also, did you re create the cluster after upgrading to a newer version? I believe there were some changes made to the clusterstate.json recently that are not backwards compatible.
-- Sami Siren On Wed, Sep 19, 2012 at 6:21 PM, Sami Siren <ssi...@gmail.com> wrote: > Hi, > > I am having troubles understanding the reason for that NPE. > > First you could try removing the line #102 in HttpClientUtility so > that logging does not prevent creation of the http client in > SyncStrategy. > > -- > Sami Siren > > On Wed, Sep 19, 2012 at 5:29 PM, Markus Jelsma > <markus.jel...@openindex.io> wrote: >> Hi, >> >> Since the 2012-09-17 11:10:41 build shards start to have trouble coming back >> online. When i restart one node the slices on the other nodes are throwing >> exceptions and cannot be queried. I'm not sure how to remedy the problem but >> stopping a node or restarting it a few times seems to help it. The problem >> is when i restart a node, and it happens, i must not restart another node >> because that may trigger other slices becoming unavailable. >> >> Here are some parts of the log: >> >> 2012-09-19 14:13:18,149 ERROR [solr.cloud.RecoveryStrategy] - >> [RecoveryThread] - : Recovery failed - trying again... core=oi_i >> 2012-09-19 14:13:25,818 WARN [solr.cloud.RecoveryStrategy] - >> [main-EventThread] - : Stopping recovery for >> zkNodeName=nl10.host:8080_solr_oi_icore=oi_i >> 2012-09-19 14:13:44,497 WARN [solr.cloud.RecoveryStrategy] - [Thread-4] - : >> Stopping recovery for zkNodeName=nl10.host:8080_solr_oi_jcore=oi_j >> 2012-09-19 14:14:00,321 ERROR [solr.cloud.RecoveryStrategy] - >> [RecoveryThread] - : Error while trying to recover. >> core=oi_i:org.apache.solr.common.SolrException: We are not the leader >> at >> org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:402) >> at >> org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:182) >> at >> org.apache.solr.cloud.RecoveryStrategy.sendPrepRecoveryCmd(RecoveryStrategy.java:199) >> at >> org.apache.solr.cloud.RecoveryStrategy.doRecovery(RecoveryStrategy.java:388) >> at >> org.apache.solr.cloud.RecoveryStrategy.run(RecoveryStrategy.java:220) >> >> 2012-09-19 14:14:00,321 ERROR [solr.cloud.RecoveryStrategy] - >> [RecoveryThread] - : Recovery failed - trying again... core=oi_i >> 2012-09-19 14:14:00,321 ERROR [solr.cloud.RecoveryStrategy] - >> [RecoveryThread] - : Recovery failed - max retries exceeded. core=oi_i >> 2012-09-19 14:14:00,321 ERROR [solr.cloud.RecoveryStrategy] - >> [RecoveryThread] - : Recovery failed - I give up. core=oi_i >> 2012-09-19 14:14:00,333 WARN [solr.cloud.RecoveryStrategy] - >> [RecoveryThread] - : Stopping recovery for >> zkNodeName=nl10.host:8080_solr_oi_icore=oi_i >> ERROR [solr.cloud.SyncStrategy] - [main-EventThread] - : Sync request >> error: java.lang.NullPointerException >> ERROR [solr.cloud.SyncStrategy] - [main-EventThread] - : >> http://nl10.host:8080/solr/oi_i/: Could not tell a replica to >> recover:java.lang.NullPointerException >> at >> org.slf4j.impl.Log4jLoggerAdapter.info(Log4jLoggerAdapter.java:305) >> at >> org.apache.solr.client.solrj.impl.HttpClientUtil.createClient(HttpClientUtil.java:102) >> at >> org.apache.solr.client.solrj.impl.HttpSolrServer.<init>(HttpSolrServer.java:155) >> at >> org.apache.solr.client.solrj.impl.HttpSolrServer.<init>(HttpSolrServer.java:128) >> at org.apache.solr.cloud.SyncStrategy$1.run(SyncStrategy.java:262) >> at >> org.apache.solr.cloud.SyncStrategy.requestRecovery(SyncStrategy.java:272) >> at org.apache.solr.cloud.SyncStrategy.syncToMe(SyncStrategy.java:203) >> at >> org.apache.solr.cloud.SyncStrategy.syncReplicas(SyncStrategy.java:125) >> at org.apache.solr.cloud.SyncStrategy.sync(SyncStrategy.java:87) >> at >> org.apache.solr.cloud.ShardLeaderElectionContext.runLeaderProcess(ElectionContext.java:169) >> at >> org.apache.solr.cloud.LeaderElector.runIamLeaderProcess(LeaderElector.java:158) >> at >> org.apache.solr.cloud.LeaderElector.checkIfIamLeader(LeaderElector.java:102) >> at >> org.apache.solr.cloud.LeaderElector.joinElection(LeaderElector.java:275) >> at >> org.apache.solr.cloud.ShardLeaderElectionContext.rejoinLeaderElection(ElectionContext.java:326) >> at >> org.apache.solr.cloud.ShardLeaderElectionContext.runLeaderProcess(ElectionContext.java:159) >> at >> org.apache.solr.cloud.LeaderElector.runIamLeaderProcess(LeaderElector.java:158) >> at >> org.apache.solr.cloud.LeaderElector.checkIfIamLeader(LeaderElector.java:102) >> at >> org.apache.solr.cloud.LeaderElector.access$000(LeaderElector.java:56) >> at >> org.apache.solr.cloud.LeaderElector$1.process(LeaderElector.java:131) >> at >> org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:526) >> at >> org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:502) >> >> ERROR [apache.zookeeper.ClientCnxn] - [main-EventThread] - : Error while >> calling watcher >> java.lang.NullPointerException >> at >> org.apache.solr.cloud.LeaderElector$1.process(LeaderElector.java:139) >> at >> org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:526) >> at >> org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:502) >> ERROR [apache.zookeeper.ClientCnxn] - [main-EventThread] - : Error while >> calling watcher >> java.lang.NullPointerException >> at >> org.apache.solr.common.cloud.ZkStateReader$3.process(ZkStateReader.java:238) >> at >> org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:526) >> at >> org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:502) >> ERROR [apache.zookeeper.ClientCnxn] - [main-EventThread] - : Error while >> calling watcher >> java.lang.NullPointerException >> at >> org.apache.solr.common.cloud.ZkStateReader$2.process(ZkStateReader.java:189) >> at >> org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:526) >> at >> org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:502) >> 2012-09-19 14:14:05,304 WARN [solr.core.CoreContainer] - [main] - : Log >> watching is not yet implemented for log4j >> 2012-09-19 14:14:08,504 WARN [solr.core.SolrCore] - [main] - : New index >> directory detected: old=null >> new=/opt/solr/cores/oi_j/data/index.20120823134824608 >> 2012-09-19 14:14:10,895 WARN [solr.core.SolrCore] - [main] - : New index >> directory detected: old=null new=/opt/solr/cores/oi_i/data/index/ >> 2012-09-19 14:14:41,203 ERROR [solr.cloud.ZkController] - [main] - : Error >> getting leader from zk >> org.apache.solr.common.SolrException: Could not get leader props >> at >> org.apache.solr.cloud.ZkController.getLeaderProps(ZkController.java:762) >> at >> org.apache.solr.cloud.ZkController.getLeaderProps(ZkController.java:722) >> at >> org.apache.solr.cloud.ZkController.getLeader(ZkController.java:687) >> at org.apache.solr.cloud.ZkController.register(ZkController.java:626) >> at org.apache.solr.cloud.ZkController.register(ZkController.java:576) >> at >> org.apache.solr.core.CoreContainer.registerInZk(CoreContainer.java:721) >> at >> org.apache.solr.core.CoreContainer.register(CoreContainer.java:705) >> at org.apache.solr.core.CoreContainer.load(CoreContainer.java:547) >> at org.apache.solr.core.CoreContainer.load(CoreContainer.java:365) >> at >> org.apache.solr.core.CoreContainer$Initializer.initialize(CoreContainer.java:314) >> at >> org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:107) >> at >> org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:295) >> at >> org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:422) >> at >> org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:115) >> at >> org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4072) >> at >> org.apache.catalina.core.StandardContext.start(StandardContext.java:4726) >> at >> org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799) >> at >> org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779) >> at >> org.apache.catalina.core.StandardHost.addChild(StandardHost.java:601) >> at >> org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:675) >> at >> org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:601) >> at >> org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:502) >> at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1317) >> at >> org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:324) >> at >> org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142) >> at >> org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1065) >> at org.apache.catalina.core.StandardHost.start(StandardHost.java:840) >> at >> org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057) >> at >> org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463) >> at >> org.apache.catalina.core.StandardService.start(StandardService.java:525) >> at >> org.apache.catalina.core.StandardServer.start(StandardServer.java:754) >> at org.apache.catalina.startup.Catalina.start(Catalina.java:595) >> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >> at >> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) >> at >> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) >> at java.lang.reflect.Method.invoke(Method.java:616) >> at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289) >> at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414) >> Caused by: org.apache.zookeeper.KeeperException$NoNodeException: >> KeeperErrorCode = NoNode for /collections/oi/leaders/shard9 >> at >> org.apache.zookeeper.KeeperException.create(KeeperException.java:102) >> at >> org.apache.zookeeper.KeeperException.create(KeeperException.java:42) >> at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:927) >> at >> org.apache.solr.common.cloud.SolrZkClient$7.execute(SolrZkClient.java:301) >> at >> org.apache.solr.common.cloud.SolrZkClient$7.execute(SolrZkClient.java:298) >> at >> org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:67) >> at >> org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:298) >> at >> org.apache.solr.cloud.ZkController.getLeaderProps(ZkController.java:740) >> ... 37 more >> 2012-09-19 14:14:41,239 ERROR [solr.core.CoreContainer] - [main] - : >> :org.apache.solr.common.SolrException: Error getting leader from zk >> at >> org.apache.solr.cloud.ZkController.getLeader(ZkController.java:711) >> at org.apache.solr.cloud.ZkController.register(ZkController.java:626) >> at org.apache.solr.cloud.ZkController.register(ZkController.java:576) >> at >> org.apache.solr.core.CoreContainer.registerInZk(CoreContainer.java:721) >> at >> org.apache.solr.core.CoreContainer.register(CoreContainer.java:705) >> at org.apache.solr.core.CoreContainer.load(CoreContainer.java:547) >> at org.apache.solr.core.CoreContainer.load(CoreContainer.java:365) >> at >> org.apache.solr.core.CoreContainer$Initializer.initialize(CoreContainer.java:314) >> at >> org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:107) >> at >> org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:295) >> at >> org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:422) >> at >> org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:115) >> at >> org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4072) >> at >> org.apache.catalina.core.StandardContext.start(StandardContext.java:4726) >> at >> org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799) >> at >> org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779) >> at >> org.apache.catalina.core.StandardHost.addChild(StandardHost.java:601) >> at >> org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:675) >> at >> org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:601) >> at >> org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:502) >> at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1317) >> at >> org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:324) >> at >> org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142) >> at >> org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1065) >> at org.apache.catalina.core.StandardHost.start(StandardHost.java:840) >> at >> org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057) >> at >> org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463) >> at >> org.apache.catalina.core.StandardService.start(StandardService.java:525) >> at >> org.apache.catalina.core.StandardServer.start(StandardServer.java:754) >> at org.apache.catalina.startup.Catalina.start(Catalina.java:595) >> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >> at >> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) >> at >> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) >> at java.lang.reflect.Method.invoke(Method.java:616) >> at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289) >> at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414) >> Caused by: org.apache.solr.common.SolrException: Could not get leader props >> at >> org.apache.solr.cloud.ZkController.getLeaderProps(ZkController.java:762) >> at >> org.apache.solr.cloud.ZkController.getLeaderProps(ZkController.java:722) >> at >> org.apache.solr.cloud.ZkController.getLeader(ZkController.java:687) >> ... 35 more >> Caused by: org.apache.zookeeper.KeeperException$NoNodeException: >> KeeperErrorCode = NoNode for /collections/oi/leaders/shard9 >> at >> org.apache.zookeeper.KeeperException.create(KeeperException.java:102) >> at >> org.apache.zookeeper.KeeperException.create(KeeperException.java:42) >> at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:927) >> at >> org.apache.solr.common.cloud.SolrZkClient$7.execute(SolrZkClient.java:301) >> at >> org.apache.solr.common.cloud.SolrZkClient$7.execute(SolrZkClient.java:298) >> at >> org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:67) >> at >> org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:298) >> at >> org.apache.solr.cloud.ZkController.getLeaderProps(ZkController.java:740) >> ... 37 more >> 2012-09-19 14:14:41,239 ERROR [solr.core.CoreContainer] - [main] - : >> null:org.apache.solr.common.cloud.ZooKeeperException: >> at >> org.apache.solr.core.CoreContainer.registerInZk(CoreContainer.java:744) >> at >> org.apache.solr.core.CoreContainer.register(CoreContainer.java:705) >> at org.apache.solr.core.CoreContainer.load(CoreContainer.java:547) >> at org.apache.solr.core.CoreContainer.load(CoreContainer.java:365) >> at >> org.apache.solr.core.CoreContainer$Initializer.initialize(CoreContainer.java:314) >> at >> org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:107) >> at >> org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:295) >> at >> org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:422) >> at >> org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:115) >> at >> org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4072) >> at >> org.apache.catalina.core.StandardContext.start(StandardContext.java:4726) >> at >> org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799) >> at >> org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779) >> at >> org.apache.catalina.core.StandardHost.addChild(StandardHost.java:601) >> at >> org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:675) >> at >> org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:601) >> at >> org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:502) >> at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1317) >> at >> org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:324) >> at >> org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142) >> at >> org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1065) >> at org.apache.catalina.core.StandardHost.start(StandardHost.java:840) >> at >> org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1057) >> at >> org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463) >> at >> org.apache.catalina.core.StandardService.start(StandardService.java:525) >> at >> org.apache.catalina.core.StandardServer.start(StandardServer.java:754) >> at org.apache.catalina.startup.Catalina.start(Catalina.java:595) >> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >> at >> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) >> at >> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) >> at java.lang.reflect.Method.invoke(Method.java:616) >> at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289) >> at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414) >> Caused by: org.apache.solr.common.SolrException: Error getting leader from zk >> at >> org.apache.solr.cloud.ZkController.getLeader(ZkController.java:711) >> at org.apache.solr.cloud.ZkController.register(ZkController.java:626) >> at org.apache.solr.cloud.ZkController.register(ZkController.java:576) >> at >> org.apache.solr.core.CoreContainer.registerInZk(CoreContainer.java:721) >> ... 32 more >> Caused by: org.apache.solr.common.SolrException: Could not get leader props >> at >> org.apache.solr.cloud.ZkController.getLeaderProps(ZkController.java:762) >> at >> org.apache.solr.cloud.ZkController.getLeaderProps(ZkController.java:722) >> at >> org.apache.solr.cloud.ZkController.getLeader(ZkController.java:687) >> ... 35 more >> Caused by: org.apache.zookeeper.KeeperException$NoNodeException: >> KeeperErrorCode = NoNode for /collections/oi/leaders/shard9 >> at >> org.apache.zookeeper.KeeperException.create(KeeperException.java:102) >> at >> org.apache.zookeeper.KeeperException.create(KeeperException.java:42) >> at org.apache.zookeeper.ZooKeeper.getData(ZooKeeper.java:927) >> at >> org.apache.solr.common.cloud.SolrZkClient$7.execute(SolrZkClient.java:301) >> at >> org.apache.solr.common.cloud.SolrZkClient$7.execute(SolrZkClient.java:298) >> at >> org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:67) >> at >> org.apache.solr.common.cloud.SolrZkClient.getData(SolrZkClient.java:298) >> at >> org.apache.solr.cloud.ZkController.getLeaderProps(ZkController.java:740) >> ... 37 more >> >> This does not happen with an older build of september 11th. >> >> Thanks, >> Markus
