Additional information : Try single core reload I identified that an entire shard is not reloading ( while the other shard is ). Taking a look to the "not reloading" shard ( 2 replicas) , it seems that the core reload stucks here :
org.apache.solr.core.SolrCores#waitAddPendingCoreOps The problem is that the wait seems to continue indefinitely and silently. Apart a restart, is there any way to clean up the pending core operations ? I will continue my investigations ----- --------------- Alessandro Benedetti Search Consultant, R&D Software Engineer, Director Sease Ltd. - www.sease.io -- View this message in context: http://lucene.472066.n3.nabble.com/Apache-Solr-4-10-x-Collection-Reload-times-out-tp4346075p4346966.html Sent from the Solr - User mailing list archive at Nabble.com.