Hello, We are trying to upgrade from Solr 6.6 to Solr 7.2.1 and we are using Solr Cloud.
Doing some tests with 2 replicas, ZooKeeper doesn't know which one to elect as a leader: ERROR org.apache.solr.cloud.ZkController:getLeader:1206 - Error getting leader from zk org.apache.solr.common.SolrException: There is conflicting information about the leader of shard: shard1 our state says:http://host1:8080/searchsolrnodefr/fr_blue/ but zookeeper says:http://host2:8080/searchsolrnodefr/fr_blue/ solr.xml file: <bool name="genericCoreNodeNames">${genericCoreNodeNames:true}</bool> In the core.properties files, each replica has the same coreNodeName value: "core_node1". When changing this property on host2 with value "core_node2", ZooKeeper can elect a leader and everything is fine. Do we need to set genericCoreNodeNames to false in solr.xml ? Gaƫl