Hi,
Can someone please say what I am missing in this case? I have solr 6.3.0, and enabled http authentication, the configuration has been uploaded to zookeeper. But I do see below error in logs sometimes. Are the nodes not able to ciommunicate because of this error? I am not seeing any functionality loss. Authentication for the admin screen works great. In solr.in.sh, should I set? SOLR_AUTHENTICATION_OPTS="" There was a problem making a request to the leader:org.apache.solr.client.solrj.impl.HttpSolrClient$RemoteSolrException: Error from server at https://:15111/solr: Expected 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 require authentication</title> </head> <body><h2>HTTP ERROR 401</h2> <p>Problem accessing /solr/admin/cores. Reason: <pre> require authentication</pre></p> </body> </html> at org.apache.solr.client.solrj.impl.HttpSolrClient.executeMethod(HttpSolrClient.java:561) at org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:262) at org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:251) at org.apache.solr.client.solrj.SolrClient.request(SolrClient.java:1219) at org.apache.solr.cloud.ZkController.waitForLeaderToSeeDownState(ZkController.java:1647) at org.apache.solr.cloud.ZkController.registerAllCoresAsDown(ZkController.java:471) at org.apache.solr.cloud.ZkController.access$500(ZkController.java:119) at org.apache.solr.cloud.ZkController$1.command(ZkController.java:335) at org.apache.solr.common.cloud.ConnectionManager$1.update(ConnectionManager.java:168) at org.apache.solr.common.cloud.DefaultConnectionStrategy.reconnect(DefaultConnectionStrategy.java:57) at org.apache.solr.common.cloud.ConnectionManager.process(ConnectionManager.java:142) at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:522) at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:498)
