cassandra - 在 Centos 6.7 上运行 cassandra-stress 时出错

Question

我正在尝试在 Centos 6.7 上构建一个 3 节点 Cassandra 集群。我安装它没有问题，我可以成功运行 cqlshell 命令。但是，每当我尝试将压力测试作为非常简单的测试用例运行时:

cassandra-stress write n=10

我收到这个错误

java.lang.RuntimeException: com.datastax.driver.core.exceptions.NoHostAvailableException: All host(s) tried for query failed (tried: localhost/127.0.0.1:9042 (com.datastax.driver.core.exceptions.TransportException: [localhost/127.0.0.1] Cannot connect))
        at org.apache.cassandra.stress.settings.StressSettings.getJavaDriverClient(StressSettings.java:222)
        at org.apache.cassandra.stress.settings.SettingsSchema.createKeySpacesNative(SettingsSchema.java:79)
        at org.apache.cassandra.stress.settings.SettingsSchema.createKeySpaces(SettingsSchema.java:69)
        at org.apache.cassandra.stress.settings.StressSettings.maybeCreateKeyspaces(StressSettings.java:230)
        at org.apache.cassandra.stress.StressAction.run(StressAction.java:54)
        at org.apache.cassandra.stress.Stress.run(Stress.java:133)
        at org.apache.cassandra.stress.Stress.main(Stress.java:61)
Caused by: com.datastax.driver.core.exceptions.NoHostAvailableException: All host(s) tried for query failed (tried: localhost/127.0.0.1:9042 (com.datastax.driver.core.exceptions.TransportException: [localhost/127.0.0.1] Cannot connect))
        at com.datastax.driver.core.ControlConnection.reconnectInternal(ControlConnection.java:231)
        at com.datastax.driver.core.ControlConnection.connect(ControlConnection.java:77)
        at com.datastax.driver.core.Cluster$Manager.init(Cluster.java:1414)
        at com.datastax.driver.core.Cluster.getMetadata(Cluster.java:393)
        at org.apache.cassandra.stress.util.JavaDriverClient.connect(JavaDriverClient.java:154)
        at org.apache.cassandra.stress.settings.StressSettings.getJavaDriverClient(StressSettings.java:213)
        ... 6 more

种子、listen_address 和 rpc_address 都有正确的地址，我在防火墙中打开了 9042、7000、7001 和 7199 端口。所以我不完全确定可能是什么问题。

Answer 1

运行 nodetool status
取其中一个打印的 IP 地址并尝试:cassandra-stress write n=10 -node <ip address>