I like that name! That's a good way to think of it, assuming the available coins/bill denominations grow exponentially with a base roughly of mergeFactor :)
It's also like the odometer on a car. Mike On Tue, Apr 6, 2010 at 10:51 PM, Lance Norskog <goks...@gmail.com> wrote: > Ok, thanks. I'm studying the RAM buffer/MergePolicy nexus as we speak. > > I hereby name the function "minimum number of coins and bills needed > to represent a number" as its "change log". > > On Tue, Apr 6, 2010 at 2:08 AM, Michael McCandless > <luc...@mikemccandless.com> wrote: >> Actually this isn't quite right. >> >> Lucene flushes a new segment whenever RAM is full (not every 5 docs if >> mergeFactor is 5). >> >> Whereas mergeFactor decides how many segments of roughly the same size >> are merged at once. >> >> So eg if you index 42 docs, unless the docs are immense (or, are not >> indexed in a single session), that will create 1 segment. >> >> Mike >> >> On Mon, Apr 5, 2010 at 6:21 PM, Lance Norskog <goks...@gmail.com> wrote: >>> mergeFactor=5 means that if there are 42 documents, there will be 3 index >>> files: >>> >>> 1 with 25 documents, >>> 3 with 5 documents, and >>> 1 with 2 documents >>> >>> Imagine making change with coins of 1 document, 5 documents, 5^2 >>> documents, 5^3 documents, etc. >>> >>> On Mon, Apr 5, 2010 at 10:59 AM, Chris Hostetter >>> <hossman_luc...@fucit.org> wrote: >>>> >>>> This sounds completley normal form what i remembe about mergeFactor. >>>> >>>> Segmenets are merged "by level" meaning that with a mergeFactor of 5, once >>>> 5 "level 1" segments are formed they are merged into a single "level 2" >>>> segment. then 5 more "level 1" segments are allowed to form before the >>>> next merge (resulting in 2 "legel 2" sements). Once you have 5 "level 2" >>>> sements, then they are all merged into a single "level 3" segment, etc... >>>> >>>> : I had my mergeFactor as 5 , >>>> : but when i load a data with some 1,00,000 i got some 12 .cfs files in my >>>> : data/index folder . >>>> : >>>> : How come this is possible . >>>> : in what context we can have more no of .cfs files >>>> >>>> >>>> -Hoss >>>> >>>> >>> >>> >>> >>> -- >>> Lance Norskog >>> goks...@gmail.com >>> >> > > > > -- > Lance Norskog > goks...@gmail.com >
