After many, many tests it is "time to say goodbye" to SolrCloud and I belief it is not running and useful at all. :-(
I reduced to only 3 servers (Solr and Zookeeper) and tried to _only_ create a simple single collection, but even this fails. bin/solr create -c base -d /home/solr/solr/solr/server/solr/configsets/base_configs/ <console> Connecting to ZooKeeper at solrmn01:2181,solrmn02:2181,solrmn03:2181 ... INFO - 2017-05-04 13:56:12.889; org.apache.solr.client.solrj.impl.ZkClientClusterStateProvider; Cluster at solrmn01:2181,solrmn02:2181,solrmn03:2181 ready Uploading /home/solr/solr/solr/server/solr/configsets/base_configs/conf for config base to ZooKeeper at solrmn01:2181,solrmn02:2181,solrmn03:2181 Creating new collection 'base' using command: http://solrmn01.ub.de:8983/solr/admin/collections?action=CREATE&name=base&numShards=1& replicationFactor=1&maxShardsPerNode=1&collection.configName=base INFO - 2017-05-04 13:57:01.341; org.apache.http.impl.client.DefaultRequestDirector; I/O exception (org.apache.http.NoHttpResponseException) caught when processing request to {}->http://solrmn01.ub.de:8983: The target server failed to respond INFO - 2017-05-04 13:57:01.343; org.apache.http.impl.client.DefaultRequestDirector; Retrying request to {}->http://solrmn01.ub.de:8983 ERROR: Connection refused (Connection refused) </console> Regards Bernd Am 04.05.2017 um 10:13 schrieb Bernd Fehling: > Hi list, > next problem with SolrCloud. > Situation: > - 5 x Zookeeper fresh, clean on 5 server > - 5 x Solr 6.5.1 fresh, clean on 5 server > - start of Zookeepers > - upload of configset with Solr to Zookeepers > - start of only one Solr instance port 8983 on each server > - With Solr Admin GUI check that all Solr instances are up and in Zookeeper > - click on Collection -> Add Collection > - fill in "name", "config set" (the uploaded config), numShards 5, > replicationFactor 1 > - click on "Add Collection" > > Response ist red banner with "Connection to Solr lost" and > "Please check the Solr instance". > > "bin/solr status" says that _all_ Solr instances on _all_ servers are gone. > > What am I doing wrong? > > I just want to setup 5 Zookeeper on 5 server, have 5 Shards on 5 server > and want to create a new Collection with Admin Gui. > Is this at all possible? > > Regards > Bernd >