bigdata – Fail to sync data to hadoop cluster (Failed to place enough replicas)

I installed the Hadoop cluster in ubuntu 20.04. After the Hadoop cluster is installed, I was faced with a big issue. The pipeline of Data sync from the client to the Hadoop cluster is broken. The data I intend to transfer to the Hadoop cluster is about 18Gb. Although my DFS remaining is 65%, the … Read more

c++ – How to get the number 1 in an array of zeroes to move to another place in the array when the player presses 1, 2, 3 or 4 using for loops?

Want to improve this question? Add details and clarify the problem by editing this post. Closed 26 min ago. This post was edited and submitted for review 20 min ago. I’m a very new programmer who is trying to make a game where the player as represented by a … Read more

python – How to overide the dropEvent of QstandardItem of a QListView to get position of the dragged object and position of the place where droped

Here is my problem, I want to draw a line between two check boxes in two different widget to show a relation between them. To do that i would like to use a drag and drop event. So i drag one check box to another (in another widget) and get the position of both of … Read more