reducers: 0
>> 2012-10-04 13:19:06,581 Stage-1 map = 0%, reduce = 0%
>> 2012-10-04 13:19:12,629 Stage-1 map = 100%, reduce = 0%
>> 2012-10-04 13:19:15,657 Stage-1 map = 100%, reduce = 100%
>> Ended Job = job_201210031146_0016
>> MapReduce Jobs Launched:
>> Job 0: Map: 1 HDFS Read: 0 HDFS Write: 0 SUCCESS
>> Total MapReduce CPU Time Spent: 0 msec
>> OK
>> Time taken: 17.47 seconds
>>
>>
>>
>> Thanks in advance.
>> Alex.
>>
>> -----Original Message-----
>> From: Ted Yu <yuzhih...@gmail.com>
>> To: user <user@hive.apache.org>
>> Sent: Thu, Oct 4, 2012 11:33 am
>> Subject: Re: no data in external table
>>
>> Can you tell us how you created mapping for the existing table ?
>>
>> In task log, do you see any connection attempt to HBase ?
>>
>> Cheers
>>
>> On Thu, Oct 4, 2012 at 11:30 AM, <alx...@aim.com> wrote:
>>
>>> Hello,
>>>
>>> I use hive-0.9.0 with hadoop-0.20.2 and hbase -0.92.1. I have created
>>> external table, mapping it to an existing table in hbase. When I do "select
>>> * from myextrenaltable" it returns no results, although scan in hbase shows
>>> data, and I do not see any errors in jobtracker log.
>>>
>>> Any ideas how to debug this issue.
>>>
>>> Thanks.
>>> Alex.
>>>
>>
>>
>
>
> --
> Swarnim
>
--
Swarnim
