Solr Delta index questions

[Honglin Li <ho...@huawei.com>]

Hi, all,
 
Assuming my data is in a RDB, and I conduct a full index first, then a delta
index every couple of hours. I have the following questions:
 
* Once a delta index is generated, will it get merged with the full index?
 
* Do I still need to generate the full index once a while in order to
improve performance? Say, once a day.
 
 I am saying that a clean full index might be better than one full merged
with many delta index.
 
Thanks,
 
Honglin  
 
 
 
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Re: Solr Delta index questions

[Lance Norskog <go...@gmail.com>]

The delta import operation adds more records to the index, so the
index gets bigger.

Any index will be a little disorganized after the indexing pass. The
'optimize' operation collapses the "messy" index into a "clean" one.
You can try running an optimize once a day until you learn more about
operating a Solr instance.

Lance

On Thu, Jun 10, 2010 at 3:20 PM, Honglin Li <ho...@huawei.com> wrote:
> Hi, all,
>
> Assuming my data is in a RDB, and I conduct a full index first, then a delta
> index every couple of hours. I have the following questions:
>
> * Once a delta index is generated, will it get merged with the full index?
>
> * Do I still need to generate the full index once a while in order to
> improve performance? Say, once a day.
>
>  I am saying that a clean full index might be better than one full merged
> with many delta index.
>
> Thanks,
>
> Honglin
>
>
>
> ****************************************************************************
> ***************
> This e-mail and its attachments contain confidential information from
> HUAWEI, which is
> intended only for the person or entity whose address is listed above. Any
> use of the
> information contained herein in any way (including, but not limited to,
> total or partial
> disclosure, reproduction, or dissemination) by persons other than the
> intended recipient(s)
> is prohibited. If you receive this e-mail in error, please notify the sender
> by phone or
> email immediately and delete it!
> ****************************************************************************
> ***************
>
>



-- 
Lance Norskog
goksron@gmail.com