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Tag: existence

React-native – printing: entries, “: cfbundleidentifier”, there is no attempt to have tried most solutions

I have tried all the solutions, but none of them seem to work.

An error was encountered processing the command (domain=NSPOSIXErrorDomain, code=2):
Failed to install the requested application

October 20, 2021By Simo React cfbundleidentifier, entry, existence, multi-solve, Native, printing, React, solution, too big, tryLeave a Comment

Stability detection of consistency hash algorithm and its problems and solvement strategies

Join a machine node:

assumes p2p network To add a new machine node N(new), then N(new) must first establish a connection with the N(x) node in the p2p network, and use N(x) to find the corres

October 14, 2021By Simo ZooKeeper Algorithm, Consistency, existence, Hash, problem, Resolution, stability, Strategy, TestingLeave a Comment

Hadoop fs -cp, said that the file does not exist?

The new.txt file is certain; I don’t know why when I try to enter the hdfs directory, it says the file does not exist.

deepak@deepak:/$cd $HOME/fs
deepak@deepak:~/fs$ls
new.txt
deepak@deepak:

October 12, 2021By Simo Hadoop cp, existence, file, fs, Hadoop, sayLeave a Comment

Internet-Explorer – Try uploading no files in Internet Explorer, forms not submitted

I have a form with input type=file. Internet Explorer allows users to type whatever they want in the input (and Firefox will bring up the file selector). If the user enters openly Invalid name, for

October 11, 2021By Simo Browser existence, Explorer, file, form, Internet, middle, movement, no, tryLeave a Comment

Why is there a silver light?

Why not authorize WPF or ASP.NET instead of creating new products? ASP.NET is only the server-side language of the website. Although they have added the AJAX ASP.NET control and other content Ye

October 10, 2021By Simo Silverlight existence, silver light, whyLeave a Comment

If there is a column in MySQL, use the alter to delete columns

If the column exists, how to use ALTER to delete a column in the MySQL table?

I know that I can use ALTER TABLE my_table DROP COLUMN my_column, but if my_column does not exist, an error will

October 4, 2021By Simo Mysql alter, Column, delete, existence, if, mysql, usageLeave a Comment
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