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72 discussions - 302 posts

  • Hi, If I want to improve performance, which of the following is better and why? 1. Buy a machine with a lot of RAM and use a RAMDirectory for the index. 2. Put the index on a solid state drive. By ...
    Dragon FlyDragon Fly
    Jul 18, 2012 at 3:51 pm
    Jul 27, 2012 at 10:52 pm
  • Is it possible to delete by docId in lucene 4? I can delete by docid in lucene 3 using IndexReader.deleteDocument(int docId), but that method is gone in lucene 4, and IndexWriter only allows deleting ...
    Sean BridgesSean Bridges
    Jul 12, 2012 at 1:10 am
    Jul 13, 2012 at 4:40 am
  • I created an index using Lucene 3.6.0 in which I specified that a certain text field in each document should be indexed, stored, analyzed with no norms, with term vectors, offsets and positions ...
    Mike O'LearyMike O'Leary
    Jul 19, 2012 at 11:17 pm
    Aug 24, 2012 at 6:04 pm
  • Hi, I have the following situation: I have two pretty large indices. One consists of about 1 billion documents (takes ~6GB on disk) and the other has about 2 billion documents (~10GB on disk). The ...
    Doron YaacobyDoron Yaacoby
    Jul 15, 2012 at 8:41 am
    Jul 19, 2012 at 6:25 am
  • Dear list, I'm considering to use Lucene for indexing sequences of part-of-speech (POS) tags instead of words; for those who don't know, POS tags are linguistically motivated labels that are assigned ...
    Carsten SchnoberCarsten Schnober
    Jul 30, 2012 at 1:07 pm
    Aug 7, 2012 at 11:17 am
  • Hi, I have following dataset indexed in Lucene. 2010-04-21 02:24:01 GET /blank 200 120 2010-04-21 02:24:01 GET /US/registrationFrame 200 605 2010-04-21 02:24:02 GET /US/kids/boys 200 785 2010-04-21 ...
    Deepak ShakyaDeepak Shakya
    Jul 22, 2012 at 3:18 pm
    Jul 26, 2012 at 1:37 pm
  • I see some behavior at the moment when I'm flushing and would like to know if I can change that. One main thread is inserting, when it flushes, it blocks. During that time my main thread is ...
    Simon McDuffSimon McDuff
    Jul 19, 2012 at 4:55 pm
    Jul 21, 2012 at 7:33 am
  • I want store some data like 00:00:00.123,it's string,i want print it as date .because i want sort it as date's increase. -- View this message in context ...
    SamSam
    Jul 11, 2012 at 8:32 am
    Jul 16, 2012 at 8:42 am
  • I have used standardAnalyser to save the ANALYZED data in index. Data is as below:- 1. foo bag test 2. foo bar test 3. bar india foo I used When i search using--------------- foo ba I get all results ...
    Hiren ShahHiren Shah
    Jul 4, 2012 at 6:11 am
    Jul 4, 2012 at 10:05 pm
  • Hi all in my app (Lucene 3.5.0 powered) I index the documents (not too many, say up to 100k) using the RAMDirectory. Then I need to send the segment over the network to be merged with the existing ...
    Konstantyn SmirnovKonstantyn Smirnov
    Jul 11, 2012 at 10:18 am
    May 21, 2013 at 1:17 pm
  • Hello, I'm using ElisionFilter to index french text. The filter works but ignore the d letter followed by an apostrophe (example: d'une). Is-it an expected behaviour or is it an issue ? Regards, ...
    Yamo93Yamo93
    Jul 25, 2012 at 1:02 pm
    Jul 26, 2012 at 1:56 pm
  • Hi, I am using 3.4.0 and just discovered a weird issue. I have a set of simple English one-word queries and two target files that I want to search. One has all these queries in one line, i.e ...
    Ilya ZavorinIlya Zavorin
    Jul 13, 2012 at 4:28 pm
    Jul 13, 2012 at 6:43 pm
  • I want seach a txt ,which is store like <2012-07-06 11:11:43 some message at one line .How to seach that,I need get the time and content. -- View this message in context ...
    SamSam
    Jul 6, 2012 at 3:16 am
    Jul 10, 2012 at 9:12 am
  • Hi, I've an index to analyze (manually). Unfortunately, I cannot rebuild the index. Some of the fields are 'unstored'. I was wondering whether there's any way to get the terms from an unstored field ...
    Phanindra RPhanindra R
    Jul 26, 2012 at 4:57 pm
    Jul 27, 2012 at 10:15 pm
  • Hello Everyone, We have a legacy system which uses lucene 2.4.1. We have ported a small hack to lucene source code back then, so that the underlying lucene segment merger code wouldn't reuse deleted ...
    Snehal.chennuruSnehal.chennuru
    Jul 22, 2012 at 11:17 pm
    Jul 25, 2012 at 10:27 pm
  • Hi, My log files are showing the below exceptions almost at twice a minute frequency. what is causing it and how can i fix it? I am not using lucene directly but instead using elasticsearch (0.18.7 ...
    T Vinod GuptaT Vinod Gupta
    Jul 8, 2012 at 7:58 pm
    Jul 10, 2012 at 10:11 am
  • Hi all, I have an application which holds a list of documents. These documents are indexed using Lucene. I can search on keywords of the documents. I loop the TopDocs and get the ID field (of each ...
    Jochen HebbrechtJochen Hebbrecht
    Jul 3, 2012 at 7:56 am
    Jul 3, 2012 at 10:35 am
  • If I want to set up a database that is totally flat with no joins, is there any reason not to use lucene. The reasons I would be curious about are things like insert performance and whether there are ...
    Hank WilliamsHank Williams
    Jul 26, 2012 at 5:17 pm
    Aug 1, 2012 at 11:13 am
  • Hi, I'm trying to create a phrase query with wildcard, from the forums it seems that the solution is not trivial. I'm trying to create the following queries: "this is a phrase*" OR "*This is a ...
    Levin, IlyaLevin, Ilya
    Jul 22, 2012 at 8:30 am
    Jul 23, 2012 at 1:21 pm
  • I also posted this to StackOverflow, apologies if you see this twice. I have a data set whereby documents are associated to a user id. Say that the documents represent books, and each book can have ...
    UncleUncle
    Jul 22, 2012 at 3:07 pm
    Jul 23, 2012 at 12:01 pm
  • Dear developers, while upgrading from 3.6.x to 4.x I have to rewrite some of my code and search for the new methods and/or classes. In 3.6.x and older versions the API Javadoc interface had an ...
    Bernd FehlingBernd Fehling
    Jul 18, 2012 at 11:48 am
    Jul 19, 2012 at 7:21 am
  • Hello all, I have more than one record having same time stamp. When i sort by date time in decending order, the set of records which have same time stamp are displayed in the order of insertion ...
    GaneshGanesh
    Jul 17, 2012 at 10:54 am
    Jul 18, 2012 at 5:12 pm
  • We have an application that has to do "real time" indexing of a number of documents. What it does is wake up about every 20 seconds and updates the index with any changes that have been queued since ...
    Scott SmithScott Smith
    Jul 16, 2012 at 8:30 pm
    Jul 18, 2012 at 4:55 pm
  • Hi Folks, I need your help in determining whether we upgrade to 3.6 or wait till 4.0 becomes stable. We are currently using 2.x version of lucene and would like to upgrade to 3.6(and 4.0 ...
    Nilesh VijaywargiayNilesh Vijaywargiay
    Jul 17, 2012 at 9:14 pm
    Jul 18, 2012 at 9:30 am
  • Hi all, Imagine you have the following books which are indexed using Lucene book1 - title: "foo bar test" book2 - title: "foo barrr test" book3 - title: "foo bar bar" I want to find book1 and book2 ...
    Jochen HebbrechtJochen Hebbrecht
    Jul 3, 2012 at 3:59 pm
    Jul 5, 2012 at 1:03 pm
  • Given that the Alpha is out, are there any more or less definitive guidelines on when 4.0 will be officially released? Hopefully, someone probably has a ballpark estimate on this, give or take a few ...
    Vitaly FunsteinVitaly Funstein
    Jul 31, 2012 at 3:11 am
    Sep 14, 2012 at 11:14 pm
  • I have one more question to pose to the group today: I have several thousand searches being performed against MemoryIndexes on a regular basis. I'd like the ability for each search to choose it's own ...
    Dave SeltzerDave Seltzer
    Jul 12, 2012 at 8:14 pm
    Aug 17, 2012 at 9:39 pm
  • Hi All I created a Lucene index for over 3 million document, and I used term vectors to create the index.now for an external document I need to use Lucene to find the most similar documents from the ...
    Elshaimaa AliElshaimaa Ali
    Jul 30, 2012 at 2:00 pm
    Jul 30, 2012 at 7:09 pm
  • i have requirement that have to search multiple words in paragraph and in line depending upon the situation. how can i do this in lucene. im using Lucene2.9. -- View this message in context ...
    Neerajshah84Neerajshah84
    Jul 25, 2012 at 5:21 am
    Jul 27, 2012 at 4:48 am
  • how can i put multiplue proximity search in lucene?? example :- i want to search like "fear,dark" in two words and dark adjucent to "tight" and tight,free in 3 words. Query :- fear2dark tight3free ...
    Neerajshah84Neerajshah84
    Jul 25, 2012 at 5:14 am
    Jul 26, 2012 at 2:37 pm
  • This probably belongs in the JIRA, and is related to https://issues.apache.org/jira/browse/LUCENE-4025, but java.util.Lock.lock() doesn't throw anything. I believe the author of the change originally ...
    Vitaly FunsteinVitaly Funstein
    Jul 21, 2012 at 3:27 am
    Jul 22, 2012 at 1:41 am
  • HI buddy, In gmail,there are many accounts,how google manage to search individual email without the risk of search other accounts email?If there are *huge* account,small index may knock down the ...
    齐保元齐保元
    Jul 18, 2012 at 8:57 am
    Jul 18, 2012 at 4:55 pm
  • Hello All! I'm trying to run a FilteredQuery over a BooleanQuery full of term and range queries. In my custom filter, in the getDocSet method, the indexReader contains the entire index segment. My ...
    James NolanJames Nolan
    Jul 13, 2012 at 5:26 pm
    Jul 17, 2012 at 4:36 pm
  • Dear list, I am working on a search application that depends on retrieving offsets for each match. Currently (in Lucene 3.6), this seems to be overly costly, at least in my solution that looks like ...
    Carsten SchnoberCarsten Schnober
    Jul 13, 2012 at 12:30 pm
    Jul 17, 2012 at 1:37 pm
  • Hello, I have recently run into the situation when there was not a sufficient amount of direct memory available for IndexWriter to work. This was essentially caused by the embedding application ...
    Vitaly FunsteinVitaly Funstein
    Jul 10, 2012 at 3:00 am
    Jul 13, 2012 at 7:57 pm
  • Hello all, I am currently using v3.0.3 and planning to upgrade to v3.6. Shall i go ahead with the upgrade OR wait for 4.0? Regards Ganesh ...
    GaneshGanesh
    Jul 10, 2012 at 4:29 am
    Jul 10, 2012 at 7:37 am
  • Hello, we have a small internet shop which uses lucene for product search. With increasing traffic we have continuos problem with literaly hundreds of threads being BLOCKED in lucene code: here is an ...
    Leon RosenbergLeon Rosenberg
    Jul 6, 2012 at 7:29 pm
    Jul 9, 2012 at 7:23 pm
  • Thanks Mike for the wonderful work on ToParentBlockJoinQuery. We had a use case for Relational data search and are working with ToParentBlockJoinQuery which works perfectly as mentioned @ ...
    Jayendra PatilJayendra Patil
    Jul 25, 2012 at 11:38 am
    Aug 3, 2012 at 12:26 pm
  • Hi Team, I would like to know if Lucene 4.0 will support facetted search. Thanks in advance. Best regards, Ranjith... [cid:image001.gif@01CD6B26.B4C4D460]Ranjith Ratna Kumar S / Capgemini India / ...
    Subramanian, RanjithSubramanian, Ranjith
    Jul 26, 2012 at 4:21 pm
    Jul 27, 2012 at 10:43 pm
  • hi, I have two collections:the first collection has documents like 'docID,content', and the other collection has documents like 'docID,ratings'.Is there any fast algorithm to get the intersection ...
    齐保元齐保元
    Jul 20, 2012 at 9:59 am
    Jul 21, 2012 at 3:29 am
  • I'm using Lucene 4.0. I'm inserting around 300 000 documents / seconds. We do not have any store fields. But we noticed that .fdt get populated even so. .fdx contains useless informations. .fdt ...
    Simon McDuffSimon McDuff
    Jul 19, 2012 at 12:27 pm
    Jul 19, 2012 at 3:37 pm
  • Hi, I'm using Lucene 4.0. I would like to index String, but since my system required High volume I need to reuse always the same memory. No question to use String. My process receives bytes and I can ...
    Simon McDuffSimon McDuff
    Jul 18, 2012 at 2:35 pm
    Jul 18, 2012 at 4:10 pm
  • Is there a way to know which sub-clause of a boolean query matched in the result document ? Currently I am using searcher.explain() on each of the sub-clause of the boolean query (on each of the ...
    Ashish JaenAshish Jaen
    Jul 18, 2012 at 11:18 am
    Jul 18, 2012 at 2:23 pm
  • Hi,buddy: I have a problem concerning index readers:there are many small index/searcher instances in my application which are hold by a map.when new index request or seach request comes,I process ...
    齐保元齐保元
    Jul 16, 2012 at 6:58 am
    Jul 16, 2012 at 9:32 am
  • Hi all, I'd like to know if I can get the list of indexed terms in a document from its document ID in constant time (say, in a time independent of the size of the index). The reason why I ask might ...
    Giovanni GherdovichGiovanni Gherdovich
    Jul 15, 2012 at 3:57 pm
    Jul 15, 2012 at 4:08 pm
  • Hello, I have a search project which uses the Lucene PatternAnalyzer for its text/query analysis. At the moment it's configured like so: analyzer = new PatternAnalyzer(Version.LUCENE_35, ...
    Dave SeltzerDave Seltzer
    Jul 12, 2012 at 6:21 pm
    Jul 13, 2012 at 1:56 pm
  • Hi all, I create a method above que generate my boolean query based in many parameters. The query's on not analyzed fields works perfect in debug. When start a search using any analyzed field with ...
    Marcelo NevesMarcelo Neves
    Jul 11, 2012 at 3:33 pm
    Jul 12, 2012 at 6:39 pm
  • Hi Everyone I am busying attempting to integrate Lucene 4.0 Alpha into my code base. I have a custom QueryParser that extends QueryParser and overrides newRangeQuery and newTermQuery to support typed ...
    JamieJamie
    Jul 11, 2012 at 1:32 pm
    Jul 11, 2012 at 1:53 pm
  • I'm running 8 index searchers java processes on a 8-core node. They all read from the same lucene index on local hard drive. the index contains about 20million docs, each doc is a small record with ...
    YangYang
    Jul 11, 2012 at 3:04 am
    Jul 11, 2012 at 1:25 pm
  • I have a question about the API for storing and indexing lucene documents (in 3.x). If I want to index a document by providing a TokenStream, I can do that by calling document.add (field) where field ...
    Michael SokolovMichael Sokolov
    Jul 11, 2012 at 12:54 am
    Jul 11, 2012 at 10:38 am
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94 users for July 2012

Ian Lea: 23 posts Simon Willnauer: 18 posts Uwe Schindler: 12 posts Simon McDuff: 9 posts Vitaly Funstein: 9 posts Doron Yaacoby: 8 posts Erick Erickson: 8 posts Jack Krupansky: 8 posts Michael McCandless: 8 posts Robert Muir: 8 posts Sam: 8 posts Jochen Hebbrecht: 7 posts 齐保元: 7 posts Sean Bridges: 6 posts Mike O'Leary: 5 posts Neerajshah84: 5 posts Phanindra R: 5 posts Andrzej Bialecki: 4 posts Dave Seltzer: 4 posts Deepak Shakya: 4 posts
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