I am seeing a similar issue. I have also confirmed it only appears on CDH 5.7.0 clusters ( I have another CDH 5.4.8 cluster that is not seeing any issues, only clusters that were upgraded to 5.7.0--have this issue. I am not using Kerberos, or KIS, etc. We are using standard Unix security, and am  seeing a simmilar issue as per the log snippet posted below:   [admin] webapp=null path=/admin/cores params={action=STATUS&wt=json} status=0 QTime=0 May 1, 6:56:15.914 AM INFO org.apache.solr.servlet.SolrDispatchFilter Could not consume full client request java.io.IOException: Stream closed at org.apache.catalina.connector.InputBuffer.readByte(InputBuffer.java:315) at org.apache.catalina.connector.CoyoteInputStream.read(CoyoteInputStream.java:105) at org.apache.solr.servlet.SolrDispatchFilter.consumeInput(SolrDispatchFilter.java:916) at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:223) at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:216) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.solr.servlet.SolrHadoopAuthenticationFilter$2.doFilter(SolrHadoopAuthenticationFilter.java:394) at org.apache.hadoop.security.authentication.server.AuthenticationFilter.doFilter(AuthenticationFilter.java:622) at org.apache.hadoop.security.token.delegation.web.DelegationTokenAuthenticationFilter.doFilter(DelegationTokenAuthenticationFilter.java:291) at org.apache.hadoop.security.authentication.server.AuthenticationFilter.doFilter(AuthenticationFilter.java:574) at org.apache.solr.servlet.SolrHadoopAuthenticationFilter.doFilter(SolrHadoopAuthenticationFilter.java:399) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.solr.servlet.HostnameFilter.doFilter(HostnameFilter.java:86) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:620) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) at java.lang.Thread.run(Thread.java:745) May 1, 6:56:16.093 AM INFO org.apache.solr.servlet.SolrDispatchFilter [admin] webapp=null path=/admin/cores params={action=STATUS&wt=json} status=0 QTime=0 May 1, 6:56:55.797 AM INFO org.apache.solr.common.cloud.ZkStateReader A cluster state change: WatchedEvent state:SyncConnected type:NodeDataChanged path:/clusterstate.json, has occurred - updating... (live nodes size: 25) May 1, 6:56:56.119 AM INFO org.apache.solr.common.cloud.ZkStateReader A cluster state change: WatchedEvent state:SyncConnected type:NodeDataChanged path:/clusterstate.json, has occurred - updating... (live nodes size: 23) May 1, 6:56:56.416 AM INFO org.apache.solr.common.cloud.ZkStateReader A cluster state change: WatchedEvent state:SyncConnected type:NodeDataChanged path:/clusterstate.json, has occurred - updating... (live nodes size: 18) May 1, 6:56:56.541 AM INFO org.apache.solr.common.cloud.ZkStateReader A cluster state change: WatchedEvent state:SyncConnected type:NodeDataChanged path:/clusterstate.json, has occurred - updating... (live nodes size: 17) May 1, 6:56:56.695 AM INFO org.apache.solr.common.cloud.ZkStateReader A cluster state change: WatchedEvent state:SyncConnected type:NodeDataChanged path:/clusterstate.json, has occurred - updating... (live nodes size: 16) May 1, 6:56:56.935 AM INFO org.apache.solr.common.cloud.ZkStateReader A cluster state change: WatchedEvent state:SyncConnected type:NodeDataChanged path:/clusterstate.json, has occurred - updating... (live nodes size: 14) May 1, 6:56:57.094 AM INFO org.apache.solr.common.cloud.ZkStateReader A cluster state change: WatchedEvent state:SyncConnected type:NodeDataChanged path:/clusterstate.json, has occurred - updating... (live nodes size: 12) May 1, 6:56:57.513 AM INFO org.apache.solr.common.cloud.ZkStateReader A cluster state change: WatchedEvent state:SyncConnected type:NodeDataChanged path:/clusterstate.json, has occurred - updating... (live nodes size: 9) May 1, 6:56:57.675 AM INFO org.apache.solr.common.cloud.ZkStateReader A cluster state change: WatchedEvent state:SyncConnected type:NodeDataChanged path:/clusterstate.json, has occurred - updating... (live nodes size: 7) May 1, 6:56:57.814 AM INFO org.apache.solr.common.cloud.ZkStateReader A cluster state change: WatchedEvent state:SyncConnected type:NodeDataChanged path:/clusterstate.json, has occurred - updating... (live nodes size: 6) May 1, 6:56:57.817 AM INFO org.apache.solr.common.cloud.ZkStateReader A cluster state change: WatchedEvent state:SyncConnected type:NodeDataChanged path:/clusterstate.json, has occurred - updating... (live nodes size: 6) May 1, 6:56:57.923 AM INFO org.apache.solr.common.cloud.ZkStateReader A cluster state change: WatchedEvent state:SyncConnected type:NodeDataChanged path:/clusterstate.json, has occurred - updating... (live nodes size: 6) May 1, 6:56:58.010 AM INFO org.apache.zookeeper.ZooKeeper Session: 0x4546493a57d0107 closed May 1, 6:56:58.010 AM INFO org.apache.zookeeper.ClientCnxn EventThread shut down May 1, 6:56:58.011 AM ERROR org.apache.hadoop.security.token.delegation.AbstractDelegationTokenSecretManager ExpiredTokenRemover received java.lang.InterruptedException: sleep interrupted May 1, 6:56:58.015 AM INFO org.apache.solr.core.CoreContainer Shutting down CoreContainer instance=402797011 May 1, 6:56:58.015 AM INFO org.apache.solr.cloud.ZkController Publish node=chsnmphbase87.usdc2.oraclecloud.com:8970_solr as DOWN May 1, 6:56:58.022 AM INFO org.apache.zookeeper.ClientCnxn EventThread shut down May 1, 6:56:58.022 AM INFO org.apache.zookeeper.ZooKeeper Session: 0x5546493a7a5014b closed May 1, 6:56:58.024 AM WARN org.apache.solr.common.cloud.ZkStateReader ZooKeeper watch triggered, but Solr cannot talk to ZK   ... View more