1、上傳軟件到服務器上 rz -Ephp
爲了便於管理上傳位置統一設置爲 /server/tools 中mysql
2、解壓軟件包sql
[root@backup sersync_installdir_64bit]# tree
.
└── sersync
├── bin
│ └── sersync
├── conf
│ └── confxml.xml
└── logs
二進制包安裝軟件方法(綠色軟件安裝方法):mongodb
直接解壓就能夠使用shell
[root@nfs01 sersync_installdir_64bit]# mv sersync/ /usr/local/ [root@nfs01 tools]# tree /usr/local/sersync/ /usr/local/sersync/ ├── bin │ └── sersync ├── conf │ └── confxml.xml └── logs 3 directories, 2 files
rsync 配置文件編寫:ini語法express
sersync配置文件編寫:xml語法centos
ansible配置文件編寫:yml 語法緩存
編寫前備份服務器
[root@backup conf]# ll total 4 -rw-r--r-- 1 root root 2214 Oct 26 2011 confxml.xml [root@backup conf]# cp confxml.xml{,.bak}
6-11行表示排除同步的數據,等價於 --exclude 功能,表示排除併發
<filter start="false"> <exclude expression="(.*)\.svn"></exclude> <exclude expression="(.*)\.gz"></exclude> <exclude expression="^info/*"></exclude> <exclude expression="^static/*"></exclude> </filter>
12-21行是利用inotify的功能監控指定的事件,等價與 -e create,delete…… 表示指定監控事件信息
<inotify> <delete start="true"/> <createFolder start="true"/> <createFile start="false"/> <closeWrite start="true"/> <moveFrom start="true"/> <moveTo start="true"/> <attrib start="false"/> <modify start="false"/> </inotify>
24-28行:推送到哪裏 name=模塊 是rsync服務器的地址
<localpath watch="/data"> #監控那個目錄 <remote ip="172.16.1.41" name="backup"/> <!--<remote ip="192.168.8.39" name="tongbu"/>--> <!--<remote ip="192.168.8.40" name="tongbu"/>--> </localpath>
29-35行 定義rsync推送時的參數信息。
注意:不要有單詞拼寫錯誤 (true),不然程序不能正常啓動,卡死
<rsync> <commonParams params="-az"/> <auth start="true" users="rsync_backup" passwordfile="/etc/rsync.password"/> <userDefinedPort start="false" port="874"/><!-- port=874 --> <timeout start="false" time="100"/><!-- timeout=100 --> <ssh start="false"/> </rsync>
配置文件最終內容:
1 [root@nfs01 tools]# cat /usr/local/sersync/conf/confxml.xml 2 <?xml version="1.0" encoding="ISO-8859-1"?> 3 <head version="2.5"> 4 <host hostip="localhost" port="8008"></host> 5 <debug start="false"/> 6 <fileSystem xfs="false"/> 7 <filter start="false"> 8 <exclude expression="(.*)\.svn"></exclude> 9 <exclude expression="(.*)\.gz"></exclude> 10 <exclude expression="^info/*"></exclude> 11 <exclude expression="^static/*"></exclude> 12 </filter> 13 <inotify> 14 <delete start="true"/> 15 <createFolder start="true"/> 16 <createFile start="false"/> 17 <closeWrite start="true"/> 18 <moveFrom start="true"/> 19 <moveTo start="true"/> 20 <attrib start="false"/> 21 <modify start="false"/> 22 </inotify> 23 24 <sersync> 25 <localpath watch="/data"> 26 <remote ip="172.16.1.41" name="nfsbackup"/> 27 <!--<remote ip="192.168.8.39" name="tongbu"/>--> 28 <!--<remote ip="192.168.8.40" name="tongbu"/>--> 29 </localpath> 30 <rsync> 31 <commonParams params="-az"/> 32 <auth start="true" users="rsync_backup" passwordfile="/etc/rsync.password"/> 33 <userDefinedPort start="false" port="874"/><!-- port=874 --> 34 <timeout start="false" time="100"/><!-- timeout=100 --> 35 <ssh start="false"/> 36 </rsync> 37 <failLog path="/tmp/rsync_fail_log.sh" timeToExecute="60"/><!--default every 60mins execute once--> 38 <crontab start="false" schedule="600"><!--600mins--> 39 <crontabfilter start="false"> 40 <exclude expression="*.php"></exclude> 41 <exclude expression="info/*"></exclude> 42 </crontabfilter> 43 </crontab> 44 <plugin start="false" name="command"/> 45 </sersync> 46 47 <plugin name="command"> 48 <param prefix="/bin/sh" suffix="" ignoreError="true"/> <!--prefix /opt/tongbu/mmm.sh suffix--> 49 <filter start="false"> 50 <include expression="(.*)\.php"/> 51 <include expression="(.*)\.sh"/> 52 </filter> 53 </plugin> 54 55 <plugin name="socket"> 56 <localpath watch="/opt/tongbu"> 57 <deshost ip="192.168.138.20" port="8009"/> 58 </localpath> 59 </plugin> 60 <plugin name="refreshCDN"> 61 <localpath watch="/data0/htdocs/cms.xoyo.com/site/"> 62 <cdninfo domainname="ccms.chinacache.com" port="80" username="xxxx" passwd="xxxx"/> 63 <sendurl base="http://pic.xoyo.com/cms"/> 64 <regexurl regex="false" match="cms.xoyo.com/site([/a-zA-Z0-9]*).xoyo.com/images"/> 65 </localpath> 66 </plugin> 67 </head>
首先讓程序讓文件有執行權限
[root@nfs01 bin]# chmod a+x sersync [root@nfs01 bin]# ll total 1768 -rwxr-xr-x 1 root root 1810128 Oct 26 2011 sersync
[root@nfs01 bin]# ./sersync -h set the system param execute:echo 50000000 > /proc/sys/fs/inotify/max_user_watches execute:echo 327679 > /proc/sys/fs/inotify/max_queued_events parse the command param _______________________________________________________ 重要參數-d:啓用守護進程模式 重要參數-r:在監控前,將監控目錄與遠程主機用rsync命令推送一遍 參數-n: 指定開啓守護線程的數量,默認爲10個 重要參數-o:指定配置文件,默認使用confxml.xml文件 參數-m:單獨啓用其餘模塊,使用 -m refreshCDN 開啓刷新CDN模塊 參數-m:單獨啓用其餘模塊,使用 -m socket 開啓socket模塊 參數-m:單獨啓用其餘模塊,使用 -m http 開啓http模塊 不加-m參數,則默認執行同步程序 ________________________________________________________________
./sersync -dro /usr/local/sersync/conf/confxml.xml
將/usr/local/sersync/bin/程序的bin目錄添加到PATH中
export PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin:/usr/local/sersync/bin/
而後sersync命令就能直接使用
[root@nfs01 scripts]# sersync -dro /usr/local/sersync/conf/confxml.xml set the system param execute:echo 50000000 > /proc/sys/fs/inotify/max_user_watches execute:echo 327679 > /proc/sys/fs/inotify/max_queued_events parse the command param option: -d run as a daemon option: -r rsync all the local files to the remote servers before the sersync work option: -o config xml name: /usr/local/sersync/conf/confxml.xml daemon thread num: 10 parse xml config file host ip : localhost host port: 8008 daemon start,sersync run behind the console use rsync password-file : user is rsync_backup passwordfile is /etc/rsync.password config xml parse success please set /etc/rsyncd.conf max connections=0 Manually sersync working thread 12 = 1(primary thread) + 1(fail retry thread) + 10(daemon sub threads) Max threads numbers is: 22 = 12(Thread pool nums) + 10(Sub threads) please according your cpu ,use -n param to adjust the cpu rate ------------------------------------------ rsync the directory recursivly to the remote servers once working please wait... execute command: cd /data && rsync -az -R --delete ./ rsync_backup@172.16.1.41::nfsbackup --password-file=/etc/rsync.password >/dev/null 2>&1 run the sersync: watch path is: /data
結論:通過測試,每秒200文件併發,數據同步幾乎無延遲(小於1秒)
1)監控文件系統事件變化,經過同步工具實現實時數據同步。
1)併發若是大於200個文件(10-100k),同步就會有延遲
2)咱們前面寫的腳本,每次都是所有推送一次,但確實是增量的。也能夠只同步變化的文件,不變化的不理。
3)監控到事件後,調用rsync同步是單進程的,而sersync爲多進程同步。既然有了inotify-tools,爲何還要開發sersync?
1)支持經過配置文件管理
2)真正的守護進程socket
3)能夠對失敗文件定時重傳(定時任務功能)
4)第三方的HTTP接口(例如:更新cdn緩存)
5)默認多進程rsync同步
1)inotify(sersync)+ rsync,是文件級別的。
2)drbd文件系統級別,文件系統級別,基於block塊同步,缺點:備節點數據不可用
3)第三方軟件的同步功能:mysql同步(主從複製),oracle,mongodb
4)程序雙寫,直接寫兩臺服務器。
5)利用產品業務邏輯解決(讀寫分離,備份讀不到,讀主)
centos6
[root@nfs01 ~]# man man The standard sections of the manual include: 1 User Commands #用戶命令 2 System Calls #系統調用 3 C Library Functions # Ç庫函數 4 Devices and Special Files #設備和特殊文件 5 File Formats and Conventions #文件格式和約定 6 Games et. Al. #遊戲等。 7 Miscellanea #雜記 8 System Administration tools and Daemons #系統管理工具和程序 Distributions customize the manual section to their specifics, which often include additional sections.
centos7
[root@clsn tuichu]# man ~ 1 Executable programs or shell commands 2 System calls (functions provided by the kernel) 3 Library calls (functions within program libraries) 4 Special files (usually found in /dev) 5 File formats and conventions eg /etc/passwd 6 Games 7 Miscellaneous (including macro packages and conventions), e.g. man(7), groff(7) 8 System administration commands (usually only for root) 9 Kernel routines [Non standard]