Re: Solr 4, optimizing while doing other updates?

[Shawn Heisey]

On 11/26/2012 5:56 PM, Walter Underwood wrote:
You can optimize during updates, but you should not optimize at all, especially 
if you are doing continuous updates. Hands off that knob.

I promise I'm not optimizing just because it's got a cool name, or 
because a README/HOWTO said to do it. I optimize my tiny index once an 
hour, and the large indexes once every six days (one of them gets 
optimized every day, using DAY_OF_YEAR % 6).

The only reason I do the optimizes is to expunge deletes. The indexer 
program does inserts, reinserts, and deletes once a minute, most of 
which hit the tiny index.  On the large indexes, between 25000 and 
500000 documents get deleted over the course of the six day optimize 
interval.

Thanks,
Shawn