c increase 5-linked list

Article directory Linked list classification Programming elements linux kernel list General linked list Linked list Keywords: discontinuous storage, dynamic generation, pointer connection, data and and pointer fields. classification By head node: Lead linked list (no data field in the head node) Untitled list By no ...

Posted on Mon, 18 Nov 2019 11:47:31 -0500 by bough

Number of Nginx service optimization change processes

Change the number of Nginx running processes In the high concurrency scenario, more Nginx processes need to be started to ensure fast response, so as to process users' requests and avoid blocking. There are more running processes. When responding to the access request, Nginx will not start a new process temporarily to provide services, which r ...

Posted on Mon, 18 Nov 2019 09:52:12 -0500 by Cesar

namespace and use in php

For object - oriented programming, the concepts of namespace and use are very important 1. The root namespace is a backslash \, which is a bit similar to the root directory / in linux, but when using the var_dump() function to print, it is actually an empty string 1 var_dump(__NAMESPACE__); 2 //string(0) "" 2. For the child namespace under th ...

Posted on Mon, 18 Nov 2019 09:03:43 -0500 by zoooj

An in-depth understanding of Linux/Centos7 system management

Preface: inode (file node) and block (data block) Hard link and soft link Recover the deleted files by mistake (that is, RM RF can be backed up first, then ext4 and xfs can be recovered) Classification of log files User log and program log I. overview of inode and block 1.1 overview File data includes meta information and actual data The fi ...

Posted on Mon, 18 Nov 2019 08:13:04 -0500 by tylrwb

Linux problem record - the hostname becomes bogon

Absrtact: This paper mainly records the reason why the host name becomes bogon and the solution. Problem recurrence After a login, the host name becomes bogon, and then it will be bogon every time you log in to the Linux system. 1 Connecting to 192.168.35.128:22... 2 Connection established. 3 To escape to local shell, press 'Ctrl+Alt+]'. 4 5 ...

Posted on Mon, 18 Nov 2019 05:41:38 -0500 by xmatthawkx

Using binary method to deploy K8S-1.16 high availability cluster

I. project introduction The project aims to let enterprises or individuals who intend to use the native kubernetes cluster manually build the kubernetes high availability cluster in a convenient and systematic way. And let related personnel better understand the operation mechanism of kubernetes cluster. Software version OS CentOS 7.7 (ubuntu ...

Posted on Mon, 18 Nov 2019 04:11:52 -0500 by Lol5916

Centos configures rsync remote synchronization and uses inotify+rsync real-time backup

Bowen catalogueI. overview of rsync1. Basic usage of rsync command2. Configure rsync1. Configure rsync for synchronous authentication2. rsync regular synchronization3. Configure inotify+rsync real-time synchronization I. overview of rsync Rsync (Remote Sync) is an open-source fast backup tool, which can synchronize the entire directory tree ...

Posted on Mon, 18 Nov 2019 03:16:36 -0500 by LiamBailey

Using the Jacobo Maven plug-in to create code coverage reports

This blog post describes how we use the Jacobo Maven plug-in to create code coverage reports for unit and integration tests. Our construction requirements are as follows: When running tests, our build must create code coverage reports for unit and integration tests. Code coverage reports must be created in a separate directory. In other words, ...

Posted on Mon, 18 Nov 2019 02:51:19 -0500 by jannoy

014.Kubernetes binary deployment docker

1. Deploy docker 1.1 deploy docker component docker runs and manages containers, and kubelet interacts with it through the Container Runtime Interface (CRI). 1.2 download docker 1 [root@k8smaster01 ~]# cd /opt/k8s/work 2 [root@k8smaster01 work]# wget https://download.docker.com/linux/static/stable/x86_64/docker-18.09.6.tgz 3 [root@k8smast ...

Posted on Sun, 17 Nov 2019 23:50:24 -0500 by bruceleejr

015.Kubernetes binary deployment all nodes kubelet

I. deployment of kubelet kubelet runs on each worker node, receives the request sent by Kube API server, manages the Pod container, and executes interactive commands, such as exec, run, logs, etc. When kubelet starts, it automatically registers the node information with Kube apiserver, and the built-in cadviser counts and monitors the resourc ...

Posted on Sun, 17 Nov 2019 23:45:26 -0500 by dev99