: after a lot of investigation today, I found that its the spellcheck : component which is causing the issue. If its turned off, all will run well : and core can easily reload. However, when the spellcheck is on, the core : wont reload instead hang forever.
Can you take some stack traces while the server is hung? Do you have any firstSearcher or newSearcher warming queries configured? If so can you try adding "spellcheck=false" to those warming queries and see if it eliminates the problem? Smells like this thread... https://mail-archives.apache.org/mod_mbox/lucene-solr-user/201309.mbox/%3Calpine.DEB.2.02.1309061149310.10818@frisbee%3E ...would be good to get a jira open with a reproducible set of configs that demonstrates the problem semi-reliably.. -Hoss
