In practice, in my experience at least, a very 'expensive' commit can still slow down searches significantly, I think just due to CPU (or i/o?) starvation. Not sure anything can be done about that. That's my experience in Solr 1.4.1, but since searches have always been async with commits, it probably is the same situation even in more recent versions, I'd guess.

On 7/18/2011 11:07 AM, Yonik Seeley wrote:
On Mon, Jul 18, 2011 at 10:53 AM, Nicholas Chase<nch...@earthlink.net>  wrote:
Very glad to hear that NRT is finally here!  But my question is this: will
things still come to a standstill during a commit?
New updates can now proceed in parallel with a commit, and
searches have always been completely asynchronous w.r.t. commits.

-Yonik
http://www.lucidimagination.com

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