I got back an industrial control board with J2900 double Gigabit ports (odd model) for soft routing, but I wanted to use all kinds of skins, install a desktop environment with VNC, and I didn't have a cold on the virtual machine (and this U doesn't support through yet), so I had to give up all the router systems.As an Arch iron powder, in purs ...
Posted by vikaspa on Sun, 23 Feb 2020 08:31:13 -0800
Now Elasticsearch is used by more and more companies. I have learned some simple operations of Elasticsearch before, but I haven't recorded them carefully, so I forgot them soon after I learned them. Now let's take this time to learn again. This article will mainly introduce how to build a s ...
Posted by jnerotrix on Sun, 23 Feb 2020 02:03:25 -0800
The business system stores all kinds of reports and statistical data in ES. Due to historical reasons, the system makes statistics in full amount every day. As time goes on, the data storage space of ES is under great pressure. At the same time, because the use of ES index is not well planned, some indexes even exceed the max ...
Posted by beefy23 on Fri, 21 Feb 2020 03:37:14 -0800
Introduction to alpine Linux
Making JDK8 image based on alpine
1. Making jdk image by alpine
2. Create and edit dockerfile
3. Execute dockerfile to create image
4. Create and start the container
5. Enter the container
6. test jdk
2. Alpine makes jre image (slimming)
Minimum JRE b ...
Posted by angrytuna on Fri, 21 Feb 2020 03:34:39 -0800
1. Basic grammar
bin/hadoop fs specific command or bin / HDFS DFS specific command
2. Command Daquan
[andy@xiaoai01 hadoop-2.7.2]$ bin/hadoop fs
[-appendToFile <localsrc> ... <dst>]
[-cat [-ignoreCrc] <src> ...]
[-checksum <src> ...]
[-chgrp [-R] GROUP PATH...]
[-chmod [-R ...
Posted by Abarak on Fri, 21 Feb 2020 03:07:18 -0800
IO flow overview
IO flow is used to process data transmission between devices. Java operates on data through flow. The objects Java uses to operate flow are all in io package.
Classification of IO streams
Divided into input flow and output flow according to data flow direction
By data type: byte strea ...
Posted by colake on Thu, 20 Feb 2020 03:47:00 -0800
The first three chapters make the log part clear. From this chapter, start with TimeQueue and introduce Runinloop. In the next or next chapter, describe the event distribution mechanism of the entire muduo
TimerQueue seems to be a troublesome class, but it's very simple. We can regard it as a ...
Posted by NTGr on Wed, 19 Feb 2020 22:55:17 -0800
1. Self built yum warehouse, network source and local source respectively
Steps to create yum warehouse: 1) mount Centos system CD to a directory or copy network resources to a directory
2) find the repodata directory, which is located in the upper directory of yum warehouse address (network sharing is required if creating a network warehouse ...
Posted by Nay on Wed, 19 Feb 2020 07:36:39 -0800
Command name: write
Command path / usr/bin/write
Execute permission: all users
Function Description: send information to the user, and save with Ctrl+D
Write < user name >
# Send a message to tenentity
[root@izm5e2q95pbpe1hh0kkwoiz ~]# write eternity
write: eternity is logged in more than o ...
Posted by pdpullmn612 on Wed, 19 Feb 2020 04:49:04 -0800
Command English original meaning:manual
Command path: /usr/bin/man
Execution rights: all users
Function description: Get help information
man [command or configuration file]
#View help for ls command
Page Down with Space
Posted by Eiolon on Tue, 18 Feb 2020 18:47:48 -0800