Hi @Jonas Straub,do as your article ,i create collection by curl command,and got the 401 error: curl –negotiate –u : ‘http://myhost:8983/solr/admin/collections?action=CREATE&name=col&numShards=1&replicationFactor=1&collection.configName=_default&wt=json’ { “responseHeader”:{ “status”:0, “QTime”:31818}, “failure”:{ “myhost:8983_solr”:”org.apache.solr.client.solrj.impl.HttpSolrClient$RemoteSolrException:Error from server at http://myhost:8983/solr:Excepted mime type application/octet-stream but got text/html. <html> <head> <meta http-equiv=\”Content-Type\” content=\”text/html;charset=utf-8\”/>” <title> Error 401 Authentication required </title> </head> <body> <h2>HTTP ERROR 401</h2> <p> Problem accessing /solr/admin/cores.Reason: <pre> Authentication required</pre> </p> </body> </html> } } When I debug the solr source code, found this exception is returned by “coreContainer.getZKController().getOverseerCollectionQueue().offer(Utils.toJson(m), timeout)”,so I doubt maybe the solr don’t authenticate zookeeper info and I use a no-kerberos zookeeper to replace the Kerberos zookeeper, solr collection can be created successfully. How to solve the problem with Kerberos ZK?
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