use hdfs to store pictures for the first time, and use java in the background to display pictures on the page. What are the specific solutions? 1. Tried using webhdfs , but redirected to datanode when accessing namenode , so cancel this scheme...
I just encountered such a problem in learning Hadoop get started -sharp bin hdfs dfs -ls drwxr-xr-x - zhugw supergroup 0 2018-11-17 17:11 output drwxr-xr-x - zhugw supergroup 0 2018-11-17 18:02 pv_users_count -sharp bin hdfs df...
centos version 7.2.1511 when starting hadoop2.8.5, prompt: [root@master sbin]-sharp . start-all.sh This script is Deprecated. Instead use start-dfs.sh and start-yarn.sh Starting namenodes on [master] master: usr bin env: bash: master: usr bin env: ...
problem description hadoop is deployed on the ubuntu server and HDFS and yarn are started an error occurred when the local windows java called the hadoop api copyFromLocalFile file the environmental background of the problems and what methods you h...
first of all, to introduce my situation, I have a physical machine as a master node, which is referred to as master later. There are also two additional servers, later known as node1 and node2. Where the docker node slave1-slave10, is configured on node...
Data cannot be converted to "POSIXlt " category in R now there is a copy of data similar to yyyy-mm-dd hh:mm:ss format stored in the second column of Data.csv < hr > DateTimes <- Data[2] >DateTimes 1 2017-01-01 00:00:00 2 2017-01-01 00:...
The merchandise page is shown in the figure below. The background can set the url, of different areas of the picture. Have you ever done it? the front-end code is the a link above the underlying image, like this, it is backstage, because each brand h...
in tp5, you want to execute logic 1 first, execute logic 2 when logic 1 fails, and return an error if logic 2 also fails. when I execute the following code, the system executes the error class defined by tp5 instead of the error format defined by myse...
I did a navigation and called two child components. The getkey parameter in the parent App component should be equal to the value of the menuKey defined by the level 2 home child component [1]. How should I write it? (after I delete the content, I only ...
assume that the total duration of input.mkv is 35 minutes, and the video length cut with the following command is correct, which is 10 minutes: ffmpeg -ss 00:10:00 -to 00:20:00 -accurate_seek -i input.mkv -codec copy -avoid_negative_ts 1 -y output.mk...