search
HomeDatabaseMysql Tutorial 采用MySQL-Proxy进行读写分离时的一点疑问

今天在采用MySQL-Proxy0.8.3测试读写分离时,功能都正常,但出现了一些让人有些疑惑的提示信息,不太确定算不算异常。。。。。。配置文件“/usr/local/mysql-pro

今天在采用 MySQL-Proxy 0.8.3 测试读写分离时,,功能都正常,但出现了一些让人有些疑惑的提示信息,

不太确定算不算异常。。。。。。


配置文件/usr/local/mysql-proxy/etc/mysql-proxy.cnf如下:

[mysql-proxy] basedir = /usr/local/mysql-proxy daemon = true keepalive = true proxy-address = 0.0.0.0:3306 max-open-files = 65535 proxy-fix-bug-25371 = true event-threads = 8 proxy-backend-addresses = 10.222.5.224:3306 proxy-read-only-backend-addresses = 10.137.23.179:3306 plugin-dir = /usr/local/mysql-proxy/lib/mysql-proxy/plugins plugins = admin,proxy admin-lua-script = /usr/local/mysql-proxy/lib/mysql-proxy/lua/admin.lua proxy-lua-script = /usr/local/mysql-proxy/lib/mysql-proxy/lua/rw-splitting.lua admin-address = 10.209.6.102:3307 admin-username = root admin-password = 123456 pid-file= /usr/local/mysql-proxy/run/mysql-proxy.pid log-file = /usr/local/mysql-proxy/log/mysql-proxy.log log-level = warning

#!/bin/sh # # mysql-proxy This script starts and stops the mysql-proxy daemon # # chkconfig: - 78 30 # processname: mysql-proxy # description: mysql-proxy is a proxy daemon to mysql # config: /usr/local/mysql-proxy/etc/mysql-proxy.cnf # pidfile: /usr/local/mysql-proxy/run/mysql-proxy.pid # PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin DAEMON="/usr/local/mysql-proxy/bin/mysql-proxy" CONFIGFILE="/usr/local/mysql-proxy/etc/mysql-proxy.cnf" PIDFILE="/usr/local/mysql-proxy/run/mysql-proxy.pid" LOCKFILE="/var/lock/subsys/mysql-proxy" PROG=`basename $DAEMON` RETVAL=0 start() { echo -n $"Starting ${PROG}......" [ -x $DAEMON ] || exit 5 [ -f $CONFIGFILE ] || exit 6 ${DAEMON} --defaults-file=${CONFIGFILE} || echo -n "${PROG} already running" RETVAL=$? echo [[ $RETVAL -eq 0 ]] && touch $LOCKFILE return $RETVAL } stop() { echo -n $"Stopping ${PROG}......" if [[ `ps aux | grep bin/mysql-proxy | grep -v grep | wc -l` -gt 0 ]]; then kill -TERM `ps -A -oppid,pid,cmd | grep bin/mysql-proxy | grep -v grep | awk '{print $2}'` fi RETVAL=$? echo [[ $RETVAL -eq 0 ]] && rm -f $LOCKFILE $PIDFILE return $RETVAL } restart() { stop sleep 1 start } case "$1" in start) start ;; stop) stop ;; restart) restart ;; condrestart) [[ -e $LOCKFILE ]] && restart ;; *) echo "Usage: $0 {start|stop|restart|condrestart}" RETVAL=1 ;; esac exit $RETVAL

WIFSIGNALED(status)
returns true if the child process exited because of a signal which was not caught.

也就是说,如果是因为子进程未能正常捕获信号而退出时,就返回true。


更详细的描述,可以参考这里(服务器开发之 Daemon 和 Keepalive):


目前针对此类的提示信息,还不太确定是否属于异常,希望各位多提些建议。。。。。。



Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
MySQL String Types: Storage, Performance, and Best PracticesMySQL String Types: Storage, Performance, and Best PracticesMay 10, 2025 am 12:02 AM

MySQLstringtypesimpactstorageandperformanceasfollows:1)CHARisfixed-length,alwaysusingthesamestoragespace,whichcanbefasterbutlessspace-efficient.2)VARCHARisvariable-length,morespace-efficientbutpotentiallyslower.3)TEXTisforlargetext,storedoutsiderows,

Understanding MySQL String Types: VARCHAR, TEXT, CHAR, and MoreUnderstanding MySQL String Types: VARCHAR, TEXT, CHAR, and MoreMay 10, 2025 am 12:02 AM

MySQLstringtypesincludeVARCHAR,TEXT,CHAR,ENUM,andSET.1)VARCHARisversatileforvariable-lengthstringsuptoaspecifiedlimit.2)TEXTisidealforlargetextstoragewithoutadefinedlength.3)CHARisfixed-length,suitableforconsistentdatalikecodes.4)ENUMenforcesdatainte

What are the String Data Types in MySQL?What are the String Data Types in MySQL?May 10, 2025 am 12:01 AM

MySQLoffersvariousstringdatatypes:1)CHARforfixed-lengthstrings,2)VARCHARforvariable-lengthtext,3)BINARYandVARBINARYforbinarydata,4)BLOBandTEXTforlargedata,and5)ENUMandSETforcontrolledinput.Eachtypehasspecificusesandperformancecharacteristics,sochoose

How to Grant Permissions to New MySQL UsersHow to Grant Permissions to New MySQL UsersMay 09, 2025 am 12:16 AM

TograntpermissionstonewMySQLusers,followthesesteps:1)AccessMySQLasauserwithsufficientprivileges,2)CreateanewuserwiththeCREATEUSERcommand,3)UsetheGRANTcommandtospecifypermissionslikeSELECT,INSERT,UPDATE,orALLPRIVILEGESonspecificdatabasesortables,and4)

How to Add Users in MySQL: A Step-by-Step GuideHow to Add Users in MySQL: A Step-by-Step GuideMay 09, 2025 am 12:14 AM

ToaddusersinMySQLeffectivelyandsecurely,followthesesteps:1)UsetheCREATEUSERstatementtoaddanewuser,specifyingthehostandastrongpassword.2)GrantnecessaryprivilegesusingtheGRANTstatement,adheringtotheprincipleofleastprivilege.3)Implementsecuritymeasuresl

MySQL: Adding a new user with complex permissionsMySQL: Adding a new user with complex permissionsMay 09, 2025 am 12:09 AM

ToaddanewuserwithcomplexpermissionsinMySQL,followthesesteps:1)CreatetheuserwithCREATEUSER'newuser'@'localhost'IDENTIFIEDBY'password';.2)Grantreadaccesstoalltablesin'mydatabase'withGRANTSELECTONmydatabase.TO'newuser'@'localhost';.3)Grantwriteaccessto'

MySQL: String Data Types and CollationsMySQL: String Data Types and CollationsMay 09, 2025 am 12:08 AM

The string data types in MySQL include CHAR, VARCHAR, BINARY, VARBINARY, BLOB, and TEXT. The collations determine the comparison and sorting of strings. 1.CHAR is suitable for fixed-length strings, VARCHAR is suitable for variable-length strings. 2.BINARY and VARBINARY are used for binary data, and BLOB and TEXT are used for large object data. 3. Sorting rules such as utf8mb4_unicode_ci ignores upper and lower case and is suitable for user names; utf8mb4_bin is case sensitive and is suitable for fields that require precise comparison.

MySQL: What length should I use for VARCHARs?MySQL: What length should I use for VARCHARs?May 09, 2025 am 12:06 AM

The best MySQLVARCHAR column length selection should be based on data analysis, consider future growth, evaluate performance impacts, and character set requirements. 1) Analyze the data to determine typical lengths; 2) Reserve future expansion space; 3) Pay attention to the impact of large lengths on performance; 4) Consider the impact of character sets on storage. Through these steps, the efficiency and scalability of the database can be optimized.

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

VSCode Windows 64-bit Download

VSCode Windows 64-bit Download

A free and powerful IDE editor launched by Microsoft

SublimeText3 Linux new version

SublimeText3 Linux new version

SublimeText3 Linux latest version

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Safe Exam Browser

Safe Exam Browser

Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.