java.lang.IllegalStateException: state should be: open
	at com.mongodb.assertions.Assertions.isTrue(Assertions.java:70)
	at com.mongodb.connection.BaseCluster.selectServer(BaseCluster.java:82)
	at com.mongodb.binding.ClusterBinding$ClusterBindingConnectionSource.<init>(ClusterBinding.java:75)
	at com.mongodb.binding.ClusterBinding$ClusterBindingConnectionSource.<init>(ClusterBinding.java:71)
	at com.mongodb.binding.ClusterBinding.getReadConnectionSource(ClusterBinding.java:63)
	at com.mongodb.operation.CommandOperationHelper.executeWrappedCommandProtocol(CommandOperationHelper.java:90)
	at com.mongodb.operation.CommandOperationHelper.executeWrappedCommandProtocol(CommandOperationHelper.java:85)
	at com.mongodb.operation.CommandReadOperation.execute(CommandReadOperation.java:55)
	at com.mongodb.Mongo.execute(Mongo.java:836)
	at com.mongodb.Mongo$2.execute(Mongo.java:823)
	at com.mongodb.DB.executeCommand(DB.java:729)
	at com.mongodb.DB.command(DB.java:491)
	at com.mongodb.DB.command(DB.java:507)
	at com.mongodb.DB.command(DB.java:462)
	at org.springframework.data.mongodb.core.MongoTemplate$3.doInDB(MongoTemplate.java:410)
	at org.springframework.data.mongodb.core.MongoTemplate$3.doInDB(MongoTemplate.java:408)
	at org.springframework.data.mongodb.core.MongoTemplate.execute(MongoTemplate.java:466)
	at org.springframework.data.mongodb.core.MongoTemplate.executeCommand(MongoTemplate.java:408)
	at org.springframework.data.mongodb.core.MongoTemplate.aggregate(MongoTemplate.java:1576)
	at org.springframework.data.mongodb.core.MongoTemplate.aggregate(MongoTemplate.java:1511)
	at com.metlife.impactview.service.DBComputationImpl.getPOIStreamByReferenceId(DBComputationImpl.java:616)
	at com.metlife.impactview.service.MultiLevelAsyncServiceImpl.createJobLevelGraphForAllStreams(MultiLevelAsyncServiceImpl.java:188)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207)
	at com.sun.proxy.$Proxy119.createJobLevelGraphForAllStreams(Unknown Source)
	at com.metlife.impactview.service.TestService.tester(TestService.java:75)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.springframework.scheduling.support.ScheduledMethodRunnable.run(ScheduledMethodRunnable.java:65)
	at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)
	at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
	at java.util.concurrent.FutureTask.runAndReset(Unknown Source)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(Unknown Source)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)