Hi, I am using Solr 7.6.0.
When I tried to create a collection, I encountered the error of unable to get autoscaling policy session. I have 2 replicas running, and I am creating it with the following command: https://localhost:8983/solr/admin/collections?action=CREATE&name=collection1&numShards=1&replicationFactor=2&maxShardsPerNode=2&collection.configName=collection1 What could be the reason that caused this error? This is the error which I am getting: Saturday, February 2, 2019 12:40:08 PM ERROR true OverseerCollectionMessageHandler Collection: calls operation: create failed:org.apache.solr.common.SolrException: Error getting replica locations : unable to get autoscaling policy session Collection: calls operation: create failed:org.apache.solr.common.SolrException: Error getting replica locations : unable to get autoscaling policy session at org.apache.solr.cloud.api.collections.CreateCollectionCmd.call(CreateCollectionCmd.java:183) at org.apache.solr.cloud.api.collections.OverseerCollectionMessageHandler.processMessage(OverseerCollectionMessageHandler.java:259) at org.apache.solr.cloud.OverseerTaskProcessor$Runner.run(OverseerTaskProcessor.java:478) at org.apache.solr.common.util.ExecutorUtil$MDCAwareThreadPoolExecutor.lambda$execute$0(ExecutorUtil.java:209) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Caused by: org.apache.solr.common.SolrException: unable to get autoscaling policy session at org.apache.solr.client.solrj.cloud.autoscaling.PolicyHelper.getReplicaLocations(PolicyHelper.java:123) at org.apache.solr.cloud.api.collections.Assign.getPositionsUsingPolicy(Assign.java:369) at org.apache.solr.cloud.api.collections.Assign$PolicyBasedAssignStrategy.assign(Assign.java:617) at org.apache.solr.cloud.api.collections.CreateCollectionCmd.buildReplicaPositions(CreateCollectionCmd.java:394) at org.apache.solr.cloud.api.collections.CreateCollectionCmd.call(CreateCollectionCmd.java:178) ... 6 more Caused by: org.apache.solr.common.SolrException: org.apache.solr.common.SolrException: at org.apache.solr.common.cloud.rule.ImplicitSnitch.getTags(ImplicitSnitch.java:78) at org.apache.solr.client.solrj.impl.SolrClientNodeStateProvider.fetchTagValues(SolrClientNodeStateProvider.java:138) at org.apache.solr.client.solrj.impl.SolrClientNodeStateProvider.getNodeValues(SolrClientNodeStateProvider.java:127) at org.apache.solr.client.solrj.cloud.autoscaling.Row.<init>(Row.java:66) at org.apache.solr.client.solrj.cloud.autoscaling.Policy$Session.<init>(Policy.java:566) at org.apache.solr.client.solrj.cloud.autoscaling.Policy.createSession(Policy.java:391) at org.apache.solr.client.solrj.cloud.autoscaling.Policy.createSession(Policy.java:353) at org.apache.solr.client.solrj.cloud.autoscaling.PolicyHelper$SessionRef.createSession(PolicyHelper.java:460) at org.apache.solr.client.solrj.cloud.autoscaling.PolicyHelper$SessionRef.get(PolicyHelper.java:425) at org.apache.solr.client.solrj.cloud.autoscaling.PolicyHelper.getSession(PolicyHelper.java:481) at org.apache.solr.client.solrj.cloud.autoscaling.PolicyHelper.getReplicaLocations(PolicyHelper.java:121) ... 10 more Caused by: org.apache.solr.common.SolrException: at org.apache.solr.client.solrj.impl.SolrClientNodeStateProvider$AutoScalingSnitch.getRemoteInfo(SolrClientNodeStateProvider.java:301) at org.apache.solr.common.cloud.rule.ImplicitSnitch.getTags(ImplicitSnitch.java:76) ... 20 more Caused by: org.apache.solr.client.solrj.SolrServerException: IOException occured when talking to server at: http://10.33.42.58:8983/edm at org.apache.solr.client.solrj.impl.HttpSolrClient.executeMethod(HttpSolrClient.java:657) at org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:255) at org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:244) at org.apache.solr.client.solrj.SolrClient.request(SolrClient.java:1260) at org.apache.solr.client.solrj.impl.SolrClientNodeStateProvider$ClientSnitchCtx.invoke(SolrClientNodeStateProvider.java:349) at org.apache.solr.client.solrj.impl.SolrClientNodeStateProvider$AutoScalingSnitch.getRemoteInfo(SolrClientNodeStateProvider.java:274) ... 21 more Caused by: org.apache.http.client.ClientProtocolException at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:187) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83) at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56) at org.apache.solr.client.solrj.impl.HttpSolrClient.executeMethod(HttpSolrClient.java:542) ... 26 more Caused by: org.apache.http.ProtocolException: The server failed to respond with a valid HTTP response at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:149) at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:56) at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:259) at org.apache.http.impl.DefaultBHttpClientConnection.receiveResponseHeader(DefaultBHttpClientConnection.java:163) at org.apache.http.impl.conn.CPoolProxy.receiveResponseHeader(CPoolProxy.java:165) at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:273) at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:125) at org.apache.solr.util.stats.InstrumentedHttpRequestExecutor.execute(InstrumentedHttpRequestExecutor.java:120) at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:272) at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:185) at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89) at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:111) at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185) ... 29 more Saturday, February 2, 2019 12:40:08 PM ERROR true HttpSolrCall null:org.apache.solr.common.SolrException: Error getting replica locations : unable to get autoscaling policy session null:org.apache.solr.common.SolrException: Error getting replica locations : unable to get autoscaling policy session at org.apache.solr.client.solrj.SolrResponse.getException(SolrResponse.java:53) at org.apache.solr.handler.admin.CollectionsHandler.invokeAction(CollectionsHandler.java:274) at org.apache.solr.handler.admin.CollectionsHandler.handleRequestBody(CollectionsHandler.java:246) at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:199) at org.apache.solr.servlet.HttpSolrCall.handleAdmin(HttpSolrCall.java:734) at org.apache.solr.servlet.HttpSolrCall.handleAdminRequest(HttpSolrCall.java:715) at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:496) at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:377) at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:323) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1634) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1317) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1219) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144) at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:219) at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) at org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) at org.eclipse.jetty.server.Server.handle(Server.java:531) at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:352) at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260) at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:281) at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:102) at org.eclipse.jetty.io.ssl.SslConnection.onFillable(SslConnection.java:291) at org.eclipse.jetty.io.ssl.SslConnection$3.succeeded(SslConnection.java:151) at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:102) at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126) at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:762) at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:680) at java.lang.Thread.run(Unknown Source) Regards, Edwin
