Hi,

Any inputs on this would be really helpful. Looking for suggestions/viewpoints 
from you guys.

Regards,
Sourav

-----Original Message-----
From: souravm 
Sent: Saturday, December 06, 2008 9:41 PM
To: solr-user@lucene.apache.org
Subject: Limitations of Distributed Search ....

Hi,

We are planning to use Solr for processing large volume of application log 
files (around ~ 10 Billions documents of size 5-6 TB).

One of the approach we are considering for the same is to use Distributed 
Search extensively. 

What we have in mind is distributing the log files in multiple boxes monthly or 
weekly basis - where at the weekly basis itself the volume can go to the level 
of 200 M of documents. And a search query can spread across all weeks (e.g. 
number of a given txn for 1st 6 months of a year)

However, what we are not sure how well the distributed search would scale when 
we may use around 50-60 boxes to distribute indexed documents on weekly basis. 
The specific questions I have in mind are -

a) How would be the impact on the performance when a query spreads over 50 boxes
b) Is there any hard limit on the number of slaves which can be contacted from 
the master server?
c) How much load will this type of approach create on master server for merging 
data, keeping the track whether a slave is down or not
d) Any other manageability issues with so many slaves

If anyone of you have deployed Solr in such a environment it would be great if 
you can share your experience on the same.

Thanks in advance.

Regards,
Sourav



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