Hi
I know I these are Lucene index. But did not know much how to
use them. I copied the index on local directory and run a Lucene
searcher and provide the path where indexes are stored. When I run the
code it gives me exception:
Exception in thread "main" java.io.FileNotFoundException:
C:\index\segments (The system cannot find the file specified)
at java.io.RandomAccessFile.open(Native Method)
at java.io.RandomAccessFile.<init>(Unknown Source)
at
org.apache.lucene.store.FSIndexInput$Descriptor.<init>(FSDirectory.java:
425)
at
org.apache.lucene.store.FSIndexInput.<init>(FSDirectory.java:434)
at
org.apache.lucene.store.FSDirectory.openInput(FSDirectory.java:324)
at
org.apache.lucene.index.SegmentInfos.read(SegmentInfos.java:45)
at
org.apache.lucene.index.IndexReader$1.doBody(IndexReader.java:148)
at org.apache.lucene.store.Lock$With.run(Lock.java:109)
at
org.apache.lucene.index.IndexReader.open(IndexReader.java:143)
at
org.apache.lucene.index.IndexReader.open(IndexReader.java:138)
at
org.apache.lucene.search.IndexSearcher.<init>(IndexSearcher.java:47)
at com.honeywell.dejavu.Searcher.search(Searcher.java:40)
at com.honeywell.dejavu.Searcher.main(Searcher.java:34)
But in index folder there are two files are present that I copied from
HDFS.
a. segments.gen
b. segments_uy
Please tell me how I can use this Lucene indexes.
Thanks & Regards
Aseem Puri
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of
stack
Sent: Tuesday, April 28, 2009 9:49 PM
To: [email protected]
Subject: Re: search on HBase
They are lucene indices. Do you not know what to do with them? (You
need
to open a lucene Searcher -- or whatever its called these days -- and
pass
path to your index ... or open a MultiSearcher across all indices. Then
run
queries).
St.Ack
On Tue, Apr 28, 2009 at 4:24 AM, Puri, Aseem
<[email protected]>wrote:
> Thanks Stack and Lars
>
> My exception is solved. I able to run that program and I got
> some files in my output directory. But I don't know how I can use them
> for my search purpose. Can you please tell me how I should proceed now
> so I can make search HBase?
>
> Thanks & Regards
> Aseem Puri
>
> -----Original Message-----
> From: Lars George [mailto:[email protected]]
> Sent: Tuesday, April 28, 2009 3:57 PM
> To: [email protected]
> Subject: Re: search on HBase
>
> Hi Aseem,
>
> As Stack suggests, you have to make sure both Lucene libs are in the
> Hadoop classpath, i.e. added to the HADOOP_CLASSPATH in hadoop-env.sh.
> This includes lucene-core-x.y.z.jar as well as
> lucene-analyzers-x.y.z.jar. The latter seems to be missing from yours.
>
> Lars
>
>
> Puri, Aseem wrote:
> > Hi
> > During while running BuildTableIndex I got this exception. Can
> > anybody tell about how I can solve this exception?
> >
> > 09/04/26 16:24:23 WARN mapred.JobClient: Use GenericOptionsParser
for
> > parsing the arguments. Applications should implement Tool for the
> same.
> > 09/04/26 16:24:24 INFO mapred.TableInputFormatBase: split:
0->master:,
> > 09/04/26 16:24:25 INFO mapred.JobClient: Running job:
> > job_200904261454_0018
> > 09/04/26 16:24:26 INFO mapred.JobClient: map 0% reduce 0%
> > 09/04/26 16:24:41 INFO mapred.JobClient: map 100% reduce 0%
> > 09/04/26 16:25:03 INFO mapred.JobClient: Task Id :
> > attempt_200904261454_0018_r_000000_0, Status : FAILED
> > java.io.IOException: Error in creating an analyzer object
> > org.apache.lucene.analysis.standard.StandardAnalyzer
> > at
> >
>
org.apache.hadoop.hbase.mapred.IndexOutputFormat.getRecordWriter(IndexOu
> > tputFormat.java:75)
> > at
org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:404)
> > at org.apache.hadoop.mapred.Child.main(Child.java:158)
> >
> >
> > Thanks & Regards
> > Aseem Puri
> >
> > -----Original Message-----
> > From: Stack [mailto:[email protected]]
> > Sent: Wednesday, April 22, 2009 9:32 PM
> > To: [email protected]
> > Subject: Re: search on HBase
> >
> > See the build table index mr job in the hbase mapred package
> >
> > Stack
> >
> >
> >
> > On Apr 22, 2009, at 8:21, "Puri, Aseem" <[email protected]>
> > wrote:
> >
> >
> >> Hi
> >>
> >> I am a new HBase user. I have a table in which I am
> storing
> >> data. Can anybody tell me how should I search values in table with
> >> help
> >> of map reduce. If somebody have some code snippet then please share
> >> with
> >> me.
> >>
> >>
> >>
> >> Thanks & Regards
> >>
> >> Aseem Puri
> >>
> >>
> >>
> >>
> >
> >
>
