Question

我试图通过命令访问远程cassendra数据库：

command: cqlsh 
error:
Connection error: 
    ('Unable to connect to any servers', 
        {'127.0.0.1': error(111, 
        "Tried connecting to [('127.0.0.1', 9042)]. Last error: Connection refused")}
    )

当我尝试访问localhost时，我收到错误：

Array#filter

Answer 1

您需要检查Cassandra是否可以通过给定的IP＆amp;您在命令行中指定的端口。如果您没有更改默认端口，则可以使用import PackageDescription let package = Package( name: "SwiftBackend", products: [ .library(name: "PerfectMongoDB", targets: ["PerfectMongoDB"]) ], dependencies: [ // Dependencies declare other packages that this package depends on. .package(url: "https://github.com/PerfectlySoft/Perfect-HTTPServer.git", from: "3.0.0"), .package(url: "https://github.com/PerfectSideRepos/Perfect-CMongo.git", from: "0.0.0"), .package(url: "https://github.com/PerfectSideRepos/Perfect-CBSON.git", from: "0.0.0"), .package(url: "https://github.com/PerfectlySoft/PerfectLib.git", from: "3.0.0") ], targets: [ .target( name: "SwiftBackend", dependencies: ["PerfectHTTPServer" , "PerfectLib" , "PerfectMongoDB"]), ] )。如果它不起作用，请检查您是否没有允许在给定IP上允许流量到端口9042的防火墙。

访问远程cassandra数据库

1 个答案: