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0.5372018.04.22 21:20:07 Word Number 4283 Reading 4842 Mongodb fragmented summary Fragmentation is a method of distributing data across multiple servers. Mongodb uses fragmentation to support deployment of operations with very large datasets and high throughput A database system with large data sets and high throughput applications can ...

Preface: Recent tidy up some of the previous study notes. In the past, they were stored locally, and this time they were transferred to the network for reserve.   DNS Domain Name System As a distributed database that maps domain names and IP addresses, it makes it easier for people to access the Internet. At present, the limit for the leng ...

20190718 was supposed to do a php verification code, and it turned out that there were no pictures on my macbook, but it was OK on windows! ___________ Judging that the problem lies in the environment! macOS Mojave 10.14.5 WEB: Self-contained apache PHP: Self-contained php 7.1 After a lot of tossing and turning, the final result is: re-insta ...

Through the sweep of Wechat to download, there will be a white screen situation, perhaps because of security considerations or other reasons, it is no longer possible to download the apk through the sweep of Wechat. According to the ideas provided by netizens, this paper sorted out three schemes. 1. Developers applying for Tencent Open Platfor ...

samba server introduce samba server environment deployment Parameter setting of samba server Modify comment Modify browseable Modify valid users (valid users) Add directory writable User Write List Anonymous user login Anonymous user can mount Upgrading User Level samba server multiuser mount Safety Multiuser Sa ...

1. Enter the mysql command line, enter root and password [root@localhost ~]# mysql -u root -p Enter password:  Welcome to the MySQL monitor.  Commands end with ; or \g. Your MySQL connection id is 19 Server version: 5.7.22 MySQL Community Server (GPL)   Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.   Orac ...

Catalog Configuration of server II. Configuring Agents 3. Notes: 1. Ports are not accessible 2. Active and passive modes of ZABBIX 3. Incorrect alarm time 4. Reference: Configuration of server First configure the zabbix server side 1. go zabbix official website Choose install zabbix from package mode, and then select ...

As a reverse proxy and load balancing server, nginx must be highly available, so it supports hot deployment.The hot deployment of nginx is closely related to its concurrency model.To put it plainly, it's because of the master process.When ngnix is notified to re-read the configuration file, the master process makes grammatical errors.If there ...

elastic: https://www.elastic.co/ In order to facilitate centralized viewing of the business logs of multiple hosts, we use Filebeat, Redis, Logstash to collect: (1) Filebeat monitors the changes of log files and writes the new part into redis. The log of each line is the data of a list set of specified key s in redis. (2) LogStash monitors t ...