Well the Apache Software License is very generous about poaching.

"Your ideas will go further if you don't insist on going with them."

Mike McCandless

http://blog.mikemccandless.com


On Sat, Nov 15, 2014 at 6:42 AM, Will Martin <[email protected]> wrote:
> Btw: SwSong should not steal code; which implies an existing license whose 
> terms he is willing to break. Not a good first step.    ;-)
>
> will
>
> -----Original Message-----
> From: Michael McCandless [mailto:[email protected]]
> Sent: Saturday, November 15, 2014 6:22 AM
> To: [email protected]
> Subject: Re: How can I make better project than Lucene?
>
> Actually I think competing projects is very healthy for open source 
> development.
>
> There are many things you could explore to "contrast" with Lucene, e.g. write 
> your new search engine in Go not Java: Java has many problems, maybe Go fixes 
> them.  Go also has a low-latency garbage collector in development ... and 
> Java's GC options still can't scale to the heap sizes that are practical now.
>
> Lucene has many limitations, so your competing engine could focus on them.  
> E.g. the "schemalessness" of Lucene has become a big problem, and near 
> impossible to fix at this point, and prevents new important features like 
> LUCENE-5879 from being possible, so you could give your engine a "gentle" 
> schema from the start.
>
> The Lucene Filter/Query situation is a mess: one should extend the other.
>
> Lucene has weak support for proximity queries (SpanQuery is slow and does not 
> get much attention).
>
> Lucene is showing its age, missing some compelling features like a builtin 
> transaction log, "core" support for numerics (they are sort of hacked on 
> top), optimistic concurrency support (sequence ids, versions, something), 
> distributed support (near real time replication, etc.), multi-tenancy, an 
> example server implementation, so the search servers on top of Lucene have 
> had to fill these gaps.  Maybe you could make your engine distributed from 
> the start (Go is a great match for that, from what little I know).
>
> All 3 highlighter options have problems.
>
> The analysis chain (attributes) is overly complex.
>
> In your competing engine you can borrow/copy/steal from Lucene's good parts 
> to get started...
>
>
> Mike McCandless
>
> http://blog.mikemccandless.com
>
>
> On Fri, Nov 14, 2014 at 8:43 PM, swsong_dev <[email protected]> wrote:
>> I’m developing search engine, Fastcatsearch. http://github
>> <hthttp://githubtp//github>.com/fastcatsearch/fastcatsearch
>>
>> Lucene is widely known and famous project and I cannot beat Lucene for now.
>>
>> But is there any chance to beat Lucene?
>>
>> Anything like features, performance.
>>
>> Please, let me know what to do to make better product than Lucene.
>>
>> Thank you.
>

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