centos7下mongodb4集群安装

1、下载mg

https://www.mongodb.com/download-center/community

RHEL 7.0 Linux 64-bit x64 4.2 下载下来

2、准备机器、挂硬盘，格式化，网上有教程优化

3、准备3台机器

237，239，239

	机器1	机器2	机器3
mongos	172.30.1.237:62222	172.30.1.238:62222	172.30.1.239:62222
config	172.30.1.237:21000	172.30.1.238:21000	172.30.1.237:21000
shard01	172.30.1.237:27001(仲裁)	172.30.1.238:27001	172.30.1.239:27001
shard02	172.30.1.237:27002	172.30.1.238:27002（仲裁）	172.30.1.239:27002
shard03	172.30.1.238:27003	172.30.1.238:27003	172.30.1.238:27004（仲裁）

4、准备配置文件和路径

mkdir /opt/mongodb4.2/mongos

mkdir /opt/mongodb4.2/mongos/log

mkdir /opt/mongodb4.2/mongos/wtdb

mkdir /opt/mongodb4.2/shard1

mkdir /opt/mongodb4.2/shard1/log

mkdir /opt/mongodb4.2/shard1/wtdb

mkdir /opt/mongodb4.2/shard2

mkdir /opt/mongodb4.2/shard2/log

mkdir /opt/mongodb4.2/shard2/wtdb

mkdir /opt/mongodb4.2/shard3

mkdir /opt/mongodb4.2/shard3/log

mkdir /opt/mongodb4.2/shard3/wtdb

mkdir /opt/mongodb4.2/config

mkdir /opt/mongodb4.2/config/log

mkdir /opt/mongodb4.2/config/wtdb

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#准备 sh 文件放到根目录 /opt/mongodb4.2下

#准备 mongod.conf 放到对应节点的（mongos,config,shardxx）文件夹下

##这个偷懒用

ln -s /opt/mongodb4.2/bin/mongo /user/bin/mongo

--cfStart.sh
--mgsStart.sh
--1shardStart.sh
--2shardStart.sh
--3shardStart.sh
--config
----mongod.conf
----log
----wtdb
--mongos
----mongod.conf
----log
----wtdb
--shard1
----mongod.conf
----log
----wtdb
--shard2
----mongod.conf
----log
----wtdb
--shard3
----mongod.conf
----log
----wtdb

conf 放到对应 config . mongos shard1 shard2 shard3 路径下

#keyFile 放到key 目录下

##也可以自己生成个,实际里面内容可以乱写的

openssl rand -base64 756 > ./keyFile.file chmod 400 ./keyFile.file

testtesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttesttest

#通用启动那个脚本

##注意修改路径，如果你需要新用户自己创建，并授权文件夹

 22 MONGO_USER=root
 23 MONGO_GROUP=root
 24 MONGO_HOME="/opt/mongodb4.2"

  1 #
  2 # init.d / servicectl compatibility (openSUSE)
  3 #
  4 if [ -f /etc/rc.status ]; then
  5     . /etc/rc.status
  6     rc_reset
  7 fi
  8 
  9 #
 10 # Source function library.
 11 #
 12 if [ -f /etc/rc.d/init.d/functions ]; then
 13     . /etc/rc.d/init.d/functions
 14 fi
 15 
 16 #
 17 #
 18 #
 19 #pids=("shard1" "shard2" "shard3" "config" "mongos")
 20 pids=("config")
 21 #
 22 MONGO_USER=root
 23 MONGO_GROUP=root
 24 MONGO_HOME="/opt/mongodb4.2"
 25 #
 26 mongod="$MONGO_HOME/bin/mongod"
 27 mongos="$MONGO_HOME/bin/mongos"
 28 
 29 #
 30 #
 31 #
 32 MAX_OPEN_FILES=65535
 33 MAX_MAP_COUNT=262144
 34 
 35 start() {
 36 
 37       ini
 38     echo "begin start"
 39     ulimit -f unlimited
 40     ulimit -t unlimited
 41     ulimit -v unlimited
 42     ulimit -n 64000
 43     ulimit -m unlimited
 44     ulimit -u 64000
 45     
 46     if [ -n "$MAX_OPEN_FILES" ]; then
 47         ulimit -n $MAX_OPEN_FILES
 48     fi
 49     if [ -n "$MAX_LOCKED_MEMORY" ]; then
 50         ulimit -l $MAX_LOCKED_MEMORY
 51     fi
 52     if [ -n "$MAX_MAP_COUNT" -a -f /proc/sys/vm/max_map_count ]; then
 53         sysctl -q -w vm.max_map_count=$MAX_MAP_COUNT
 54     fi    
 55     for pgName in ${pids[@]};  
 56     do  
 57         pidfile="$MONGO_HOME/$pgName/mongodb_$pgName.pid"
 58         pgLock=/var/lock/subsys/mongodb_$pgName 
 59         
 60         
 61         if [ -n "$pidfile" ] && [ ! -e "$pidfile" ]; then
 62             touch "$pidfile" && chown "$MONGO_USER":"$MONGO_GROUP" "$pidfile"
 63         fi
 64         echo $pidfile
 65         
 66         # CONF_FILE setting was removed
 67         pgConfigFile="$MONGO_HOME/$pgName/mongod.conf"
 68 
 69         if [ ! -f "$pgConfigFile" ]; then
 70             echo "pgConfigFile $pgName 没有找到配置文件 $pgConfigFile"
 71             exit 1
 72         fi
 73         OPTIONS=" -f $pgConfigFile"
 74     
 75         echo $mongod
 76                 echo $OPTIONS
 77 
 78         echo -n $"Starting mongod: "
 79         if [ "$pgName" = "mongos" ]; then
 80             echo "start mongos --0"    
 81             daemon --user "$MONGO_USER" --check $mongos "$NUMACTL $mongos $OPTIONS >/dev/null 2>&1"            
 82         else
 83             daemon --user "$MONGO_USER" --check $mongod "$NUMACTL $mongod $OPTIONS >/dev/null 2>&1"
 84         fi
 85         RETVAL=$?
 86         echo
 87         [ $RETVAL -eq 0 ] && touch $pgLock    
 88     done 
 89 }
 90 
 91 stop() {
 92     for pgName in ${pids[@]};  
 93     do  
 94         pidfile="$MONGO_HOME/$pgName/mongod_$pgName.pid"
 95         pgLock=/var/lock/subsys/mongodb_$pgName     
 96         
 97 
 98         echo $pidfile
 99         # stop it here, often "killproc $prog"
100         pgId=`cat $pidfile`
101         echo -n "Stopping MongoDB server id= $pgId" 
102         if [ ! -z "$pgId" ]; then     
103             kill -15 $pgId  
104             echo -n "Stopped -----> $pgId" 
105         fi
106         retval=$?
107         echo
108         [ $retval -eq 0 ] && rm -f $pgLock
109     done 
110 }
111 
112 restart () {
113     stop
114     start
115 }
116 
117 stopall()
118 {
119      MONGOPID=`ps -ef | grep 'mongod' | grep -v grep | awk '{print $2}'`  
120      #echo "$MONGOPID"
121      echo -n "Stopping MongoDB server"   
122      if [ ! -z "$MONGOPID" ]; then     
123          kill -15 $MONGOPID  
124          echo -n "Stopped -----> $MONGOPID" 
125      fi   
126   RETVAL=$?
127   echo
128   [ $RETVAL -eq 0 ] && rm -f $MONGO_LCOK
129 }
130 
131 ini(){
132 ###
133     echo "ini"
134     if [ -d /sys/kernel/mm/transparent_hugepage ]; then
135       thp_path=/sys/kernel/mm/transparent_hugepage
136     elif [ -d /sys/kernel/mm/redhat_transparent_hugepage ]; then
137       thp_path=/sys/kernel/mm/redhat_transparent_hugepage
138     else
139       return 0
140     fi
141  
142     echo 'never' > ${thp_path}/enabled
143     echo 'never' > ${thp_path}/defrag
144  
145     re='^[0-1]+$'
146     if [[ $(cat ${thp_path}/khugepaged/defrag) =~ $re ]]
147     then
148       # RHEL 7
149       echo 0  > ${thp_path}/khugepaged/defrag
150     else
151       # RHEL 6
152       echo 'no' > ${thp_path}/khugepaged/defrag
153     fi
154  
155     unset re
156     unset thp_path
157     
158         # disable NUMA
159         sysctl -w vm.zone_reclaim_mode=0
160 ###
161 }
162 RETVAL=0
163 
164 case "$1" in
165   start)
166     start
167     ;;
168   stop)
169     stop
170     ;;
171   stopall)
172     stopall
173     ;;
174   restart|reload|force-reload)
175     restart
176     ;;
177   condrestart)
178     [ -f $MONGO_LCOK ] && restart || :
179     ;;
180   status)
181     status $mongod
182     RETVAL=$?
183     ;;
184   *)
185     echo "Usage: $0 {start|stop|status|restart|reload|force-reload|condrestart}"
186     RETVAL=1
187 esac
188 
189 exit $RETVAL

#config

##cfStart.sh

修改启动脚本底20行改成

"config"

##对应配置文件

## 配置文件内容
systemLog:
  destination: file
  path: "/opt/mongodb4.2/config/log/mongod.log"
storage:
  dbPath: "/opt/mongodb4.2/config/db"
net:
  bindIp: 0.0.0.0
  port: 21000
processManagement: 
  fork: true
  pidFilePath: "/opt/mongodb4.2/config/mongod_config.pid"
sharding: 
  clusterRole: configsvr
##如果需要修改
replication:
  replSetName: cfgSet
###key
security:
   keyFile: "/opt/mongodb4.2/key/keyFile.key"
   authorization: enabled

View Code

#mongos

##对应 mongos 路径

##mgsStart.sh

修改启动脚本底20行改成
"mongos"

##对应配置文件

注意修改和上面的名称和config 地址一致

configDB: cfgSet/172.30.1.237:21000,172.30.1.238:21000,172.30.1.239:21000

## 配置文件内容
systemLog:
  destination: file
  path: "/opt/mongodb4.2/mongos/log/mongos.log"
net:
  port: 62222
processManagement: 
  fork: true
  pidFilePath: "/opt/mongodb4.2/mongos/mongod_mongos.pid"
##注意修改下面的ip地址
sharding: 
  configDB: cfgSet/172.30.1.237:21000,172.30.1.238:21000,172.30.1.239:21000
#sharding:
#   configDB: 10.210.74.170:21000
###key
security:
   keyFile: "/opt/mongodb4.2/key/keyFile.key"

View Code

#shard1

##1shardStart.sh

对应 shard1 路径

修改启动脚本底20行改成
"shard1"

##对应通用配置文件

注意修改存储路径

## 配置文件内容
systemLog:
  destination: file
  path: "/opt/mongodb4.2/shard1/log/mongod.log"
processManagement:
  fork: true
  pidFilePath: "/opt/mongodb4.2/shard1/mongod_shard1.pid"
net:
  port: 27001
storage:
##journal配置
 journal:
  enabled: true
##数据文件存储位置
 dbPath: "/opt/mongodb4.2/shard1/wtdb"
##是否一个库一个文件夹
 directoryPerDB: true
##数据引擎
 engine: wiredTiger
##WT引擎配置
 wiredTiger:
  engineConfig:
##WT最大使用cache（根据服务器实际情况调节）
   cacheSizeGB: 6
##是否将索引也按数据库名单独存储
   directoryForIndexes: true
##表压缩配置
  collectionConfig:
   blockCompressor: zlib
##索引配置
  indexConfig:
   prefixCompression: true
replication:
  replSetName: "shard01"
sharding:
  clusterRole: shardsvr
###key
security:
   keyFile: "/opt/mongodb4.2/key/keyFile.key"
   authorization: enabled

View Code

#注意打开每个配置文件，让其他ip可以访问

net:
   bindIp: 0.0.0.0

##其他修改share1 里面

1、数字

2、端口

3、数据库的存储路径

##注意修改mongos 配置文件里面

的config ip地址

##先启动 config

./cfStart.sh start

##配置集群

###进入

./bin/mongo localhost:21000

###找任意一台config

cfg = {_id : "cfgSet", configsvr: true,members : [{_id : 0, host : "172.30.1.237:21000" },{_id : 1, host : "172.30.1.238:21000" },{_id : 2, host : "172.30.1.239:21000" }]};
rs.initiate(cfg);

### 找台机器

####这个必须弄哦，忘记掉要死人的。

use admin
db.createUser({user: "admin",pwd: "123456",roles: [ { role: "userAdminAnyDatabase", db: "admin" }, "readWriteAnyDatabase" ]})
db.auth("admin","123456");
db.createUser({user: "root",pwd: "123456",roles: [ { role: "root", db: "admin" } ]})

##其他机器按照上面顺序重复，启动shard01 到 shard03

./1shardStart.sh

###特别权限不要忘记弄

cfg = {_id : "shard01",members : [
{_id : 0, host : "172.30.1.237:27001",arbiterOnly:true ,"priority":0 },
{_id : 1, host : "172.30.1.238:27001","priority":3},
{_id : 2, host : "172.30.1.239:27001" ,"priority":2}
]};
rs.initiate(cfg);
 
cfg = {_id : "shard02",members : [
{_id : 0, host : "172.30.1.237:27002","priority":2 },
{_id : 1, host : "172.30.1.238:27002",arbiterOnly:true ,"priority":0 },
{_id : 2, host : "172.30.1.239:27002" ,"priority":3}
]};
rs.initiate(cfg);
 
 
cfg = {_id : "shard03",members : [
{_id : 0, host : "172.30.1.237:27003","priority":3},
{_id : 1, host : "172.30.1.238:27003","priority":2},
{_id : 2, host : "172.30.1.239:27003" ,arbiterOnly:true ,"priority":0 }
]};
rs.initiate(cfg);

#现在启动mongos

./mgStart.shcfg = {_id : " cfgSet ", configsvr: true,members : [{_id : 0, host : " 172.30.1.237:62222 " },{_id : 1, host : " 172.30.1.238:62222 " },{_id : 2, host : " 172.30.1.239:62222 " }]}; rs.initiate(cfg);

 
use admin
db.auth("root","123456")
#我是逐个添加的
sh.addShard("shard01/172.30.1.237:27001")
sh.addShard("shard01/172.30.1.238:27002")
...
...
sh.addShard("shard03/172.30.1.239:27009" )

#下面这个一次全部添加的没有成功，不知道为啥
sh.addShard("shard01/172.30.1.237:27001,172.30.1.238:27001,172.30.1239:27001")
sh.addShard("shard02/172.30.1237:27002,172.30.1.238:27002,172.30.1.239:27002")
sh.addShard("shard03/172.30.1.237:27003,172.30.1.238:27003,172.30.1.239:27003")

centos7下mongodb4集群安装

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