我已经在我们的本地 Windows 机器上设置了 Apache Usergrid，但是在启动时，tomcat 在日志中显示错误。因此，我们也无法访问 usergrid 应用程序。以下是错误日志以供参考。谢谢！
connectionpool.impl.Slf4jConnectionPoolMonitorImpl.incOperationFailure(31)<RingDescribeAutoDiscovery>- BadRequestException: [host=127.0.0.1(127.0.0.1):9160, latency=2(2), attempts=1]InvalidRequestException(why:Keyspace 'Usergrid_Applications' does not exist)
2015-11-29 12:45:04 ERROR cassandra.io.AbstractSearch.getQueueBounds(272)<JobSchedulerService RUNNING>- Error getting oldest queue message ID
me.prettyprint.hector.api.exceptions.HInvalidRequestException: InvalidRequestException(why:Keyspace 'Usergrid_Applications' does not exist)
at me.prettyprint.cassandra.connection.client.HThriftClient.getCassandra(HThriftClient.java:112)
at me.prettyprint.cassandra.connection.HConnectionManager.operateWithFailover(HConnectionManager.java:251)
at me.prettyprint.cassandra.service.KeyspaceServiceImpl.operateWithFailover(KeyspaceServiceImpl.java:132)
at me.prettyprint.cassandra.service.KeyspaceServiceImpl.getSlice(KeyspaceServiceImpl.java:290)
at me.prettyprint.cassandra.service.VirtualKeyspaceServiceImpl.getSlice(VirtualKeyspaceServiceImpl.java:133)
at me.prettyprint.cassandra.model.thrift.ThriftSliceQuery$1.doInKeyspace(ThriftSliceQuery.java:53)
at me.prettyprint.cassandra.model.thrift.ThriftSliceQuery$1.doInKeyspace(ThriftSliceQuery.java:49)
at me.prettyprint.cassandra.model.KeyspaceOperationCallback.doInKeyspaceAndMeasure(KeyspaceOperationCallback.java:20)
at me.prettyprint.cassandra.model.ExecutingVirtualKeyspace.doExecute(ExecutingVirtualKeyspace.java:53)
at me.prettyprint.cassandra.model.thrift.ThriftSliceQuery.execute(ThriftSliceQuery.java:48)
at org.apache.usergrid.mq.cassandra.io.AbstractSearch.getQueueBounds(AbstractSearch.java:263)
at org.apache.usergrid.mq.cassandra.io.ConsumerTransaction.getResults(ConsumerTransaction.java:213)
at org.apache.usergrid.mq.cassandra.QueueManagerImpl.getFromQueue(QueueManagerImpl.java:412)
at org.apache.usergrid.batch.service.SchedulerServiceImpl.getJobs(SchedulerServiceImpl.java:168)
at org.apache.usergrid.batch.service.JobSchedulerService.runOneIteration(JobSchedulerService.java:118)
at com.google.common.util.concurrent.AbstractScheduledService$1$1.run(AbstractScheduledService.java:174)
at com.google.common.util.concurrent.Callables$3.run(Callables.java:95)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: InvalidRequestException(why:Keyspace 'Usergrid_Applications' does not exist)
at org.apache.cassandra.thrift.Cassandra$set_keyspace_result.read(Cassandra.java:5540)
at org.apache.thrift.TServiceClient.receiveBase(TServiceClient.java:78)
at org.apache.cassandra.thrift.Cassandra$Client.recv_set_keyspace(Cassandra.java:540)
at org.apache.cassandra.thrift.Cassandra$Client.set_keyspace(Cassandra.java:527)
at me.prettyprint.cassandra.connection.client.HThriftClient.getCassandra(HThriftClient.java:110)
... 23 more