On using PIG and hbase, this is the issue: https://issues.apache.org/jira/browse/PIG-6. It was committed a while back. Have you tried referencing hbase in your PIG latin? St.Ack
On Wed, Apr 22, 2009 at 9:34 AM, stack <[email protected]> wrote: > What do you need Ninad? > > There are general notes on running hbase MR jobs in the mapred package: > http://hadoop.apache.org/hbase/docs/r0.19.1/api/org/apache/hadoop/hbase/mapred/package-summary.html. > Discusses CLASSPATH on your hadoop cluster. > > Thereafter, running the BuildIndexTable job, after doing above suggested > setup, looks like you'd do: > > ./bin/hadoop org.apache.hadoop.hbase.mapred.BuildIndexTable > > Will probably barf and tell you the command line options you are missing -- > probably target directory for lucene indices, the table to index and the > columns in the table to consider. > > No harm studying the source code in absence of better documentation. > > IIRC, this job will build as many lucene indices as there are reducers. > > Start with a small table and a single reducer. See how it goes. > > You'll have to copy the index out of hdfs to use it I'd imagine. > > St.Ack > > > On Tue, Apr 21, 2009 at 11:12 PM, Ninad Raut > <[email protected]>wrote: > >> Thanks JD. >> >> Can u help me with this one with a small code snippet, as an example >> ?... There is not much dicussion on this .. vl require your help in >> this. >> >> On 4/21/09, Jean-Daniel Cryans <[email protected]> wrote: >> > Ninad, >> > >> > There is no index apart from the primary key so you are right, out of >> > the box HBase doesn't directly provide such a facility. You can either >> > index your table by hand using preferably a MapReduce job or use the >> > BuildTableIndex provided in mapred. See >> > >> http://hadoop.apache.org/hbase/docs/r0.19.1/api/org/apache/hadoop/hbase/mapred/BuildTableIndex.html >> > >> > J-D >> > >> > On Tue, Apr 21, 2009 at 5:04 AM, Ninad Raut <[email protected] >> > >> > wrote: >> >> Suppose I have a Column Family called Status: which holds status >> >> value. If I want to find how many values are there which have >> >> Status=UNANALYSED I cannot do so using hbase shell.. is there any >> >> other way??? >> >> >> >> On 4/21/09, Billy Pearson <[email protected]> wrote: >> >>> there is multi ways to query hbase there's >> >>> hbase shell >> >>> thrift >> >>> rest >> >>> java api >> >>> and I thank a few more. >> >>> >> >>> The easiest with out having to write code or anything would be hbase >> >>> shell >> >>> if just wanting to check manually if something is there or the value >> of >> >>> it. >> >>> >> >>> Billy >> >>> >> >>> "Ninad Raut" <[email protected]> >> >>> wrote in message >> >>> news:[email protected]... >> >>>> Hi, >> >>>> >> >>>> As there is no easy way to query HBase, can pig be used to query >> HBase >> >>>> tables? >> >>>> If so, can any one give me an example as to how to use it.... >> >>>> >> >>>> >> >>>> Regards, >> >>>> Ninad. >> >>>> >> >>> >> >>> >> >>> >> >> >> > >> > >
