【Flume -- Transfer one type of source to another type】的更多相关文章

Flume -- Transfer one type of source to another type

Source within Flume is a kind of Server for outside client. Sink within Flume is a kind of client for ourside server such as HDFS, MongoDB, Kafka. Component Interface Type Alias Implementation Class org.apache.flume.Channel memory org.apache.flume.ch…

Failed to register: Error: fabric-ca request register failed with errors [[{"code":0,"message":"No identity type provided. Please provide identity type"}]]解决方案

I try to run sample application as stated here : http://hyperledger-fabric.readthedocs.io/en/release/write_first_app.html Everything looks good until I ran this command : node registerUser Error : Store path:/Users/johndoe/Desktop/myProject/fabric-sa…

The conversion of a varchar data type to a datetime data type resulted in an out-of-range value

刚刚有在程序中,传递一个空值至MS SQL Server数据库,这个值的数据类型为DATETIME执行时,它却发生了如标题提示的异常:The conversion of a varchar data type to a datetime data type resulted in an out-of-range value. 跟踪一下,当遇上一个空值时,它并没有真正是给一个空值给数据库,而是Datetime的最小值"1/1/0001 12:00:00 AM" 在两个文本框都是空值时,跟…

【spring boot】spring boot 前台GET请求，传递时间类型的字符串，后台无法解析，报错：Failed to convert from type [java.lang.String] to type [java.util.Date]

spring boot 前台GET请求,传递时间类型的字符串,后台无法解析,报错:Failed to convert from type [java.lang.String] to type [java.util.Date] 而POST请求,传入时间类型字符串,后台是可以解析成Date类型的. 出现这个错误,在需要接受Date类型的字符串参数的controller层中,加入: @InitBinder public void initBinder(WebDataBinder binder) { S…

解决Type safety: The expression of type List needs

解决Type safety: The expression of type List needs unchecked conversion to conform to 在方法前加上这句话就可以了@SuppressWarnings("unchecked") 例如: @SuppressWarnings("unchecked") public List<TMrTraceLog> findMrTraceLog(String mrClass,String mrNo…

No converter found capable of converting from type [java.lang.String] to type [java.util.Map<java.lang.String, org.springframework.boot.logging.LogLevel>]

java.lang.IllegalStateException: Failed to load ApplicationContext at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:132) at org.springframework.test.context.suppo…

报错The "chunk" argument must be one of type string or Buffer. Received type object

报错内容: TypeError [ERR_INVALID_ARG_TYPE]: The "chunk" argument must be one of type string or Buffer. Received type object at ServerResponse.end (_http_outgoing.js:690:13) 原因: response.end()方法接收的参数类型只能是字符串或Buffer, 传入的是object 解决: 找到代码出错行,重写end方法,如:r…

No converter found capable of converting from type [java.lang.String] to type [java.util.Map<java.lang.String, java.lang.String>]

java.lang.IllegalStateException: Failed to load ApplicationContext at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:125) at org.springframework.test.context.suppo…

Jpa自定义查询报错(Failed to convert from type [java.lang.Object[]] to type)

Jpa自定义查询报错 问题背景 今天遇到一个奇怪的报错"Failed to convert from type [java.lang.Object[]] to type",这个报错,百度上也是很少的,恰恰是这样的问题,引起我了解决的欲望.先看看报错: org.springframework.core.convert.ConversionFailedException: Failed to convert from type [java.lang.Object[]] to type [o…

一种封装Retrofit的方法，可以自动解析Gson，回避Method return type must not include a type variable or wildcard: retrofit2.Call<T>的问题

封装目的:屏蔽底层实现,提供统一接口,并支持Gson自动转化 最初封装: //请求方法 interface RequestListener { interface PostListener { @POST fun <T>call(@Url url: String, @Body t:Any) : Call<T> } } //封装请求 class NetUtils private constructor(retrofit: Retrofit){ private val mRetrofi…