Several times I have destroyed and re-implemented Search Service Application. I've specified Continuous Crawl, but when I do that, the drop down box for scheduling incremental crawls changes from
Every 4 Hours.
I usually get one good crawl in that takes somewhere between 20-45 minutes, and I get decent search results. But then another full or incremental crawl begins (according to the logs), and once that happens, the continuous crawl (and the incremental or full crawl) take hours and hours and hours until I finally stop it.
What am I doing wrong here? I just want it to continuously crawl, as advertised.
UPDATE: I'm not certain that I previously articulated my problem correctly, I'm going to try again. I have re-provisioned the Search Service Application and set up my Local SharePoint Sites. Per the recommendation below, I ran a full crawl (which took 28:45) and then I ran an incremental crawl (which took 23:08).
Next, I pulled up the configuration for "Local SharePoint Sites" and selected the option for Continuous Crawl. My problem is that when I select Continuous Crawl, it changes the INCREMENTAL CRAWL interval from
None to 'Every 4 Hours.'
Why is it setting up an Incremental Crawl Schedule AT ALL, if I'm selecting Continuous Crawl?
So...when no crawls are scheduled, I can run a crawl in under 30 minutes. But once Continuous Crawls are set up, the crawl takes forever. (I'm already at 40 minutes on the "incremental crawl" that I didn't order).
I don't know how to make this work so that the crawl just works without any intervention. I can't seem to successfully complete more than one full and one incremental crawl without destroying and re-provisioning the Search Service Application, which is not a viable long-term option.