Search Discussions

68 discussions - 320 posts

  • We have very large indexes, almost a terabyte for a single index, and normally it takes overnight to run a checkindex. I started a CheckIndex on Friday and today (Monday) it seems to be stuck testing ...
    Tom Burton-WestTom Burton-West
    Jul 29, 2013 at 8:31 pm
    Aug 9, 2013 at 3:30 pm
  • I did some performance tests on a real index using a query having the following pattern: termA AND (termB1 OR termB2 OR ... OR termBn) The results were not good and I was wondering if I may be doing ...
    Sriram SankarSriram Sankar
    Jul 24, 2013 at 4:11 pm
    Aug 21, 2013 at 12:24 am
  • Hi, I need to do highlight the first sentence which matches the search keyword in a document using PostingsHighlighter. How can i do this Any Help or suggestions welcome -- Thanks and Regards Vignesh ...
    Jul 17, 2013 at 10:19 am
    Jul 22, 2013 at 6:41 pm
  • I am learning about Apache Lucene from Manning book: Lucene in Action. However examples from book is for Lucene v3.0.3 and today Lucene is in version 4.3.1. I can't find any good newer Lucene ...
    Šimun ŠunjićŠimun Šunjić
    Jul 9, 2013 at 2:44 pm
    Jul 15, 2013 at 10:24 am
  • Hi, I am Trying to migrate to Lucene 4.3.1 I just want to do basic indexing.I added the Lucene Core Jar and iam getting Getting Exception 07-01 15:11:13.763: E/AndroidRuntime(17123): Caused by ...
    Jul 13, 2013 at 7:09 am
    Jul 14, 2013 at 1:28 am
  • One of our main use-cases for search is to find objects based on partial name matches. I've implemented this using n-grams and it works pretty well. However we're currently using trigrams and that ...
    Becker, ThomasBecker, Thomas
    Jul 18, 2013 at 7:55 pm
    Jul 30, 2013 at 2:01 pm
  • Dear All, Say suppose I have 3 documents. The sample text is /*File 1 : */ Mr X David is a manager of the company. He is the senior most manager. I also want to become manager of the company. /*File ...
    Ankit MurarkaAnkit Murarka
    Jul 24, 2013 at 8:33 am
    Jul 29, 2013 at 5:55 am
  • How do I accumulate counts over a MultiReader (2 IndexReader)? The following code causes an IOException: ArrayList<FacetRequest facetRequests = new ArrayList<FacetRequest (); for (String ...
    Peng GaoPeng Gao
    Jul 2, 2013 at 12:32 am
    Jul 5, 2013 at 4:03 pm
  • Since I am new to this, I can't stop exploring it and trying to use different features. I am now trying to implement "Did you Mean " search using SpellChecker jar and Lucene jar. The problem I faced ...
    Ankit MurarkaAnkit Murarka
    Jul 29, 2013 at 11:07 am
    Aug 2, 2013 at 5:41 am
  • Greetings, I am looking a way to tokenize the String based on Logical operators Below String needs to be tokenized as *arg1:aaa,bbb AND arg2:ccc OR arg3:ddd,eee,fff* Token 1: arg1:aaa,bbb Token 2 ...
    Jul 23, 2013 at 1:30 pm
    Jul 25, 2013 at 4:02 am
  • Hi, I am creating index like this in\\using Lucene 4.3.1 I am using 3 fields like FieldType offsetsType = new FieldType(TextField.TYPE_STORED); offsetsType.setIndexed(true) ...
    Jul 16, 2013 at 7:07 am
    Jul 17, 2013 at 1:10 pm
  • Hi, Today we'd the SAN outage and it looks the lucene index directory got corrupted. We tried to fix it by using CheckIndex and below is the exception trace. Do we've any other possible ways to ...
    Prakash ChinnakannanPrakash Chinnakannan
    Jul 26, 2013 at 3:00 pm
    Jul 29, 2013 at 2:06 pm
  • It looks like Lucene stores the string names of the posting lists in the index. How compact is this storage (when there may be a very large number of posting lists, and the string lengths may be ...
    Sriram SankarSriram Sankar
    Jul 5, 2013 at 8:17 pm
    Sep 19, 2013 at 12:11 pm
  • Hi everyone, I am new to this forum, I have made some research for my question but I can't seem to find an answer for it. I am using Lucene for a project and I know for sure that in my lucene index I ...
    Jul 19, 2013 at 1:52 am
    Jul 19, 2013 at 5:00 pm
  • I am updating one project from lucene 3.x to lucene 4.x I found getLocale of SortField is moved. How can I fix it?
    Yonghui ZhaoYonghui Zhao
    Jul 9, 2013 at 11:45 am
    Jul 10, 2013 at 11:10 pm
  • hi , Sorry to interrupt you, but I am really confused by the bad performance of lucene 4.2.1. Recently I migrated project from lucene 3.0 to 4.2.1 . After simply tests I found that both indexing and ...
    Chris ZhangChris Zhang
    Jul 7, 2013 at 11:54 am
    Jul 8, 2013 at 7:49 am
  • I'm looking for a tool to serialize and deserialize Lucene queries. We have tried using Query.toString(), but some queries return string that couldn't be parsed by a QueryParser afterwards. The ...
    Denis BazhenovDenis Bazhenov
    Jul 28, 2013 at 6:00 am
    Aug 4, 2013 at 9:08 pm
  • Hi, I did some basic performance testing, just use random number to generate text for indexing, below I attached source java code. The command I used are: java TestReal43 index -docCount 500 -start 1 ...
    Zhang, LishengZhang, Lisheng
    Jul 26, 2013 at 6:55 pm
    Jul 30, 2013 at 10:14 pm
  • Hello i am trying to build the example but TermFreqPayload and TermFreqPayloadArrayIterator are missing from suggest package also how to pass to suggester.build method real index instead of mock ...
    vonPuh fonPuhendorfvonPuh fonPuhendorf
    Jul 26, 2013 at 7:48 pm
    Jul 28, 2013 at 8:45 pm
  • I'm trying to get Lucene's hot backup functionality to work. I posted the question in detail over at StackOverflow, but it seems there's very little Lucene knowledge over there. Basically, I think I ...
    Marcos Juarez LopezMarcos Juarez Lopez
    Jul 24, 2013 at 4:35 am
    Jul 25, 2013 at 7:47 pm
  • Hello. I am trying to search java.lang.NullPointerException in a log file. The log file is huge. However I am unable to search it. This is because the StandardAnalyzer must be splitting the words on ...
    Ankit MurarkaAnkit Murarka
    Jul 22, 2013 at 10:25 am
    Jul 22, 2013 at 2:43 pm
  • Hi, I was looking to change the order of the facet results; in this case I would like to order by the facet label instead of the facet value (count). An example is a facet on dates; suppose the facet ...
    Nicola BusoNicola Buso
    Jul 2, 2013 at 3:36 pm
    Jul 4, 2013 at 12:05 pm
  • Hi, I've been trying to figure out how to use ngrams in Lucene 4.3.0 I found some examples for earlier version but I'm still confused. How I understand it, I should: 1. create a new analyzer which ...
    Malgorzata UrbanskaMalgorzata Urbanska
    Jul 15, 2013 at 5:51 pm
    Jul 16, 2013 at 9:01 pm
  • Hi everyone! I have two questions: 1. What are the cases where Lucene's default tf-idf overperforms BM25? What are the best use cases where I should use tf-idf or BM25? 2. Are there any user-friendly ...
    Jul 11, 2013 at 1:57 pm
    Jul 12, 2013 at 7:57 pm
  • Hi, What's proper replacement of "TermDocs termDocs = reader.termDocs(null);“ in lucene 4.x It seems reader.termDocsEnum(term) can't take null as a input parameter.
    Yonghui ZhaoYonghui Zhao
    Jul 8, 2013 at 11:33 am
    Jul 9, 2013 at 7:17 am
  • Hi everyone, I am very new in Lucene, so please forgive me if my question is quite stupid. I spent a whole day to google how to start with Lucene 4.6.1, but failed. I found some clear tutorials, but ...
    Vinh DangVinh Dang
    Jul 8, 2013 at 2:47 pm
    Jul 9, 2013 at 6:58 am
  • Hi all, I am using Lucene.Net 3.0.3 and need to search in a specific field (ignoring any fields specified in the query). I am given a parsed Lucene Query so I am unable to generate a parsed query ...
    Puneet PawaiaPuneet Pawaia
    Jul 6, 2013 at 12:12 pm
    Jul 6, 2013 at 5:19 pm
  • Hi all, I'm migrating from Lucene 3.6.1 to 4.3.1 and there seems to be a major change in how analyzers work.... Given the code example below (which is almost copied from ...
    Jul 11, 2013 at 7:32 am
    Jul 10, 2014 at 4:02 pm
  • Recently I find my unit test will failed sometimes but no always. I use Lucene 4.3.0 After inverstigation, I found when I try to open a IndexWriter for a disk directory. Some time it will throw this ...
    Yonghui ZhaoYonghui Zhao
    Jul 25, 2013 at 4:27 am
    Jul 25, 2013 at 5:29 pm
  • Hi, I am using lucene 4 to index very big data. The indexer crashed after three days (147Gig of current index size). I find the stack trash weird. Any ideas on this will be helpful. Exception in ...
    Ash nixAsh nix
    Jul 25, 2013 at 12:54 am
    Jul 25, 2013 at 2:48 pm
  • Hi all, I am trying to apply Lucene for a specific domain, so I need to customize the text searching / text comparing algorithm of Lucene. Is there any guideline / tutorial or article which explains ...
    Vinh ĐặngVinh Đặng
    Jul 17, 2013 at 2:55 am
    Jul 17, 2013 at 1:09 pm
  • Hi Mike, I've finally got something running and will send you some performance numbers as promised shortly. In the meanwhile, I've a question regarding the use of real time indexing along with ...
    Sriram SankarSriram Sankar
    Jul 9, 2013 at 3:07 am
    Jul 15, 2013 at 11:45 am
  • My usecase to explore Apace Lucene is as follows: Need input whether the same can be served by Lucene or not. a. I have a string of 190 characters. b. I need to store this string or the content of ...
    Ankit MurarkaAnkit Murarka
    Jul 11, 2013 at 6:05 am
    Jul 11, 2013 at 8:55 am
  • Hi, Is it mandatory to use "Store.YES" when using Highlighting Feature. is it Possible to use Highlighting Feature without using "Store.Yes" while indexing because it almost doubles index size ...
    Jul 4, 2013 at 1:09 pm
    Jul 10, 2013 at 11:30 am
  • Hello, I am looking for a way to search for a token appearing after another and retrieve tehir positions. ex: T1 (...)* T2 I know the SpanTermQuery is doing similar when using the slop parameter, but ...
    Sébastien DruonSébastien Druon
    Jul 9, 2013 at 6:55 am
    Jul 9, 2013 at 9:20 am
  • Dear Team, I have a potential usecase. I have large number of log files which are archived in a particular directory. Now the administrator would like to view certain information which might/might ...
    Ankit MurarkaAnkit Murarka
    Jul 4, 2013 at 7:10 am
    Jul 4, 2013 at 10:34 am
  • Hi, I have a stored and tokenized field, and I want to cache all the field values. I have one document in the index, with the "field.value" = "hello world" and with tokens = "hello", "world". I try ...
    Andi rexhaAndi rexha
    Jul 30, 2013 at 2:09 pm
    Jul 30, 2013 at 2:20 pm
  • In luncene 4.3 AtomicReader has this interface public abstract NumericDocValues getNumericDocValues(String field) throwsIOException If I get a NumericDocValues of one field from a reader ...
    Yonghui ZhaoYonghui Zhao
    Jul 29, 2013 at 2:56 pm
    Jul 29, 2013 at 8:19 pm
  • Hi everyone ! So I am working on a Lucene index that will run on a server and since this server might crash/be killed at any time, even during the creation of an index, I would like to be able to ...
    Jul 27, 2013 at 2:33 am
    Jul 29, 2013 at 5:44 pm
  • Hi, all I'm stuck in one simple question, as title says, I think it should have a simple solution. Say I use StandardAnalyzer and have two fields in all documents, StringField("date"...) is not ...
    Wenbo ZhaoWenbo Zhao
    Jul 28, 2013 at 2:36 pm
    Jul 28, 2013 at 3:03 pm
  • Hi, I would like to use Lucene's inverted index directly as building block for experimental purpose. 1. How can I customize the inverted list for different format? Is there any example? 2. Is there ...
    Airway WongAirway Wong
    Jul 27, 2013 at 9:56 am
    Jul 27, 2013 at 10:54 am
  • Hello, For some time I have been trying to apply ShingleFilter. I have a string: "The users get program in the User RPC API in Apache Rave" and I would like to get: [the users get] [users get ...
    Malgorzata UrbanskaMalgorzata Urbanska
    Jul 18, 2013 at 10:03 pm
    Jul 19, 2013 at 12:12 am
  • I use Lucene/MemoryIndex for a large number of queries against data in a streaming system. I'm looking to upgrade from v3.5 to 4.x, but it seems that using MemoryIndex is roughly 25% slower based on ...
    Jul 14, 2013 at 5:57 pm
    Jul 18, 2013 at 4:20 am
  • I have a bunch of Lucene indices lying around, and I want to start adding a new field to documents in new indices that I'm generating. So, for a given index, either every document in the index will ...
    David CarltonDavid Carlton
    Jul 3, 2013 at 8:28 pm
    Jul 3, 2013 at 9:25 pm
  • Hello, I'm a novice Lucene user and just started using it to do some prototyping for my project. I noticed SortedSetDocValues was introduced in 4.3.0 that allows faceted search without a dedicated ...
    Jul 3, 2013 at 7:44 pm
    Jul 3, 2013 at 8:49 pm
  • Hi, I would like to know if it is possible to calculate the relevance ranks of documents based on filtered document count? The current filter implementations as far as I know, seems to be applied ...
    Nigel V ThomasNigel V Thomas
    Jul 1, 2013 at 11:39 am
    Jul 1, 2013 at 1:31 pm
  • Hi, we are using some of the latest features of lucene for sorting which are very cool but we are facing some issues with the numerical sort: We need two kinds of sort: numerical and lexical. For the ...
    Nicolas GuyotNicolas Guyot
    Jul 30, 2013 at 6:20 pm
    Jul 30, 2013 at 10:14 pm
  • http://do-the-dirty-dishes.com/luewoxn/wkrgjbsfrseimf vieri.emiliani 7/21/2013 2:16:36 PM --------------------------------------------------------------------- To unsubscribe, e-mail: <span ...
    Jul 21, 2013 at 1:17 pm
    Jul 28, 2013 at 8:13 am
  • Hi, I just did the setup for solr in Tomcat, set the schema pointing to a big database, create 50 cores (one for each US state), the indexes are generated. Where can I find an example servlet and a ...
    Jul 25, 2013 at 6:02 pm
    Jul 27, 2013 at 2:39 pm
  • Hi, I would like to calculate raw cosine similarity between query and document. I read documentation about lucene scoring but I'm still confused. Does exist any implementation in Luscen 4.3.0 to do ...
    Malgorzata UrbanskaMalgorzata Urbanska
    Jul 21, 2013 at 7:15 am
    Jul 21, 2013 at 7:30 am
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85 users for July 2013

Michael McCandless: 31 posts Jack Krupansky: 23 posts VIGNESH S: 20 posts Ankit Murarka: 16 posts Shai Erera: 16 posts Uwe Schindler: 13 posts Adrien Grand: 11 posts Sriram Sankar: 11 posts Erick Erickson: 9 posts Vinh Đặng: 8 posts Yonghui Zhao: 8 posts Malgorzata Urbanska: 7 posts Becker, Thomas: 6 posts ABlaise: 5 posts Ian Lea: 5 posts Peng Gao: 5 posts Prakash Chinnakannan: 5 posts Zhang, Lisheng: 5 posts Allison, Timothy B.: 4 posts Beale, Jim (US-KOP): 4 posts
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