Solr version: $ solr --version Solr version is: 9.8.1
Zookeeper version: [zk: madbanana-solr-zookeeper-cluster01-hhe-dev-3.madbanana.inc:2182(CONNECTED) 1] version ZooKeeper CLI version: 3.9.2-e454e8c7283100c7caec6dcae2bc82aaecb63023, built on 2024-02-12 20:59 UTC Could someone confirm whether this issue might be related to https://issues.apache.org/jira/browse/SOLR-16023? Can't make my mind either this is a known correlation or something caused by my own setup. Symptoms: The call the GUI makes is --- curl -uREDACTED:REDACTED https://madbanana-solr-server-cluster01-dc1-dev-1.madbanana.inc:8983/solr/admin/zookeeper/status?_=1748964869438 { "responseHeader":{ "status":0, "QTime":30104 }, "zkStatus":{ "dynamicReconfig":true, "ensembleSize":3, "details":[{ "host":"madbanana-solr-zookeeper-cluster01-dc1-dev-1.madbanana.inc:2182", "ok":false },{ "host":"madbanana-solr-zookeeper-cluster01-dc1-dev-2.madbanana.inc:2182", "ok":false },{ "host":"madbanana-solr-zookeeper-cluster01-dc1-dev-3.madbanana.inc:2182", "ok":false }], "zkHost":"madbanana-solr-zookeeper-cluster01-dc1-dev-1.madbanana.inc:2182,madbanana-solr-zookeeper-cluster01-dc1-dev-2.madbanana.inc:2182,madbanana-solr-zookeeper-cluster01-dc1-dev-3.madbanana.inc:2182/solr", "errors":["Empty response from Zookeeper madbanana-solr-zookeeper-cluster01-dc1-dev-1.madbanana.inc:2182","Empty response from Zookeeper madbanana-solr-zookeeper-cluster01-dc1-dev-2.madbanana.inc:2182","Empty response from Zookeeper madbanana-solr-zookeeper-cluster01-dc1-dev-3.madbanana.inc:2182"], "status":"red" } }{ "responseHeader":{ "status":0, "QTime":30130 }, "zkStatus":{ "dynamicReconfig":true, "ensembleSize":3, "details":[{ "host":"madbanana-solr-zookeeper-cluster01-dc1-dev-1.madbanana.inc:2182", "ok":false },{ "host":"madbanana-solr-zookeeper-cluster01-dc1-dev-2.madbanana.inc:2182", "ok":false },{ "host":"madbanana-solr-zookeeper-cluster01-dc1-dev-3.madbanana.inc:2182", "ok":false }], "zkHost":"madbanana-solr-zookeeper-cluster01-dc1-dev-1.madbanana.inc:2182,madbanana-solr-zookeeper-cluster01-dc1-dev-2.madbanana.inc:2182,madbanana-solr-zookeeper-cluster01-dc1-dev-3.madbanana.inc:2182/solr", "errors":["Empty response from Zookeeper madbanana-solr-zookeeper-cluster01-dc1-dev-1.madbanana.inc:2182","Empty response from Zookeeper madbanana-solr-zookeeper-cluster01-dc1-dev-2.madbanana.inc:2182","Empty response from Zookeeper madbanana-solr-zookeeper-cluster01-dc1-dev-3.madbanana.inc:2182"], "status":"red" } When mimicking the call I get “Empty response from Zookeeper”. The same is logged in the Logging section of the GUI — Logger: ZookeeperStatusHandler Message: Failed talking to zookeeper madbanana-solr-zookeeper-cluster01-dc1-dev-1.madbanana.inc:2182 org.apache.solr.common.SolrException: Empty response from Zookeeper madbanana-solr-zookeeper-cluster01-dc1-dev-1.madbanana.inc:2182 at org.apache.solr.handler.admin.ZookeeperStatusHandler.validateZkRawResponse(ZookeeperStatusHandler.java:368) at org.apache.solr.handler.admin.ZookeeperStatusHandler.monitorZookeeper(ZookeeperStatusHandler.java:279) at org.apache.solr.handler.admin.ZookeeperStatusHandler.getZkStatus(ZookeeperStatusHandler.java:171) at org.apache.solr.handler.admin.ZookeeperStatusHandler.handleRequestBody(ZookeeperStatusHandler.java:93) at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:228) at org.apache.solr.servlet.HttpSolrCall.handleAdmin(HttpSolrCall.java:940) at org.apache.solr.servlet.HttpSolrCall.handleAdminRequest(HttpSolrCall.java:894) at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:555) at org.apache.solr.servlet.SolrDispatchFilter.dispatch(SolrDispatchFilter.java:241) at org.apache.solr.servlet.SolrDispatchFilter.lambda$doFilterRetry$0(SolrDispatchFilter.java:198) at org.apache.solr.servlet.ServletUtils.traceHttpRequestExecution2(ServletUtils.java:227) at org.apache.solr.servlet.ServletUtils.rateLimitRequest(ServletUtils.java:197) at org.apache.solr.servlet.SolrDispatchFilter.doFilterRetry(SolrDispatchFilter.java:192) at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:181) at javax.servlet.http.HttpFilter.doFilter(HttpFilter.java:97) at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:210) at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1635) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:527) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:131) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:598) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:223) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1580) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:221) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1384) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:176) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:484) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1553) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:174) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1306) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:129) at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:149) at org.eclipse.jetty.server.handler.InetAccessHandler.handle(InetAccessHandler.java:228) at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:141) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122) at org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:301) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122) at org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:822) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:122) at org.eclipse.jetty.server.Server.handle(Server.java:563) at org.eclipse.jetty.server.HttpChannel$RequestDispatchable.dispatch(HttpChannel.java:1598) at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:753) at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:501) at org.eclipse.jetty.server.HttpChannel.run(HttpChannel.java:461) at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.runTask(AdaptiveExecutionStrategy.java:421) at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.consumeTask(AdaptiveExecutionStrategy.java:390) at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.tryProduce(AdaptiveExecutionStrategy.java:277) at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.produce(AdaptiveExecutionStrategy.java:193) at org.eclipse.jetty.http2.HTTP2Connection.produce(HTTP2Connection.java:208) at org.eclipse.jetty.http2.HTTP2Connection.onFillable(HTTP2Connection.java:155) at org.eclipse.jetty.http2.HTTP2Connection$FillableCallback.succeeded(HTTP2Connection.java:450) at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:100) at org.eclipse.jetty.io.ssl.SslConnection$DecryptedEndPoint.onFillable(SslConnection.java:558) at org.eclipse.jetty.io.ssl.SslConnection.onFillable(SslConnection.java:379) at org.eclipse.jetty.io.ssl.SslConnection$2.succeeded(SslConnection.java:146) at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:100) at org.eclipse.jetty.io.SelectableChannelEndPoint$1.run(SelectableChannelEndPoint.java:53) at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.runTask(AdaptiveExecutionStrategy.java:421) at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.consumeTask(AdaptiveExecutionStrategy.java:390) at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.tryProduce(AdaptiveExecutionStrategy.java:277) at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.run(AdaptiveExecutionStrategy.java:199) at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:411) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:969) at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1194) at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1149) at java.base/java.lang.Thread.run(Thread.java:840)
