Hive

3款万库连接的工具

由 馋奶兔 提交于 2020-07-26 03:24:13
背景 随着开发项目的积累，发现我们简直要用到各种各样的数据库，因而需要各种各样的工具类软件来进行连接，但这样总是感觉不太舒服，有没有工具可以连接所有数据库呢？ 下面介绍三种，供参考。 Navicat 这款软件很早就有接触，安装的时候要选择合适的版本进行安装，有的版本还是只能连接MySQL，需要引起注意。 官网 https://www.navicat.com.cn/ Navicat Premium 是一套数据库开发工具，让你从单一应用程序中同时连接 MySQL、MariaDB、MongoDB、SQL Server、Oracle、PostgreSQL 和 SQLite 数据库。它与 Amazon RDS、Amazon Aurora、Amazon Redshift、Microsoft Azure、Oracle Cloud、MongoDB Atlas、阿里云、腾讯云和华为云等云数据库兼容。你可以快速轻松地创建、管理和维护数据库。 可以发现该数据库可以同时连接7种数据库。支持对非关系型数据库MonogoDB的连接。 DBeaver 官网 https://dbeaver.io/ Free multi-platform database tool for developers, database administrators, analysts and all people who need

CentOS7安装CDH 第五章：CDH的安装和部署-CDH5.7.0

由 邮差的信 提交于 2020-07-25 19:11:59
相关文章链接 CentOS7安装CDH 第一章：CentOS7系统安装 CentOS7安装CDH 第二章：CentOS7各个软件安装和启动 CentOS7安装CDH 第三章：CDH中的问题和解决方法 CentOS7安装CDH 第四章：CDH的版本选择和安装方式 CentOS7安装CDH 第五章：CDH的安装和部署-CDH5.7.0 CentOS7安装CDH 第六章：CDH的管理-CDH5.12 CentOS7安装CDH 第七章：CDH集群Hadoop的HA配置 CentOS7安装CDH 第八章：CDH中对服务和机器的添加与删除操作 CentOS7安装CDH 第九章：CDH中安装Kafka CentOS7安装CDH 第十章：CDH中安装Spark2 CentOS7安装CDH 第十一章：离线升级CDH版本 CentOS7安装CDH 第十二章：YARN的资源调优 CentOS7安装CDH 第十三章：CDH资源池配置 CentOS7安装CDH 第十四章：CDH的优化 1. CDH的下载 以 CentOS7.5 和 CDH5.7.0 举例： 1.1. cm的tar包下载 下载地址： http://archive.cloudera.com/cm5/repo-as-tarball/5.7.0/ 请选择需要的版本。 1.2. parcels包下载 下载地址： http://archive

测试需要掌握哪些技能

由 |▌冷眼眸甩不掉的悲伤 提交于 2020-07-24 07:51:51
把自己工作中接触到的和非接触的到的知识罗列一下。 开发能力：JAVA（集合，泛型，基础知识，调试，代码阅读），JavaScript/CSS/HTML（基础知识，能结合知识实现项目），Python（基础知识）； 框架：Spring Boot，Spring MVC；Vuejs； 开发成果：可以单独开发JAVAWEB后台系统，前端项目；管理系统； 兴趣爱好：机器学习（理解常用的机器学习知识与算法原理，以及简单机器学习实现）； 计算机网络知识：TCP/IP协议（HTTP，DNS）； 操作系统：LINUX服务器常用指令，服务器硬件指标分析，shell编程基础； 中间件：TOMCAT，NGINX（负载均衡，结合keepalive高可用架构），Mycat（分表分库），Redis，Zookeeper； 数据库：Oracle/MySQL，复杂查询； 测试工具：JMeter，Postman等；版本管理：GIT,SVN； 调度工具：JENKINS(理解)； 大数据：Hadoop（理解架构），Hive； 以上知识，都是工作中接触到的并且运用到的，当然测试工作中有些可能不需要精通掌握，只仅限于“使用”。 那么，信盈达的软件测试课程都学哪些内容？又有何优势？ 信盈达测试课程5大模块 信盈达软件测试课程分为五大课程模块，分别是功能测试、软件测试综合技术、QTP/UFT 自动化测试、LoadRunner

Unable to Create Table in Amazon Athena

由 吃可爱长大的小学妹 提交于 2020-07-23 10:19:18
问题 I tried creating a table in Athena for my nested json files in s3, but receiving an error: line 1:8: no viable alternative at input 'create external' (service: amazonathena; status code: 400; error code: invalidrequestexception; request id: dcea57c7-b801-41a4-8edb-e42eb1608fea) Table name and fields seem okay, also have attached sample json from my s3 source. Have referred the official documentation of Athena. Also, let me know if and how can I add nested fields from Create Table wizard in

Unable to Create Table in Amazon Athena

由 久未见 提交于 2020-07-23 10:19:11
问题 I tried creating a table in Athena for my nested json files in s3, but receiving an error: line 1:8: no viable alternative at input 'create external' (service: amazonathena; status code: 400; error code: invalidrequestexception; request id: dcea57c7-b801-41a4-8edb-e42eb1608fea) Table name and fields seem okay, also have attached sample json from my s3 source. Have referred the official documentation of Athena. Also, let me know if and how can I add nested fields from Create Table wizard in

Unable to Create Table in Amazon Athena

由 痴心易碎 提交于 2020-07-23 10:18:50
问题 I tried creating a table in Athena for my nested json files in s3, but receiving an error: line 1:8: no viable alternative at input 'create external' (service: amazonathena; status code: 400; error code: invalidrequestexception; request id: dcea57c7-b801-41a4-8edb-e42eb1608fea) Table name and fields seem okay, also have attached sample json from my s3 source. Have referred the official documentation of Athena. Also, let me know if and how can I add nested fields from Create Table wizard in

i got this error when i tried to access Hive database in flutter The box “contacts” is already open and of type Box<Contact>

由 懵懂的女人 提交于 2020-07-21 07:51:40
问题 I initialized box database in main as follow void main() async { WidgetsFlutterBinding.ensureInitialized(); final appDocumentDirectory = await path_provider.getApplicationDocumentsDirectory(); Hive.init(appDocumentDirectory.path); Hive.registerAdapter(ContactAdapter()); runApp(MyApp()); } then I open box in the material app by using FutureBuilder plugin as follow FutureBuilder( future: Hive.openBox<Contact>('contacts'), builder: (context, snapshot) { if(snapshot.connectionState ==

Adding partitions to the external table in hive takes a lot of time

由 倾然丶 夕夏残阳落幕 提交于 2020-07-21 07:25:05
问题 I would like to know what is the best possible way(s) of adding partitions to the external table. I have a external table on S3 in hive with the partition as vehicle=/date=/hr= Now new vehicle can be added at any time of day and there will be vehicles which will not have data for a couple of hours in a day or for couple of days. Few possible solutions - msck reapir table : It takes a lot of time - Add partition via script : I may not know when new vehicle gets created or which hour data is

Adding partitions to the external table in hive takes a lot of time

由 半腔热情 提交于 2020-07-21 07:24:31
问题 I would like to know what is the best possible way(s) of adding partitions to the external table. I have a external table on S3 in hive with the partition as vehicle=/date=/hr= Now new vehicle can be added at any time of day and there will be vehicles which will not have data for a couple of hours in a day or for couple of days. Few possible solutions - msck reapir table : It takes a lot of time - Add partition via script : I may not know when new vehicle gets created or which hour data is

Hive timestamp format

由 走远了吗. 提交于 2020-07-19 11:07:44
问题 I have some data with the following format: 28/04/2017 00:00:00|20550|22/05/2017 00:00:00| I am setting | as a separator. For the data in the first and third row in this example, I put timestamp as a data type in HUE, but I get null s as answer. I have looked around and it seems to me like Hive supports Unix format timestamp (from places like this ) But, I get a "Invalid date" message (I'm doing it with HUE so far, I'm still new with this technologies). If I try to make this data String, I
订阅 Hive