Programmer Group

Preface ELK is the abbreviation of three kinds of software, which are composed of Elasticsearch, Logstash and Kibana. In the process of development, there are new members, Beats, which form Elastic Stack. So, ELK is the old name, and Elastic Stack is the new name. The entire Elastic Stack technology ...

WEB Management Tool WebVirtMgr WebVirtMgr is a libvirt-based Web interface for managing virtual machines.It allows you to create and configure new domains and adjust the resource allocation for domains.The VNC viewer provides a complete graphical console for the guest domain.KVM is currently the only supported hypervisor for virtual machines. ...

4.5 billion data migration records follow-up-to-day data volume levels of 10 million to clickhouse Related Document Address flume Reference Address waterdrop Reference Address clickhouse Reference Address kafka Reference Address The environment log is on one server and the clickhouse cluster is on the other. thinking Previously, when m ...

[External chain picture transfer failed, source station may have anti-theft chain mechanism, it is recommended to save the picture and upload it directly (img-6ljXK6PO-1579487161655). (]) 1. Case Background Write a script with Python and deploy it to a server in Linux environment. Since the server li ...

  Local environment: laravel version: Laravel admin version: Laravel admin excellent expansion pack!!   1, Install configuration laravel 6.11.0 1. installation composer create-project --prefer-dist laravel/laravel blog 2. changing the time zone 'timezone' => 'PRC' 3. change the l ...

Discussion on cache, buffer and swap caused by free $ free total used free shared buffers cached Mem: 8062624 7910056 152568 0 5232 964468 -/+ buffers/cache: 6940356 1122268 Swap: 4194296 2592660 1601636 total: the ...

Environment CentOS7.4 mariadb 5.5 In principle, all mariadb installed from yum can be used Because the paths of / var/lib/mysql and / etc/my.cnf are the same The reason for this operation is that zabbix's history problem log has filled the disk, so you can only add a new hard disk and change the mysql storage path ------------------------- ...

One of the core ideas of Linux is that everything is a file. Among these files, the text file plays an important role. All the changes of system settings, the adjustment of software parameters, and the most basic command-line operation are the operation of "text". To manipulate text, you can't ...

In an interesting discussion, let's take a look at the docker compose configuration script: version: '2' services: redis: image: 'redis:5.0.3-stretch' restart: always command: redis-server --requirepass redis environment: # ALLOW_EMPTY_PASSWORD is recommended only for development. - ALLOW_EMPTY_PASSWORD=yes ...

Deploy your own ngrok in 7 minutes Article Background Pre-preparation Install software Article Background Recently, to develop the WeChat Public Number, we need to use the external network ip. However, the free version on the Internet is either slow or changing IP regularly, so we decided to dep ...