I've got a question from Doug's original email about replication (
http://www.mail-archive.com/lucene-u...@jakarta.apache.org/msg12709.html):
"1. On the index master, periodically checkpoint the index. Every minute or
so the IndexWriter is closed and a 'cp -lr index index.DATE' command is
executed
Hi All,
I am facing a scenrio where I am considering using Lucene over the existing
implementation. The move to Lucene is going to require a lot of re-work so I
though I better post this and ask for an expert opinion.
Background
There are 3 tables.
1. University
2. Course
3. Subjects
A un
Well, I have seen this link many times before. It doesn't really explain
the data structures part of it. Perhaps I should have asked my question
this way:
"What data structures are being used by Lucene to read the posting lists
from the index ?" .
My guess is that a hash table is being used for
Hi Paul,
thanks for your reply.
I compared your source code and it seems that you are using the same
mechanism for the singleton like me... I am using lucene 2.4 and get the
exception above explained.
I am wondering why because I only create an instance of my lucene object
(which itself construct
Hi,
I am having a memory issue with Lucene2.4. I am strating a process
with 128MB of ram, this process handles incoming request from others,
and indexes objects in a number of lucene indexes.
My lucene docs, all have 6 fields:
-one is small: Field.Store.YES, Field.Index.UN_TOKENIZED, Field.TermVe
This is where things get exciting, when theory runs right up
against the particular problem at hand...
What if your document consisted of a content field (perhaps broken
into as many pieces as necessary) and multiple references?
Something like:
Document doc = new Document()
doc.add("content", ...
On Dec 15, 2008, at 12:44 PM, Chris Bamford wrote:
One question (thinking ahead now): how to differentiate between
content and reference hits if they are retrieved from the same
index? Presumably I will need to try to retrieve a field which only
exists in one and if it fails, I know it must
Hi Erick,
You raise some excellent points. First let me explain why our structure
is the way it is ..
There is not actually a strict 1-1 relationship between entries in the
two indexes. One represents content, the other, references.
There can only ever be 1 content item, but there can be seve
Thanks for the help. I've been reading through some of the postings
so I'll look that one up.
Appreciate it.
Todd
On Mon, Dec 15, 2008 at 8:43 AM, Greg Shackles wrote:
> Hey Todd,
>
> If you look for a thread I started a month or two ago, there was a pretty
> good discussion of payloads (it is
Stop it right now . You've gotta take off your DB hat and put
on your searching hat to get the most out of Lucene. So I'd
think about the following:
1> Why do you have two indexes? Why not just put all
the data into a single index? The fields are disjoint anyway
Note that there is no
Hi
I have a situation where I have two related indexes which are logically
linked by a common field called INDEXID. All other fields differ between
the two indexes. For any given INDEXID I would like to be able to
retrieve the matching pair of documents, one from each index. (Logically
this i
Hey Todd,
If you look for a thread I started a month or two ago, there was a pretty
good discussion of payloads (it is where I initially learned about them).
In that thread should also be an explanation of the solution I ended up
using for implementing payloads, so maybe that would be helpful for
Thanks Mark, worked a treat.
Mark Miller wrote:
Chris Bamford wrote:
Mark
> Look for the static factory methods on IndexReader.
I take it you mean IndexReader.open (dir, true) ?
Yeah.
If so, how do I then pass that into DelayCloseIndexSearcher() so that
I can continue to rely on all the e
I fixed this problem by writing an external Java class and changing completly
to Lucene-2.4.0.
The SpellChecker now returns results but it is very slow.
My index contains about 2 words, I don't think this is too much.
How can I speed it up?
My temporary method:
public static Vector suggest
http://lucene.apache.org/java/2_4_0/fileformats.html
On Dec 15, 2008, at 12:15 AM, Prafulla Kiran wrote:
Hi Everybody,
Could someone please explain the actual data structures being used
by Lucene for storing the postings list in the index. I see a file
called MultileveSkipListReader and Mu
Le 15-déc.-08 à 13:09, Zender00 a écrit :
in my opinion it is possible to use a reader and writer
simultanesously on
the same index. In my already working lucene class, I use they are
both open
all the time.
mmmh...
But this isnt the reason for my exception. It seems that lucene cannot
Hi paul,
in my opinion it is possible to use a reader and writer simultanesously on
the same index. In my already working lucene class, I use they are both open
all the time.
But this isnt the reason for my exception. It seems that lucene cannot
handle my singleton. How did you implement your si
We use singletons all the time,
Just be careful that are writer and a reader cannot be opened
simultaneously on the same index. Either you write or your read (and
delete).
paul
Le 15-déc.-08 à 12:06, Zender00 a écrit :
I extend my original post:
How is it possible to use lucene in 2 di
I extend my original post:
How is it possible to use lucene in 2 diffent classes / objects, if I dont
want to use static methods/variables?
(one object read/writer, the other is read only)
Kind regards,
D. Penning
Zender00 wrote:
>
> Hi,
> I tried to implement a singleton pattern for my already
Hi,
After adding fields, those fields are analyzed and this is the step you
are looking for.
The payloads are stored on each Token, so you need your own Analyzer to
do so.
just use reusableToken.setPayload(myPayLoad) somewhere, look at already
existing analyzers.
In our case we use TokenStream
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