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...
The business scenario is as follows: I provide a ws server A for client B to call. Each call, the client inserts a piece of data into the database tab and then submits it. My server An internally calls another server C, and passes this data to the serve...
1. Click the View hide current button and this content to show that another content can. 2. At first, manual display:none, found that after turning the page, the effect of the current cell none on the next page was still there. 3. So I tried to <...
A SpringBoot project will call a client program implemented in Netty when an address is accessed. The client will communicate with the server also implemented in Netty and get the result, and then return the result in Json format. This is the whole proc...
public boolean addAll(Collection<? extends E> c) { Object[] a = c.toArray(); int numNew = a.length; ensureCapacityInternal(size + numNew); Increments modCount System.arraycopy(a, 0, elementData, size, numNew); size += numNew...
now I need to load the EasyUI component dynamically, because my page is embedded in iframe loads correctly and the component takes effect in the following ways var script = parent.document.createElement("script"); script.type = "text j...