Original: 100 Cluster Storage Systems and real-time data backup, real-time Cluster

Original: 100 Cluster Storage Systems and real-time data backup, real-time Cluster

Server description Internet IP (NAT) Intranet IP (NAT) Host Name
Apache web Server 10.0.0.7/24 172.16.1.7/24 web02
Nginx web Server 10.0.0.8/24 172.16.1.8/24 web01
NFS storage server 10.0.0.31/24 172.16.1.31/24 nfs01
Rsync backup Server 10.0.0.41/24 172.16.1.41/24 backup

Requirements:

Build a website cluster with backend NFS shared storage and optimize the solution
1. Configure the NFS service:
Requirements:
1) share the/data directory on the NFS server nfs01, and allow mounting a total
.
2) when data is written to the mount point/data on the NFS client web01, data can be deleted on the NFS client web02.
Except or modifying.

(3) Build a backup server for the whole network of the website Cluster
Requirement: configure the Rsync Data Synchronization Service on the backup server, which can be pushed from the nfs01 server.
The/backup Directory of the backup server. Ben
Specific requirements: the backup Directory of the backup server must be/backup.
(4) solves the problem of single point of storage shared by the backend NFS of the website cluster for Real-time Data Synchronization
1. Real-time Data Synchronization requirements:
When a user writes data to the NFS server nfs01 through any web server, the data is copied to the backup server.
Backup.

 

NFS server

First Track: Check whether the nfs rpc service software is installed

Rpm-qa | grep nfs

Rpm-qa | grep rpc

Note: nfs and rpc service software is not installed in centos by default.

The second milestone: Installing nfs and rpc service software in yum

Yum install-y nfs-utils rpcbind

# Yum install-y nfs-utils rpcbind

Third milestone: compiling the NFS configuration file

NFS service configuration file

Cat>/etc/exports <EOF

/Data 172.16.1.0/24 (rw, sync)

EOF

Step 4: create a shared directory

Mkdir-p/data

Chown-R nfsnobody. nfsnobody/data

The fifth milestone: start the service

/Etc/init. d/rpcbind start

View NFS service registration information

#/Usr/sbin/rpcinfo

# Rpcinfo-p localhost

Set auto-start

Chkconfig rpcbind on

Chkconfig nfs on

View the rpcbind auto start number

Head-10/etc/init. d/rpcbind

Chkconfig: 2345 13 87

View nfs boot auto-start number

# Head-10/etc/init. d/nfs

Chkconfig:-30 60

Sixth history: Check NFS service configuration and local test mounting

# Showmount-e

# Df-h

# Cd/mnt

# Echo "momoda"> oldoy.txt

# Ll

Total 4

-Rw-r -- 1 nfsnobody 7 Aug 31 10:57 oldoy.txt

# Cd/data

# Cat oldboy.txt

Momoda

 

What the web server does

First Track: Check whether the nfs rpc service software is installed

Rpm-qa | grep nfs

Rpm-qa | grep rpc

Note: nfs and rpc service software is not installed in centos by default.

The second milestone: Installing nfs and rpc service software in yum

Yum install-y nfs-utils rpcbind

The third historical monument: checks whether shared directories exist and mounts shared directories.

# Showmount-e 172.16.1.31

Mount-t nfs 172.16.1.31:/data/mnt

Df-h

 

Rsync server

 

 

First milestone: Check whether this software is available

# Rpm-qa rsync

Second milestone: Installing rsync Software

# Yum install-y rsync

The third milestone: Compile the configuration file (compile the configuration file and follow the configuration file for subsequent steps)

# Cat>/etc/rsyncd. conf <EOF

# Created by HQ 2017

# Rsyncd. conf start ##

 

Uid = rsync

Gid = rsync

Use chroot = no

Max connections = 200

Timeout = 300

Pid file =/var/run/rsyncd. pid

Lock file =/var/run/rsync. lock

Log file =/var/log/rsyncd. log

Ignore errors

Read only = false

List = false

Hosts allow = 172.16.1.0/24

Hosts deny = 0.0.0.0/32

Auth users = rsync_backup

Secrets file =/etc/rsync. password

[Backup]

Comment = "backup dir by oldboy"

Path =/backup

EOF

 

The fourth historical monument: management users who create backup directories

Useradd-s/sbin/nologin-M rsync

Step 5: create security authentication documents

Echo "rsync_backup: oldboy123">/etc/rsync. password

Chmod 600/etc/rsync. password

Sixth history: creating a backup directory

Mkdir-p/backup

Chown-R rsync. rsync/backup

The seventh milestone: starting the rsync Service

Rsync -- daemon

 

 

 

NFS server

2.5.3 client deployment

First milestone: Check whether this software is available

Rpm-qa rsync

Second milestone: Installing rsync Software

Yum install-y rsync

Third milestone: Creating Security Authentication Files

Echo "oldboy123">/etc/rsync. password

Chmod 600/etc/rsync. password

Test 4

Rsync-avz/etc rsync_backup@172.16.1.41: backup

 

Inotify Server:

Deploy and install inotify-tools software

Yum install-y inotify-tools

Rpm-ql inotify-tools

 

Third milestone: Writing inotify + rsync combined with scripts

[Root @ nfs01 server] # cd/server/scripts

[Root @ nfs01 scripts] # vim tongbu. sh

#! /Bin/bash

###########

 

Inotifywait-mrq/data -- format' % w % F'-e create, delete, close_write, moved_to | \

While read line

Do

Rsync-az -- delete/data/rsync_backup@172.16.1.41: backup -- password-file =/etc/rsync. password

Done

Sh tongbu. sh