Hi Mike,
Thank you.
This exception is pretty clear that during lucene execute readInternal(...)
on _0.cfs and encountered an npe. The root cause is because the object
being read, FileBlock is null. As far as i can tell, it happen only during
reading _0.cfs but not on the index files that were
That NPE is happening inside Cassandra's sources; I think you need to
trace what's happening there and how its FileBlock can be null?
It looks like it's a bug on how CassandraDirectory handles compound
files (e.g. _0.cfs), which are somewhat tricky because it's a file
that acts itself like a
Well, this will change your scores? MultiReader will sum up all term
statistics across all SegmentReaders up front, and then scoring per
segment will use those top-level weights.
Our app needs to do only matching and sorting. In-fact, it would be fully
OK to by-pass scoring. But I feel
Are you using or aware of Solandra? See:
https://github.com/tjake/Solandra
Solandra has been superceded by a commercial product, DataStax Enterprise
that combines Solr/Lucene and Cassandra. Solr/Lucene indexing of Cassandra
data is supported, but the actual Lucene indexes are stored in the
Good afternoon,
I am using Lucene in developing a protect, however I was faced with a
doubt.
I wonder if a multi-thread system it is possible to write concurrently?
Cumprimentos/ Best Regards
*Pedro Cardoso*
In general, both indexing and searching are highly concurrent in Lucene.
Mike McCandless
http://blog.mikemccandless.com
On Mon, Feb 17, 2014 at 9:54 AM, Pedro Cardoso pmcardoso@gmail.com wrote:
Good afternoon,
I am using Lucene in developing a protect, however I was faced with a
Hi Pedro,
Lucene indeed supports indexing data from several threads into a
single IndexWriter instance, and it will make use of all your I/O and
CPU. You can learn more about how it works at
http://blog.trifork.com/2011/05/03/lucene-indexing-gains-concurrency/
On Mon, Feb 17, 2014 at 3:54 PM,
On Mon, Feb 17, 2014 at 8:33 AM, Ravikumar Govindarajan
ravikumar.govindara...@gmail.com wrote:
Well, this will change your scores? MultiReader will sum up all term
statistics across all SegmentReaders up front, and then scoring per
segment will use those top-level weights.
Our app needs
The collector is collecting all the documents. Let's say I have 50k documents
and I want the collector to give me the results taking the start and
maxHits. Can we get this functionality from Lucene? For example, very first
time, I want to collect from 0 -100 the next time I want to collect from
Thanks for your great advice Ahmet. Do you know if I could use luwak libraries
in my Lucene project diretly? Or do I have to use Solr? Currently, we use core
lucene libraries in our system and have built our own framework around it.
regards
-Siraj
-Original Message-
From: Ahmet Arslan
Hi Siraj,
At the moment luwak is based on a fork of lucene
(https://github.com/flaxsearch/lucene-solr-intervals, itself based on work done
in LUCENE-2878), which we use to report exact match positions. I'm hoping to
get it working with the main lucene classes soon, though.
Alan Woodward
Hey Steve, thanks for the quick reply. I didn't have a chance to test again
until today. In our Lucene build, we had already made some customization to
the JFlex file and it re-generates the java file whenever we build our project.
Unfortunately, it is still not working for me. I diffed the
This is exactly what searchAfter is for (deep paging).
Mike McCandless
http://blog.mikemccandless.com
On Mon, Feb 17, 2014 at 3:12 PM, saisantoshi saisantosh...@gmail.com wrote:
The collector is collecting all the documents. Let's say I have 50k documents
and I want the collector to give me
Could you please elaborate on the above? I am not sure if the collector is
already doing it or do I need to call any other API?
Thanks,
Sai.
--
View this message in context:
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Sent
Sorry, Diego, the generated scanner diff doesn't tell me anything.
Since I was able to successfully make changes to the open source and get
the desired behavior, I'm guessing you're: a) not using the same (versions
of) tools as me; b) not using the same (version of the) source as me; or c)
not
As I mentioned in my original post, I am calling like the below:
MyCollector collector;
TopScoreDocCollector topScore =
TopScoreDocCollector.create(firstIndex+numHits, true);
IndexSearcher searcher = new IndexSearcher(reader);
try {
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