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Stage-Stage-1: HDFS Read: 0 HDFS Write: 0 FAIL

I install hive with tutorial: And some other. I create database, table, load data is succes but another is error with map/ reduce task hive> create database mydb; enter code here OK Time taken: 0.366 seconds hive> CREATE TA . . .阅读更多

React Native: No dimension set for key window in production

I'm getting this error RCTFatalException: Unhandled JS Exception: No dimension set for key windowmh_execute_header Unhandled JS Exception: No dimension set for key window, stack: value@75:505 in production. I believe that it's an issue with RN: . . .阅读更多

Python Beautifulsoup (bs4) findAll not finding all elements

From the url that is in the code, I am ultimately trying to gather all of the players names from the page. However, when I am using .findAll in order to get all of the list elements, I am yet to be successful. Please advise. from urllib.request import urlopen as uReq from bs4 import Be . . .阅读更多

enable cookies in Phantomjs + selenium

I want to login in amazons3 (with the url:'') on my armv7 board.I used phantom2.0.1 from here and selenium2.45.0. I can open the website successfully, but when I doing 'submit' after filling the username and password, the webs . . .阅读更多

Extract phrases in bash (using sed)

I'm trying to extract some fragments of JSON document using regular expressions in bash. My goal is to catch every instance of this phrase and save them in new file. I thought that sed is good tool for such tasks. I've tried sth like this: sed '"temp":[0-9]+\.[0-9]*' weather.txt >> new . . .阅读更多

Typescript: Remove entries from tuple type

not sure if this is possible, but I would like to be able to define a type that converts tuples like: [number, string, undefined, number] to [number, string, number] (ie filter out undefined). I thought about something like this: type FilterUndefined<T extends any[]> = { [i in keyo . . .阅读更多

(C) When/where are local arrays allocated? describes automatic allocation of local variables. I understand that local variables are commonly allocated on the stack. I can imagine how an int might be allocated on the stack; just push its value. But h . . .阅读更多

Azure Bot project with client and server in same web app

I've made an Azure bot application using the BotFramework v4 and used the WebChat control as an interface. I noticed that the bot server's dotnetcore app had a wwwroot folder with a placeholder HTML page in it, so thought it might be expedient to host the webchat client there. But now . . .阅读更多