On 3/1/2022 9:55 AM, Matthew Lapointe wrote:
I have been reading the documentation on UpdateHandlers and Near Real Time Searching, and I'm wondering if there is any practical difference between these two configurations:- autoSoftCommit enabled, with maxTime=10000 and commitWithin not specified - autoSoftCommit disabled, commitWithin=10000 set on each update request My assumption is that the functionality would be the same, but just wanted to make sure I'm not missing something. Currently we are using autoSoftCommit, but using commitWithin seems potentially better if it would enable using a larger commitWithin for some lower priority updates.
The effective outcome should be the same for those scenarios if a significant majority of index updates have the commitWithin specified. Assuming you're on a pretty new release. The default for commitWithin is to do a soft commit in recent Solr versions. I don't know if that has always been its behavior or if that default was changed from hard to soft at some point.
For this scenario, I personally would set up autoSoftCommit as well as using commitWithin. Set the automatic setting to have a larger value than the commitWithin, so it acts as a safety valve that catches any updates that were missing the commitWithin. Maybe 60000?
If your commits end up taking longer than 10 seconds, then you'll want to consider making the interval longer, so that you're not running multiple commits at the same time.
Thanks, Shawn
