我必须读取存储在另一台机器的HDFS中的数据,并且需要通过Spark访问才能读取。
如何做到这一点?完整的HDFS地址和端口似乎不起作用。
以前有人这么做过吗?
Py4JJavaError: An error occurred while calling o244.load.
: java.net.ConnectException: Call From Sandeeps-MacBook-Pro.local/192.168.50.188 to ec2-35-154-242-76.ap-south-1.compute.amazonaws.com:9000 failed on connection
尝试从swift的SecKeyCreateWithData函数生成SecKey,如下所示。SecKeyCreateWithData总是返回nil,错误日志如下。有谁能帮帮忙。 注意:作为CFData的cekKeyData和作为CFDictionary的属性都不是空的,并且都有值。 日志: Thread 1: Fatal error: Unexpectedly found nil while unwrapping an Optional value 代码 let keydatalen = 256
let algorithmID = ""
let part
正在尝试的第4节中指定的RSocket请求/响应。因此,会自动配置一个RSocketServer,并在端口7000上进行侦听。当从浏览器访问带有@GetMapping注释的方法时,无法连接到该方法
@RestController
public class MarketDataRestController {
private final RSocketRequester rSocketRequester;
public MarketDataRestController(RSocketRequester rSocketRequester) {
this.rSoc
Connected to the target VM, address: '127.0.0.1:57711', transport: 'socket'
log4j:WARN No appenders could be found for logger (org.apache.http.client.protocol.RequestAddCookies).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.