On 7/31/2013 7:30 AM, Cool Techi wrote: > We have a solr master slave set up with close to 30 million records. Our > index changes/updates very frequently and replication is set up at 60 seconds > delay. > > Now every time replication completes, the new searches take a time. How can > this be improved? I have come across that warming would help this scenario, I > our case we cannot warm some queries, but most of the users use the last 15 > days data only. > > So would it be possible to auto warm only last 15 days data?
Autowarming is generally done automatically when a new searcher is opened, according to the cache config. It will take the most recent N queries in the cache (according to the autowarmCount) and re-execute those queries against the index to populate the cache. The document cache cannot be warmed directly, but when the query result cache is warmed, that will also populate the document cache. Because you have a potentially very frequent interval for opening new searchers (possibly replicating every 60 seconds), you will want to avoid large autowarmCount values. If your autowarming ends up taking too long, the system will try to open a new searcher while the previous one is being warmed, which can lead to problems. I have found that the filterCache is particularly slow to warm. Thanks, Shawn
