Question

我使用cassandra-cli -h localhost创建密钥空间。

我尝试了这个命令：create keyspace reddit with strategy_options = [{replication_factor:1}];而这一个：create keyspace reddit with strategy_options = {replication_factor:1};，但我得到的就是：

org.apache.thrift.transport.TTransportException

我在ArchLinux（由AUR构建）上尝试了Cassandra 1.1.6和1.2.2。（我用systemctl start cassandra运行Cassandra。）

此外，当我在创建键空间之前尝试use reddit; 时，它返回Keyspace 'reddit' not found.，但在尝试创建键空间后返回{{1} }}

编辑：忘记提及，但Login failure. Did you specify 'keyspace', 'username' and 'password'?效果很好，但是当我使用replication_factor创建键空间时，它会抛出异常。

Answer 1

使用此查询解决：

create keyspace reddit with placement_strategy = 'org.apache.cassandra.locator.SimpleStrategy' and strategy_options = [{replication_factor:1}];

我通过阅读/var/log/cassandra/system.log来到这里：

CustomTThreadPoolServer.java (line 217) Error occurred during processing of message.
java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
        at org.apache.cassandra.locator.AbstractReplicationStrategy.createReplicationStrategy(AbstractReplicationStrategy.java:230)
        at org.apache.cassandra.thrift.CassandraServer.system_add_keyspace(CassandraServer.java:1342)
        at org.apache.cassandra.thrift.Cassandra$Processor$system_add_keyspace.getResult(Cassandra.java:3960)
        at org.apache.cassandra.thrift.Cassandra$Processor$system_add_keyspace.getResult(Cassandra.java:3948)
        at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:32)
        at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:34)
        at org.apache.cassandra.thrift.CustomTThreadPoolServer$WorkerProcess.run(CustomTThreadPoolServer.java:199)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:722)
Caused by: java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
        at org.apache.cassandra.locator.AbstractReplicationStrategy.createReplicationStrategy(AbstractReplicationStrategy.java:226)
        ... 9 more
Caused by: org.apache.cassandra.exceptions.ConfigurationException: replication_factor is an option for SimpleStrategy, not NetworkTopologyStrategy
        at org.apache.cassandra.locator.NetworkTopologyStrategy.<init>(NetworkTopologyStrategy.java:66)
        ... 14 more

创建键空间时出现TTransportException

1 个答案: