【发布时间】：2016-10-24 18:02:30
【问题描述】：
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
我收到此错误
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。
【问题讨论】：
-
nodetool 状态返回什么？ Cassandra-stress 正在查看您的本地主机。
标签： cassandra centos datastax centos6