关于MySQL-Proxy子进程异常退出BUG修复
关于MySQL-Proxy子进程异常退出的问题,我已经在之前的博文中提到过:http://sofar.blog.51cto.com/353572/1398820相关的错误信息如下图所示:经查阅11号信号为S
刚开始定位到以下两个源码文件:
src/chassis-unix-daemon.c
src/chassis-mainloop.c
在其中看到了对 SIGTERM/SIGINT/SIGHUP 三个信号的处理,于是也按照类似的方法添加了对 SIGSEGV 信号的处理(将其信号忽略掉),修改大致如下:
src/chassis-unix-daemon.c:
signal(SIGSEGV, chassis_unix_signal_forward); ...... signal(SIGSEGV, SIG_DFL);src/chassis-mainloop.c:
struct event ev_sigterm, ev_sigint, ev_sigsegv; ...... signal_set(&ev_sigsegv, SIGSEGV, sigsegv_handler, NULL); event_base_set(chas->event_base, &ev_sigsegv); signal_add(&ev_sigsegv, NULL); ...... signal_del(&ev_sigsegv);# make && make install
再次启动编译后的 MySQL-Proxy 程序,几分钟后会生成如下core文件:
本文出自 “人生理想在于坚持不懈” 博客,请务必保留此出处
,
Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



The article discusses using MySQL's ALTER TABLE statement to modify tables, including adding/dropping columns, renaming tables/columns, and changing column data types.

InnoDB's full-text search capabilities are very powerful, which can significantly improve database query efficiency and ability to process large amounts of text data. 1) InnoDB implements full-text search through inverted indexing, supporting basic and advanced search queries. 2) Use MATCH and AGAINST keywords to search, support Boolean mode and phrase search. 3) Optimization methods include using word segmentation technology, periodic rebuilding of indexes and adjusting cache size to improve performance and accuracy.

Article discusses configuring SSL/TLS encryption for MySQL, including certificate generation and verification. Main issue is using self-signed certificates' security implications.[Character count: 159]

Article discusses popular MySQL GUI tools like MySQL Workbench and phpMyAdmin, comparing their features and suitability for beginners and advanced users.[159 characters]

Article discusses strategies for handling large datasets in MySQL, including partitioning, sharding, indexing, and query optimization.

The article discusses dropping tables in MySQL using the DROP TABLE statement, emphasizing precautions and risks. It highlights that the action is irreversible without backups, detailing recovery methods and potential production environment hazards.

The difference between clustered index and non-clustered index is: 1. Clustered index stores data rows in the index structure, which is suitable for querying by primary key and range. 2. The non-clustered index stores index key values and pointers to data rows, and is suitable for non-primary key column queries.

The article discusses creating indexes on JSON columns in various databases like PostgreSQL, MySQL, and MongoDB to enhance query performance. It explains the syntax and benefits of indexing specific JSON paths, and lists supported database systems.
