: I'm going to go ahead and replay to myself since I solved my problem. It : seems I was doing one more update to the data at the end and wasn't doing a : commit, so it then couldn't write to the other core. Adding the last commit : seems to have fixed everything.
sending interleaving updates to multiple cores shouldn't have caused any locking related problems -- unless for some reason both cores are using the same index (ie: do you have them configured to use the same data directory?) that would be very bad. (if you are doing this intentionally, please explain your goal, because i can't think of any reason why you might want two solr cores in the same solr instance wanting to use the same solr index) -Hoss
