: Okay, I did that. Shut off traffic to the server, restarted solr, ran : a few queries against it, then turned traffic back on, and it's : running fine now. So maybe the initial flood of requests has something : to do with it?
an initial flood of requests to a completley cold index can definitely hang while the index gets loaded, pages get swapped in, and FieldCaches get constructed ... but i'm really amazed that it just flat out wouldn't accept connections for 3 or 4 hours ... did you try taking some thread dumps like yonik suggested to see what all the threads were doing? -Hoss
