Home Database Mysql Tutorial 这一年多来沃趣科技发布的精选文章

这一年多来沃趣科技发布的精选文章

Jun 07, 2016 pm 04:40 PM
linux release article science and technology Featured

LINUX上MYSQL优化三板斧? 开放平台下数据库高性能高可用方案? 请不要用SECONDS_BEHIND_MASTER来衡量MYSQL主备的延迟时间? MYSQL 5.6 GTID模式下手工删除日志导致备库数据丢失 EXT文件系统误删除数据恢复指南?? ORACLE STANDBY DELAY 监控实现? MYSQL单机多实

LINUX上MYSQL优化三板斧?

开放平台下数据库高性能高可用方案?

请不要用SECONDS_BEHIND_MASTER来衡量MYSQL主备的延迟时间?

MYSQL 5.6 GTID模式下手工删除日志导致备库数据丢失

EXT文件系统误删除数据恢复指南??

ORACLE STANDBY DELAY 监控实现?

MYSQL单机多实例CGROUP实践

为什么删除了主库BINLOG,同步依然正常??

MYSQL数据丢失讨论

INNODB PLUGIN 1.0手册翻译?

远离故障的十大原则

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How to start apache How to start apache Apr 13, 2025 pm 01:06 PM

The steps to start Apache are as follows: Install Apache (command: sudo apt-get install apache2 or download it from the official website) Start Apache (Linux: sudo systemctl start apache2; Windows: Right-click the "Apache2.4" service and select "Start") Check whether it has been started (Linux: sudo systemctl status apache2; Windows: Check the status of the "Apache2.4" service in the service manager) Enable boot automatically (optional, Linux: sudo systemctl

What to do if the apache80 port is occupied What to do if the apache80 port is occupied Apr 13, 2025 pm 01:24 PM

When the Apache 80 port is occupied, the solution is as follows: find out the process that occupies the port and close it. Check the firewall settings to make sure Apache is not blocked. If the above method does not work, please reconfigure Apache to use a different port. Restart the Apache service.

How to monitor Nginx SSL performance on Debian How to monitor Nginx SSL performance on Debian Apr 12, 2025 pm 10:18 PM

This article describes how to effectively monitor the SSL performance of Nginx servers on Debian systems. We will use NginxExporter to export Nginx status data to Prometheus and then visually display it through Grafana. Step 1: Configuring Nginx First, we need to enable the stub_status module in the Nginx configuration file to obtain the status information of Nginx. Add the following snippet in your Nginx configuration file (usually located in /etc/nginx/nginx.conf or its include file): location/nginx_status{stub_status

How to start monitoring of oracle How to start monitoring of oracle Apr 12, 2025 am 06:00 AM

The steps to start an Oracle listener are as follows: Check the listener status (using the lsnrctl status command) For Windows, start the "TNS Listener" service in Oracle Services Manager For Linux and Unix, use the lsnrctl start command to start the listener run the lsnrctl status command to verify that the listener is started

How to set up a recycling bin in Debian system How to set up a recycling bin in Debian system Apr 12, 2025 pm 10:51 PM

This article introduces two methods of configuring a recycling bin in a Debian system: a graphical interface and a command line. Method 1: Use the Nautilus graphical interface to open the file manager: Find and start the Nautilus file manager (usually called "File") in the desktop or application menu. Find the Recycle Bin: Look for the Recycle Bin folder in the left navigation bar. If it is not found, try clicking "Other Location" or "Computer" to search. Configure Recycle Bin properties: Right-click "Recycle Bin" and select "Properties". In the Properties window, you can adjust the following settings: Maximum Size: Limit the disk space available in the Recycle Bin. Retention time: Set the preservation before the file is automatically deleted in the recycling bin

How to restart the apache server How to restart the apache server Apr 13, 2025 pm 01:12 PM

To restart the Apache server, follow these steps: Linux/macOS: Run sudo systemctl restart apache2. Windows: Run net stop Apache2.4 and then net start Apache2.4. Run netstat -a | findstr 80 to check the server status.

How to optimize the performance of debian readdir How to optimize the performance of debian readdir Apr 13, 2025 am 08:48 AM

In Debian systems, readdir system calls are used to read directory contents. If its performance is not good, try the following optimization strategy: Simplify the number of directory files: Split large directories into multiple small directories as much as possible, reducing the number of items processed per readdir call. Enable directory content caching: build a cache mechanism, update the cache regularly or when directory content changes, and reduce frequent calls to readdir. Memory caches (such as Memcached or Redis) or local caches (such as files or databases) can be considered. Adopt efficient data structure: If you implement directory traversal by yourself, select more efficient data structures (such as hash tables instead of linear search) to store and access directory information

How to solve the problem that apache cannot be started How to solve the problem that apache cannot be started Apr 13, 2025 pm 01:21 PM

Apache cannot start because the following reasons may be: Configuration file syntax error. Conflict with other application ports. Permissions issue. Out of memory. Process deadlock. Daemon failure. SELinux permissions issues. Firewall problem. Software conflict.

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