Hi
I am currently storing indexed field and stored field in separate database. In
stored field database, Document Id, Type and Json string of metadata will be
stored. Basically i am using it as key-value pair database. For every document
to be indexed, we have three different metadata structure
easily convert back
to object.
Regards
Ganesh
On 20-02-2018 08:34, Kumar, Santosh wrote:
Hi,
I have a requirement to store a Java object with multiple fields into the
Lucene index. Basically, at the application startup I run a select query on
entities ( there are 5 of them as of now and may in
Ganesh
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the index. Every minute the IndexReader will be reopened.
public TopDocs searchAfter(ScoreDoc after, Query query, int numHits)
throws IOException
Please let me know how to handle this.
Regards
Ganesh
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resolve this issue.
Regards
Ganesh
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How Solr handles this scenario... Is it reopening reader after every
delete OR it maintains the list of delete documents in cache?
Regards
Ganesh
On 7/11/2014 4:00 AM, Tri Cao wrote:
You need to reopen your searcher after deleting. From Java doc for
SearcherManager:
In addition you should
Hi Smitha,
You need to have your own custom analyzer which breaks the word by - or
_. Use the same analyzer for indexing and searching.
Regards
Aditya
www.findbestopensource.com
On 7/4/2014 11:41 AM, Smitha Kuldeep (smtt) wrote:
Hello team,
We are using lucen-core-2.9.1.jar for indexing and
type. This is working fine for most of the customers
and till now i didn't faced any issue.
While creating SortField, do i need to pass Default Int parser? I guess,
currently it is using encoded int parser.
Regards
Ganesh
From: Uwe Schindler
To: java-user@lucene.apache.org; &#
really an INT?) ID: 256566961
org.apache.lucene.search.ParallelMultiSearcher$ExecutionHelper.next(ParallelMultiSearcher.java:225)
org.apache.lucene.search.ParallelMultiSearcher.search(ParallelMultiSearcher.java:127)
org.apache.lucene.search.Searcher.search(Searcher.java:49)
Regards
Ganesh
Any thoughts on this?
Regards
Ganesh
- Original Message -
From: "Ganesh"
To:
Sent: Tuesday, July 17, 2012 4:23 PM
Subject: [Bulk] Multiple sort field
Hello all,
I have more than one record having same time stamp. When i sort by date time in
decending order, the set
again sort on docid in reverse order.
record_4 201207170102
record_3 201207170102
record_2 201207170101
record_1 201207170101
Is it good to use multiple sort fields? Using sort on docid will consume any
memory? Is there any other way out to acheive this.
Regards
Ganesh
Thanks for the reply. Any idea how much time it would take to go for 4.0 stable
release? I want to go for v4.0 but i have to use only the stable version.
Regards
Ganesh
- Original Message -
From: "Shai Erera"
To:
Sent: Tuesday, July 10, 2012 10:50 AM
Subject: Re: Upgr
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
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For additional
another system.
When i started my application in another system, I could see my search database
whiped out. Only write lock remains. The behaviour is unpredictable.
I am not using SnapshotDeletionPolicy. Is that any other way to acheive this
using SAN replicator?
Regards
Ganesh
It is fixed now. I need to enable
qp.setAutoGeneratePhraseQueries(true);
Regards
Ganesh
- Original Message -
From: "Ganesh"
To:
Sent: Friday, March 02, 2012 10:46 AM
Subject: Re: QueryParser strange behavior
Hello Damerian,
Please let me know, How you fixed the pro
her of the token matches, it returns the results.
Regards
Ganesh
- Original Message -
From: "Damerian"
To:
Sent: Thursday, March 01, 2012 7:57 PM
Subject: Re: QueryParser strange behavior
> Στις 1/3/2012 3:08 μμ, ο/η Ian Lea έγραψε:
>> Not a clue. I suggest you po
Thanks Li Li.
Please share your experience in 64 bit. How big your indexes are?
Regards
Ganesh
- Original Message -
From: "Li Li"
To:
Sent: Thursday, March 01, 2012 3:03 PM
Subject: Re: Lucene performance in 64 Bit
>I think many users of lucene use large memory
Thanks. I use this field for Rangequery and sort. I think it is best to use Int
to gain some heap.
Regards
Ganesh
- Original Message -
From: "Uwe Schindler"
To:
Sent: Tuesday, February 28, 2012 5:08 PM
Subject: [Bulk] RE: RE: Date time as String or Numeric field
> Hi,
I tried NumericField with Integer value and Long value. There is no difference
in space and heap utilization. Will it be? Are both are same?
Regards
Ganesh
- Original Message -
From: "Uwe Schindler"
To:
Sent: Tuesday, February 28, 2012 3:52 PM
Subject: [Bulk] RE: Date time
Hello all,
I was using DateTime as String and now i am using NumericField. Using
NumericField takes more heap and storage space then the earlier String version.
Is it good to move to NumericField or stick with String. I am using this field
for search and sort.
Regards
Ganesh
index.
Regards
Ganesh
- Original Message -
From: "Ian Lea"
To:
Sent: Thursday, February 23, 2012 3:40 PM
Subject: Re: Multiple index vs Single Index
Millions of docs in a single index is definitely OK. If it was my
system I'd willingly trade slightly slower indexing for
. I thought to break in to
multiple small index with same schema. Now optimization is discourged and the
name has been changed to forceMerge to discourge its use.
I just want to confirm, Is Single Index would be good for millions of records?
Regards
Ganesh
37 Feb 22 19:52 _203_1.del
332 Feb 22 20:42 _a3_k.del
487 Feb 22 20:42 _ig_j.del
511 Feb 22 20:42 _rc_j.del
Regards
Ganesh
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For additional commands, e
, or document
indexed after certain date.
Regards
Ganesh
- Original Message -
From: "Ilya Zavorin"
To:
Sent: Wednesday, February 22, 2012 2:39 AM
Subject: [Bulk] can I make incremental index/search more efficient?
>I have a fairly straightforward task: I have a co
q.tis
_4xq.tvd
_4xq.tvf
_4xq.tvx
_4xq_6.del
_5o4.cfs
_5wh.cfs
_5wi.cfs
_5wj.cfs
_5wk.cfs
segments.gen
segments_3d8
Regards
Ganesh
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documents
I need to do this. When the application starts, I have my writer and reader
ready. I have a thread which crawls the filesytem and adds it to index and
another one performs search. Is this intentional?
Regards
Ganesh
--
tter in optimized indexes. What about 3.5.0?
Regards
Ganesh
- Original Message -
From: "Ian Lea"
To:
Sent: Wednesday, February 01, 2012 3:07 PM
Subject: Re: upgrading from 3.0.3 to 3.5.0
> I am upgrading from 3.0.3 to 3.5.0.
>
> 1) NumberTools is deprecated. I am con
ent search performance has improved over time, and the default
TieredMergePolicy now targets segments with deletions."
This means usage of this method is not justified any more. I am doing
optimization once per day. Is that not required now.
I am also in the way to upgrade from 3.0.3 to 3.5. Any other API changes we
need to care about? I use ParallelMultiSearcher.
Regards
Ganesh
- Original Message -
From: "Uwe Schindler"
To:
Sent: Friday, January 20, 2012 5:18 AM
Subject: [Bulk] RE: any tips for upgrading Lu
Count me in for Bangalore.
This mail thread indicates, 3 from Bangalore and 1 from Mumbai. If we get more
people then we could do some meetup.
Regards
Ganesh
- Original Message -
From:
To:
Sent: Tuesday, December 13, 2011 4:23 PM
Subject: Re: Lucene bangalore chapter
Do we have a
less number of concurrent users going to search at a
time.
Regards
Ganesh
- Original Message -
From: "Ganesh"
To: ;
Sent: Tuesday, June 14, 2011 3:28 PM
Subject: Re: Index size and performance degradation
Is it a bad idea to keep multiple shards in a single system?
Rega
Is it a bad idea to keep multiple shards in a single system?
Regards
Ganesh
- Original Message -
From: "Toke Eskildsen"
To:
Sent: Tuesday, June 14, 2011 12:58 PM
Subject: Re: Index size and performance degradation
> On Sun, 2011-06-12 at 10:10 +0200, Itamar Syn-Hershko
Ganesh
- Original Message -
From: "Shai Erera"
To:
Sent: Sunday, June 12, 2011 9:13 AM
Subject: Re: Index size and performance degradation
>I agree w/ Erick, there is no cutoff point (index size for that matter)
> above which you start sharding.
>
> What
in GB's. Small addition or
deletion to the file will not cause more IO as it has to skip those bytes and
write it at the end of file.
Regards
Ganesh
- Original Message -
From: "Burton-West, Tom"
To:
Sent: Tuesday, May 10, 2011 9:46 PM
Subject: RE: Sharding Techni
?
2. Is your index optimized?
I have a doubt, If we keep the indexes size to 30 GB then each file size (fdt,
fdx etc) would in GB's. Small addition or deletion to the file will not cause
more IO as it has to skip those bytes and write it at the end of file.
Regards
Ganesh
- Ori
There is no ParallelMultiSearcher.close() in 2.9.1 and its been added in 3.0.
Thanks for pointing out. I am not aware of.
Regards
Ganesh
- Original Message -
From: "Uwe Schindler"
To:
Sent: Thursday, March 17, 2011 11:27 PM
Subject: [Bulk] RE: ParallelMultisearcher
&
shing frequently.
Regards
Ganesh
- Original Message -
From: "Devon H. O'Dell"
To:
Sent: Thursday, March 17, 2011 10:35 PM
Subject: Re: ParallelMultisearcher
> 2011/3/17 Ganesh :
>> Is this bug https://issues.apache.org/jira/browse/LUCENE-2249 got fixed in
>
Is this bug https://issues.apache.org/jira/browse/LUCENE-2249 got fixed in
3.0.3?
Regards
Ganesh
- Original Message -
From: "Ganesh"
To:
Sent: Thursday, March 17, 2011 7:03 PM
Subject: Re: ParallelMultisearcher
I tested the same with Lucene 2.9.1 and found very less th
I tested the same with Lucene 2.9.1 and found very less thread count but with
3.0.2 it is very high. Do i need to revert back to Lucene 2.9.1.
Regards
Ganesh
- Original Message -
From: "Ganesh"
To:
Sent: Thursday, March 17, 2011 5:17 PM
Subject: ParallelMultisearcher
Regards
Ganesh
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Any suggestions. We are planning to move towords cloud and its become a
mandatory requirement to have backup or replication of search db.
Regards
Ganesh
- Original Message -
From: "Ganesh"
To:
Sent: Tuesday, March 01, 2011 12:06 PM
Subject: Backup or replication option w
Hello all,
Could any one guide me how to backup or do replication with Lucene.
Regards
Ganesh
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-
To
)
/Articles/aaa (10)
Regards
Ganesh
- Original Message -
From: "Chris Hostetter"
To: "Lucene Users"
Sent: Thursday, February 24, 2011 7:29 AM
Subject: [Bulk] Re: Facet search
>
> : This is another indicator that we should re
US(50) /Articles/xyz (25)
/Articles/aaa (10)
Regards
Ganesh
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Exactly. QueryParser is splitting it in to two words.
>>Just build the query directly.
TermQuery or PhraseQuery?
Regards
Ganesh
- Original Message -
From: "Ian Lea"
To:
Sent: Friday, February 18, 2011 4:34 PM
Subject: Re: Keyword Analyzer
Presumably because wi
world");
My question is why i need to give the text within codes (basically as a
phrase). While indexing i have not given and it is indexing as single term and
while searching also it should consider the complete text as single term.
Regards
Ganesh
Send free SMS to your Friends on Mobile
about the old users, their data will be still added to the
server1. How to address this issue. Is rebuilding the index the only way.
Could any one share their experience, How they solved scale out problems?
Regards
Ganesh
- Original Message -
From: "Anshum"
To:
Se
.
Regards
Ganesh
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Thanks. I going to try in 64 bit. I will post some update in a day or two.
Do I need to compile the Lucene and analyzer code in 64 bit JVM?
Do I need to use MMAPDirectory in 64 bit?
Any other tips targeting 64 bit?
Regards
Ganesh
- Original Message -
From: "Danil ŢORIN"
Hello Simon,
I don't hesitate to move to 64 bit. I require a suggestion whether to move to
64 bit (Scale up) or scale out with multiple system. I have started
investigating 64 bit, i want to know about its performance and if anyone in
this group has already tried using it.
Regards
G
I have done some benchmarking and based on that my estimate of RAM requirement
would be 3 - 4 GB. My question is to go for 64 bit or scale out with 3 systems?
Regards
Ganesh
- Original Message -
From: "Toke Eskildsen"
To:
Sent: Thursday, December 16, 2010 4:20 PM
Subje
Ganesh
- Original Message -
From: "Toke Eskildsen"
To:
Sent: Wednesday, December 15, 2010 4:36 PM
Subject: [Bulk] Re: Scale up design
> On Wed, 2010-12-15 at 09:42 +0100, Ganesh wrote:
>> What is the advantage of going for 64 Bit.
>
> Larger maximum
more ideas. We need to design whether to scale out or
scale up.
Regards
Ganesh
- Original Message -
From: "Erick Erickson"
To:
Sent: Monday, December 13, 2010 7:00 PM
Subject: Re: Scale up design
Here's a great intro to the garbage collectio
Have you tried using Lucene in 64 Bit with more than 8 GB RAM.
Regards
Ganesh
- Original Message -
From: "Pradeep Singh"
To:
Sent: Monday, December 13, 2010 12:16 PM
Subject: Re: Scale up design
> 8GB is used on laptops. For servers you need more.
>
> On Sun, De
their thoughts on this.
Regards
Ganesh
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For
Thanks for the link. I downloaded the tool and pdftotext extracts correctly. I
also dropped a mail to the tika user group. It is a regression in latest
release https://issues.apache.org/jira/browse/TIKA-548. Hopefully coming
release will have a fix.
Regards
Ganesh
- Original Message
I first extract the contents from documents using tika and latter index it with
Lucene. The problem is the extracted text from PDF using tika has no
whitespaces.
Regards
Ganesh
- Original Message -
From: "McGibbney, Lewis John"
To:
Sent: Friday, December 03, 2010 4:40
The main problem is i am not getting whitespace and newline char. This is
happening only for PDF documents.
Sample outoput: Someofthedifferencesare but it should be Some of the
differences are
Regards
Ganesh
- Original Message -
From: "Alexander Aristov"
To:
Sent: Friday
. Could any one in this group could help me? I am using tika
directly to extract the contents, which later gets indexed.
Regards
Ganesh
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I am using ParallelMultiSearcher and querying more than 50 shards. I get wrong
results for query A NOT B. I am getting correct results if i query A -B.
I am also getting correct results for wildcard and fuzzy.
What is the solution? I need to use IndexSearcher with MultiReader?
Regards
Ganesh
Thanks for the input.
My results are sorted by date and i am not much bothered about score. Will i
still be in trouble?
Regards
Ganesh
- Original Message -
From: "Robert Muir"
To:
Sent: Thursday, November 25, 2010 1:45 PM
Subject: Re: best practice: 1.4 billions document
now i didn't faced any issue. I
used Lucene 2.9 and recently upgraded to 3.0.2.
Do i need to switch to MultiReader?
Regards
Ganesh
- Original Message -
From: "Luca Rondanini"
To:
Sent: Monday, November 22, 2010 11:29 PM
Subject: Re: best practice: 1.4 billions docu
I am using Lucene 2.9.1 and there was no exception in the past.
Regards
Ganesh
- Original Message -
From: "Michael McCandless"
To:
Sent: Wednesday, August 11, 2010 3:28 PM
Subject: Re: read past EOF
It looks like it may be this issue:
https://issues.apache.org/j
(DirectoryReader.java:69)
org.apache.lucene.index.IndexReader.open(IndexReader.java:476)
org.apache.lucene.index.IndexReader.open(IndexReader.java:403)
Regards
Ganesh
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Hello all,
What is the road map of next major release? Few days back, many have posted
their expectation / ideas for the next release. What is the plan and what all
the things we could expect from the next release
Regards
Ganesh
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Replication support as like in Solr.
Regards
Ganesh
- Original Message -
From: "Grant Ingersoll"
To:
Sent: Wednesday, February 24, 2010 7:12 PM
Subject: If you could have one feature in Lucene...
> Wha
the sort. This will
certanily reduce the memory consumption. We cannot create one index for each
table, which will be difficult to maintain.
Regards
Ganesh
- Original Message -
From: "Grant Ingersoll"
To:
Sent: Wednesday, February 24, 2010 7:12 PM
Subject: If you could h
nodes, then i may need to sort / combine the results.
Any thoughts on scaling / clustering? Whether i need to use Hadoop / Carrot
etc...
Regards
Ganesh
Send instant messages to your online friends http://in.messenger.yahoo.com
Yes. I am using the objects across threads. Thanks for pointing out.
But still i didn't see much increase in performance by reusing documents and
field objects.
Regards
Ganesh
- Original Message -
From: "Uwe Schindler"
To:
Sent: Tuesday, February 02, 2010 2:02 PM
Sub
this approach.
Documents cannot be re-used in v3.0?
Regards
Ganesh
- Original Message -
From: "Uwe Schindler"
To:
Sent: Tuesday, February 02, 2010 1:41 PM
Subject: [Bulk] RE: Exception while adding document in 3.0
> They can.
>
> -
> Uwe Schindler
> H.-H
)
org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:2472)
org.apache.lucene.index.IndexWriter.addDocument(IndexWriter.java:2446)
Regards
Ganesh
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Any reply to this thread?
- Original Message -
From: "Ganesh"
To:
Sent: Thursday, January 28, 2010 2:35 PM
Subject: Roadmap for next release
Hello all,
Please provide me the information related to road map for the next release.
This information will be really helpful t
consumption by caching / offload it to disk
2. If all records are not part of sorting, Is there any way to create the
custom field cache array based on some filter criteria.
Regards
Ganesh
Send instant messages to your online friends http://in.messenger.yahoo.com
Thanks Otis. The download link sent via email has file called cemail. There is
no extn. I tried with html,pdf but it is not opening properly.
Regards
Ganesh
- Original Message -
From: "Otis Gospodnetic"
To:
Sent: Wednesday, January 20, 2010 11:54 AM
Subject: Re: Lucene as
ehave with millions of
records but i guess their sorting memory consumption would be less.
It would be great, If Lucene has the ability to do backups / replication. I
don't know how to modify/use the solr script.
Regards
Ganesh
- Original Message -
From: "Otis Gospodneti
Hello all,
I am indexing millions of documents. The app is single threaded. I need to
create Document and Fields objects repeatedly. I have a thought to create it
once and reuse by setting the field values to null.
Is this advisable, Will it give any performance improvement?
Regards
Ganesh
merging. Assign docid by sorting the
selected field. This way we could achieve the sorting by zero RAM utilization.
Mostly the sorted field is fixed for all application. Just some interest to
know these things
Regards
Ganesh
- Original Message -
From: "Toke Eskildsen"
T
Thanks Toke. I worried to use long[] inverted = new long[reader.maxDoc]; as
the memory consumption will be high for millions of document.
Any idea of building external sort cache?
Regards
Ganesh
- Original Message -
From: "Toke Eskildsen"
To:
Sent: Thursday, December
external sorting?
Is there any way to index the records in sorted order. Sort and Merge the
records at indexing time and pull the records sorted by doc id?
Any other ideas I need to do sort with less memory. Performance is not the
concern.
Regards
Ganesh
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How about KeywordAnalyzer? It will treat C++ and C# as single term.
Regards
Ganesh
- Original Message -
From: "Chris Lu"
To:
Sent: Saturday, December 12, 2009 5:27 AM
Subject: Re: Lucene Analyzer that can handle C++ vs C#
> What we did in DBSight is to provide a res
externally with 2.9.1 ?
If we reopen the DB multiple times whether these objects will be accumulated /
All readers are referenced to single cache?
Regards
Ganesh
- Original Message -
From: "Toke Eskildsen"
To:
Sent: Thursday, December 10, 2009 5:16 AM
Subject: RE: h
then perform warming
using TermQuery. I feel there should be some difference when opening with
different value. But it didn't. I will try to perform the same using profiler.
Regards
Ganesh
- Original Message -
From: "Michael McCandless"
To:
Sent: Sunday, December 0
mes memory. There is no
deletions, no norms and i am not doing sorting
Regards
Ganesh
- Original Message -
From: "Michael McCandless"
To:
Sent: Friday, December 04, 2009 7:01 PM
Subject: Re: IndexDivisor
I'm confused -- what are these attachments? Output from a memor
close all the searcher and reader.
There is no deletions, no norms and i am not doing sorting.
Regards
Ganesh
- Original Message -
From: "Michael McCandless"
To:
Sent: Thursday, December 03, 2009 9:35 PM
Subject: Re: IndexDivisor
Can you run w/ a memory profiler? I d
I am doing GC before calculating the memory. Even i set my indexdivisor to
1 but there seems to be no change.
Below are my stats
IndexDivisor Memory
-1 7 MB
1 486 MB
100 180 MB
1000 176 MB.
1176MB
Regards
Ganesh
- Original Message -
From
Thanks mike.
I am opening the reader and warming it up and then calculating the memory
consumed.
long usedMemory = runtime.totalMemory() - runtime.freeMemory();
Regards
Ganesh
- Original Message -
From: "Michael McCandless"
To:
Sent: Thursday, December 03, 2009 6:22 PM
S
emory will be allocated / increased.
Regards
Ganesh
- Original Message -
From: "Michael McCandless"
To:
Sent: Thursday, December 03, 2009 4:47 PM
Subject: Re: IndexDivisor
How do you measure memory consumption?
If you pass -1 for the divisor do you still see no difference?
C
loaded all the
database with index divisor value 1000, 5000, and 1 and the memory
consumption seems to be same.
Regards
Ganesh
- Original Message -
From: "Michael McCandless"
To:
Sent: Thursday, December 03, 2009 4:09 PM
Subject: Re: IndexDivisor
That's indeed ho
to
IndexDivisor.
Regards
Ganesh
- Original Message -
From: "Danil ŢORIN"
To:
Sent: Friday, November 27, 2009 4:00 PM
Subject: Re: IndexDivisor
Try to open with very large value (MAX_INT) it will load only first
term, and look up the rest from disk.
On Fri, Nov 27, 2009 at 1
cache?
Is there any functionality to load this fieldcache from disk rather completly
keeping in to memory. Something similar to ehcache.
Is any optimization done in sorting.
Regards
Ganesh
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when the index is upgraded from 2.4.1 to 2.9.1
Regards
Ganesh
- Original Message -
From: "Ganesh"
To:
Sent: Monday, November 30, 2009 10:14 AM
Subject: PerFieldAnalyzerWrapper
Hello all,
I am having an index build using v2.4.1. I upgraded to 2,9.1. The index was
sea
overcome this issue.
Regards
Ganesh
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Thanks,
May i know the purpose of using negative value?
Regards
Ganesh
- Original Message -
From: "Michael McCandless"
To:
Sent: Friday, November 27, 2009 3:17 PM
Subject: Re: IndexDivisor
> This is the expected behavior.
>
> If you intend to use the reader for
tting this value to -1, No memory will be used and the terms
will be fetched from the disk. Search might be slow but with very less memory
consumption.
Regards
Ganesh
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to modify\search the index created by 2.4.1? Is backward
compatibility maintained?
Regards
Ganesh
- Original Message -
From: "Uwe Schindler"
To:
Sent: Thursday, November 26, 2009 2:26 PM
Subject: RE: API changes in 2.9
> You can use these APIs. They are only marked as
;, but in both the class there is a note "NOTE: This API is
experimental and might change in incompatible ways in the next release. "
Shall I go ahead and update the API or use the older one till 3.0?
This red note is added to couple of other placeses. Shall we go ahead and use
the
Hello all,
I am having millions of records in the database and in that 75% of the records
required to be sorted. Does 2.9 provides facility to do custom sorting (Avoid
loading all records) ?
Regards
Ganesh
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You could keep multiple writers opened and it will do no harm. I am doing this.
Its good to reopen (close and open) the writer at certain interval. This will
release the memory it holds. Whenever i create a new database, I reopen writers
belong to all database.
Regards
Ganesh
the User updates the same record in the same interval,
then i am loosing one update.
Is there any way to resolve this issue using Lucene. I don't think 2.9 supports
payload per document, which could be updated independently to the document.
Regards
Ganesh
- Original Message -
Thanks Michael.
Below order helped to solve the issue,
1. DB optimize
2. DB commit
3. Reopen new reader
4. Close old reader
5. Close writer
6. Open writer
Regards
Ganesh
- Original Message -
From: "Michael McCandless"
To:
Sent: Tuesday, November 03, 2009 9:05 PM
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