EXP is a Java plug-in hot-swappable framework

The path to growth as a programmer Internet/Programmer/Technology/Data Sharing focus on This article should take approximately 5.5 minutes to read. From: juejin.cn/post/7267091417029148733 1 Foreword For many years, ToB applications have faced the problem of how to meet customization requirements. For example, most localization software manufacturers have a standard program that supports the functional requirements of […]

EXP is a Java plug-in hot-swappable framework

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Linux uses Swap partition (***)

Linux uses Swap partition (***) Liunx method of adding new hard disk and partition (***) How to add a file swap partition (swap) in Linux system – simple version Linux partition expansion (root partition expansion, SWAP partition expansion, mounting new partitions as directories) ————————————————– ————- Reference: Linux partition expansion (root partition expansion, SWAP partition expansion, […]

Swap space under Linux

1. Swap space definition and working mechanism Swap space is a disk partition that is divided from the disk and used as memory. When the system’s physical memory is insufficient, the system will transfer some data in the memory that has not been used for a long time to swap space. It can be seen […]

Centos7 installs oracle19c (with GUI) (swap partition is at least 16G)

1. Download Oracle 19c Download the corresponding version from Oracle’s official website: https://download.oracle.com/otn/linux/oracle19c/190000/LINUX.X64_193000_db_home.zip 2. Basic environment configuration Turn off firewall systemctl stop firewalled.service systemctl disable firewalled.service Turn off selinux vim /etc/selinux/config selinux=encourceing changed to disabled 3. Create an oracle account: useradd oracle passwd oracle –Create oinstall group and dba group groupadd oinstall groupadd dba User […]

Plug-in development Yate [3] – Hot-swappable plug-in Demo

The Yate plug-in supports the hot-swap function, which means that the plug-in dynamic library can be dynamically unloaded when the system is running, and the dynamic library can be loaded when needed; the dynamic library can also be modified and the plug-in can be reloaded. This enables hot swapping of plug-ins. This article will take […]

19 | Case: Why does the system Swap become higher (Part 1)

In the previous section, I took you through the analysis of memory leaks through a case of Fibonacci sequence. If dynamic memory is allocated directly or indirectly in the program, you must remember to release them, otherwise it will cause memory leaks, and in severe cases, even run out of system memory. However, on the […]

20 | Case: Why does the system Swap become higher? (Down)

In the previous section, we studied Linux memory recycling in detail, especially the principle of Swap. Let’s briefly review it first. When memory resources are tight, Linux releases file pages and anonymous pages through direct memory recycling and periodic scanning, so that memory can be allocated to processes that need it more. The recycling of […]