Solr 5.5.4. I have a collection with a single shard and two replicas. Both are reporting down. No shard leader exists. Each replica is on a different node. Should it be safe to attempt an ADDREPLICA command? Since there's no leader I don't know if that will work. This is the cluster state for the collection:
"SCHN":{ "shards":{"shard1":{ "range":"80000000-7fffffff", "state":"active", "replicas":{ "core_node6":{ "core":"SCHN_shard1_replica5", "base_url":"http://----:8983/solr", "node_name":"----:8983_solr", "state":"down"}, "core_node5":{ "core":"SCHN_shard1_replica2", "base_url":"http://----8983/solr", "node_name":"----:8983_solr", "state":"down"}}}}, "replicationFactor":"2", "router":{"name":"compositeId"}, "maxShardsPerNode":"1", "autoAddReplicas":"false", "znodeVersion":1127, "configName":"default"}, The logs show repeated errors for: ERROR org.apache.solr.common.SolrException Error while trying to recover. core=SCHN_shard1_replica5:org.apache.solr.common.SolrException: No registered leader was found after waiting for 4000ms , collection: SCHN slice: shard1 I've already tried bringing the nodes down and then back up. -- Sent from: https://lucene.472066.n3.nabble.com/Solr-User-f472068.html