I'll just send it to java-user in a bit in order to get the answers only from 
Lucene users (and not peeps just passing by lucene.apache.org).

Otis

----- Original Message ----
From: Grant Ingersoll <[EMAIL PROTECTED]>
To: java-dev@lucene.apache.org
Sent: Friday, June 16, 2006 6:53:57 AM
Subject: Re: Java 1.5 was [jira] Updated: (LUCENE-600) ParallelWriter companion 
to ParallelReader

+1

Do you want to post it on the user list?  It might also be good to put 
it up on the main website.

Otis Gospodnetic wrote:
> Grant: how to poll users?  How about this: 
> http://www.quimble.com/poll/view/2156 ?  If you think that's ok, we can send 
> that to java-user tomorrow and see.  Hey, how about some bets?  I'll put a 
> $10 for a beer on 1.5.
>
>   
Wow, $10 for a beer?  That must be some pretty good beer.  Either that 
or you live in New York City and that is a cheap beer!  Anyway, I am 
betting it is 1.5 as well.  Maybe we can get together at ApacheCon or 
something for one...



> Otis
>
> ----- Original Message ----
> From: Grant Ingersoll <[EMAIL PROTECTED]>
> To: java-dev@lucene.apache.org
> Sent: Tuesday, June 13, 2006 5:01:30 PM
> Subject: Re: Java 1.5 was [jira] Updated: (LUCENE-600) ParallelWriter 
> companion to ParallelReader
>
>
>   
>> In addition to performance, productivity and functionality benefits, my
>> main argument for 1.5 is that it is used by the vast majority of lucene
>> community members.  
>>     
>
> I am not so sure about this. Perhaps we should take a poll on the user 
> list?  Not even sure how that would be managed or counted, but...
>
>   
>> Everything I write is in 1.5 and I don't have time
>> to backport.  I have a significant body of code from which to extract
>> and contribute patches that others would likely find useful.  How many
>> others are in a similar position?
>>   
>>     
> I definitely would prefer to make future contributions in 1.5 (even the 
> patch we just contributed (issue 545) could have been better given 1.5, 
> but it is fine with 1.4 as well).  I tend to think if people don't want 
> the new functionality or if it breaks their app. then they need not 
> upgrade, or they can contribute patches against the branches for prior 
> releases and we can support that as needed.   To me, this is what major 
> releases are about.  I know that when a major release comes out that I 
> should expect library changes that may break my code.  If I don't want 
> that pain, then I don't upgrade.
>   
>> On the side, not leaving valued community members behind is important.
>>
>> I think the pmc / committers just need to make a decision which will
>> impact one group or the other.
>>
>> Chuck
>>
>>
>> Grant Ingersoll wrote on 06/13/2006 03:35 AM:
>>   
>>     
>>> Well, we have our first Java 1.5 patch...  Now that we have had a week
>>> or two to digest the comments, do we want to reopen the discussion?
>>>
>>> Chuck Williams (JIRA) wrote:
>>>     
>>>       
>>>>      [ http://issues.apache.org/jira/browse/LUCENE-600?page=all ]
>>>>
>>>> Chuck Williams updated LUCENE-600:
>>>> ----------------------------------
>>>>
>>>>     Attachment: ParallelWriter.patch
>>>>
>>>> Patch to create and integrate ParallelWriter, Writable and
>>>> TestParallelWriter -- also modifies build to use java 1.5.
>>>>
>>>>
>>>>  
>>>>       
>>>>         
>>>>> ParallelWriter companion to ParallelReader
>>>>> ------------------------------------------
>>>>>
>>>>>          Key: LUCENE-600
>>>>>          URL: http://issues.apache.org/jira/browse/LUCENE-600
>>>>>      Project: Lucene - Java
>>>>>         Type: Improvement
>>>>>     
>>>>>         
>>>>>           
>>>>  
>>>>       
>>>>         
>>>>>   Components: Index
>>>>>     Versions: 2.1
>>>>>     Reporter: Chuck Williams
>>>>>  Attachments: ParallelWriter.patch
>>>>>
>>>>> A new class ParallelWriter is provided that serves as a companion to
>>>>> ParallelReader.  ParallelWriter meets all of the doc-id
>>>>> synchronization requirements of ParallelReader, subject to:
>>>>>     1.  ParallelWriter.addDocument() is synchronized, which might
>>>>> have an adverse effect on performance.  The writes to the
>>>>> sub-indexes are, however, done in parallel.
>>>>>     2.  The application must ensure that the ParallelReader is never
>>>>> reopened inside ParallelWriter.addDocument(), else it might find the
>>>>> sub-indexes out of sync.
>>>>>     3.  The application must deal with recovery from
>>>>> ParallelWriter.addDocument() exceptions.  Recovery must restore the
>>>>> synchronization of doc-ids, e.g. by deleting any trailing
>>>>> document(s) in one sub-index that were not successfully added to all
>>>>> sub-indexes, and then optimizing all sub-indexes.
>>>>> A new interface, Writable, is provided to abstract IndexWriter and
>>>>> ParallelWriter.  This is in the same spirit as the existing
>>>>> Searchable and Fieldable classes.
>>>>> This implementation uses java 1.5.  The patch applies against
>>>>> today's svn head.  All tests pass, including the new
>>>>> TestParallelWriter.
>>>>>     
>>>>>         
>>>>>           
>>>>   
>>>>       
>>>>         
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>>
>>
>>   
>>     
>
>   

-- 

Grant Ingersoll 
Sr. Software Engineer 
Center for Natural Language Processing 
Syracuse University 
School of Information Studies 
335 Hinds Hall 
Syracuse, NY 13244 

http://www.cnlp.org 
Voice:  315-443-5484 
Fax: 315-443-6886 


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