Hello, Otis.
There is a big difference when you use compound index format or
multiple files. I have tested it on the big index (45 Gb). When I used
compound file then optimize takes 3 times more space, b/c *.cfs needs
to be unpacked.
Now I do use non compound file format. It needs like twice as much
disk space.
OG> Have you tried using the multifile index format? Now I wonder if there
OG> is actually a difference in disk space cosumed by optimize() when you
OG> use multifile and compound index format...
OG> Otis
OG> --- "Kauler, Leto S" <[EMAIL PROTECTED]> wrote:
>> Our copy of LIA is "in the mail" ;)
>>
>> Yes the final three files are: the .cfs (46.8MB), deletable (4
>> bytes),
>> and segments (29 bytes).
>>
>> --Leto
>>
>>
>>
>> > -Original Message-
>> > From: Otis Gospodnetic [mailto:[EMAIL PROTECTED]
>> >
>> > Hello,
>> >
>> > Yes, that is how optimize works - copies all existing index
>> > segments into one unified index segment, thus optimizing it.
>> >
>> > see hit #1:
>> http://www.lucenebook.com/search?query=optimize+disk+space
>> >
>> > However, three times the space sounds a bit too much, or I
>> > make a mistake in the book. :)
>> >
>> > You said you end up with 3 files - .cfs is one of them, right?
>> >
>> > Otis
>> >
>> >
>> > --- "Kauler, Leto S" <[EMAIL PROTECTED]> wrote:
>> >
>> > >
>> > > Just a quick question: after writing an index and then calling
>> > > optimize(), is it normal for the index to expand to about
>> > three times
>> > > the size before finally compressing?
>> > >
>> > > In our case the optimise grinds the disk, expanding the index
>> into
>> > > many files of about 145MB total, before compressing down to three
>>
>> > > files of about 47MB total. That must be a lot of disk activity
>> for
>> > > the people with multi-gigabyte indexes!
>> > >
>> > > Regards,
>> > > Leto
>>
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Yura Smolsky,
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