一、系統及安裝說明
系統：CentOS6.x_x64，mongodb-3.4.10。mongodb官方下載地址 https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-rhel62-3.4.10.tgz。本次安裝選擇編輯yum安裝。
二、配置官方yum庫
1>創建yum安裝庫文件
#vim /etc/yum.repos.d/mongodb-org-3.4.repo #創建之後可以直接使用yum安裝 [mongodb-org-3.4] name=MongoDB Repository baseurl=https://repo.mongodb.org/yum/redhat/$releasever/mongodb-org/3.4/x86_64/ gpgcheck=1 enabled=1 gpgkey=https://www.mongodb.org/static/pgp/server-3.4.asc
當設置gpgcheck=0時，gpgkey路徑可以不設置
2>yum安裝
#yum install -y mongodb-org #當出現以下即爲安裝中 updates/primary_db | 5.3 MB 00:01 Resolving Dependencies --> Running transaction check ---> Package mongodb-org.x86_64 0:3.4.10-1.el6 will be installed --> Processing Dependency: mongodb-org-tools = 3.4.10 for package: mongodb-org-3.4.10-1.el6.x86_64 --> Processing Dependency: mongodb-org-shell = 3.4.10 for package: mongodb-org-3.4.10-1.el6.x86_64 --> Processing Dependency: mongodb-org-server = 3.4.10 for package: mongodb-org-3.4.10-1.el6.x86_64 --> Processing Dependency: mongodb-org-mongos = 3.4.10 for package: mongodb-org-3.4.10-1.el6.x86_64 --> Running transaction check ---> Package mongodb-org-mongos.x86_64 0:3.4.10-1.el6 will be installed ---> Package mongodb-org-server.x86_64 0:3.4.10-1.el6 will be installed ---> Package mongodb-org-shell.x86_64 0:3.4.10-1.el6 will be installed ---> Package mongodb-org-tools.x86_64 0:3.4.10-1.el6 will be installed --> Finished Dependency Resolution Dependencies Resolved ===================================================================================================================================================================================================================================================================== Package Arch Version Repository Size ===================================================================================================================================================================================================================================================================== Installing: mongodb-org x86_64 3.4.10-1.el6 mongodb-org-3.4 5.8 k Installing for dependencies: mongodb-org-mongos x86_64 3.4.10-1.el6 mongodb-org-3.4 12 M mongodb-org-server x86_64 3.4.10-1.el6 mongodb-org-3.4 20 M mongodb-org-shell x86_64 3.4.10-1.el6 mongodb-org-3.4 11 M mongodb-org-tools x86_64 3.4.10-1.el6 mongodb-org-3.4 49 M Transaction Summary ===================================================================================================================================================================================================================================================================== Install 5 Package(s) Total size: 91 M Total download size: 69 M Installed size: 258 M Downloading Packages: (1/2): mongodb-org-server-3.4.10-1.el6.x86_64.rpm | 20 MB 00:03 (2/2): mongodb-org-tools-3.4.10-1.el6.x86_64.rpm | 49 MB 00:15 --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Total 3.4 MB/s | 69 MB 00:19
三、自定義安裝配置
1>安裝成功後，數據和日誌目錄默認是在 /var/lib/mongo 和 /var/log/mongodb，爲方便管理我們可進行自定義。以 /data/mongodb 爲例
2>編輯/etc/mongod.conf
#vim /etc/mongod.conf # mongod.conf # for documentation of all options, see: # http://docs.mongodb.org/manual/reference/configuration-options/ # where to write logging data. systemLog: destination: file logAppend: true path: /data/mongodb/log/mongod.log # Where and how to store data. storage: dbPath: /data/mongodb/data journal: enabled: true # engine: # mmapv1: # wiredTiger: # how the process runs processManagement: fork: true # fork and run in background pidFilePath: /var/run/mongodb/mongod.pid # location of pidfile # network interfaces net: port: 27017 bindIp: 127.0.0.1 # Listen to local interface only, comment to listen on all interfaces. #security: #operationProfiling: #replication: #sharding: ## Enterprise-Only Options #auditLog: #snmp
3>創建目錄
#mkdir -p /data/mongodb/data #mkdir -p /data/mongodb/log #chown mongod.mongod /data/mongodb -R #修改權限，否則mongo有可能啓動不了
四、啓動並測試
1>啓動mongod
#service mongod start|stop|restart
2>添加到開機啓動項
#chkconfig --add mongod #chkconfig mongod on
3>登錄測試
#mongo --host 127.0.0.1 MongoDB shell version v3.4.10 connecting to: mongodb://127.0.0.1:27017/ MongoDB server version: 3.4.10 Server has startup warnings: 2017-12-06T10:41:30.462+0800 I STORAGE [initandlisten] 2017-12-06T10:41:30.462+0800 I STORAGE [initandlisten] ** WARNING: Using the XFS filesystem is strongly recommended with the WiredTiger storage engine 2017-12-06T10:41:30.462+0800 I STORAGE [initandlisten] ** See http://dochub.mongodb.org/core/prodnotes-filesystem 2017-12-06T10:41:30.901+0800 I CONTROL [initandlisten] 2017-12-06T10:41:30.902+0800 I CONTROL [initandlisten] ** WARNING: Access control is not enabled for the database. 2017-12-06T10:41:30.902+0800 I CONTROL [initandlisten] ** Read and write access to data and configuration is unrestricted. 2017-12-06T10:41:30.902+0800 I CONTROL [initandlisten] 2017-12-06T10:41:30.902+0800 I CONTROL [initandlisten] 2017-12-06T10:41:30.902+0800 I CONTROL [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/enabled is 'always'. 2017-12-06T10:41:30.902+0800 I CONTROL [initandlisten] ** We suggest setting it to 'never' 2017-12-06T10:41:30.902+0800 I CONTROL [initandlisten] 2017-12-06T10:41:30.902+0800 I CONTROL [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/defrag is 'always'. 2017-12-06T10:41:30.902+0800 I CONTROL [initandlisten] ** We suggest setting it to 'never' 2017-12-06T10:41:30.902+0800 I CONTROL [initandlisten] 2017-12-06T10:41:30.902+0800 I CONTROL [initandlisten] ** WARNING: soft rlimits too low. rlimits set to 1024 processes, 65535 files. Number of processes should be at least 32767.5 : 0.5 times number of files. 2017-12-06T10:41:30.902+0800 I CONTROL [initandlisten] > show dbs admin 0.000GB local 0.000GB >
五、問題排錯
1> 登錄mongodb數據庫時，如果出現以下錯誤
MongoDB shell version v3.4.10 connecting to: mongodb://127.0.0.1:27017 MongoDB server version: 3.4.10 Server has startup warnings: 2017-12-06T10:46:46.575+0800 I STORAGE [initandlisten] 2017-12-06T10:46:46.575+0800 I STORAGE [initandlisten] ** WARNING: Using the XFS filesystem is strongly recommended with the WiredTiger storage engine 2017-12-06T10:46:46.575+0800 I STORAGE [initandlisten] ** See http://dochub.mongodb.org/core/prodnotes-filesystem 2017-12-06T10:46:46.955+0800 I CONTROL [initandlisten] 2017-12-06T10:46:46.955+0800 I CONTROL [initandlisten] ** WARNING: Access control is not enabled for the database. 2017-12-06T10:46:46.955+0800 I CONTROL [initandlisten] ** Read and write access to data and configuration is unrestricted. 2017-12-06T10:46:46.955+0800 I CONTROL [initandlisten] 2017-12-06T10:46:46.956+0800 I CONTROL [initandlisten] 2017-12-06T10:46:46.956+0800 I CONTROL [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/enabled is 'always'. 2017-12-06T10:46:46.956+0800 I CONTROL [initandlisten] ** We suggest setting it to 'never' 2017-12-06T10:46:46.956+0800 I CONTROL [initandlisten] 2017-12-06T10:46:46.956+0800 I CONTROL [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/defrag is 'always'. 2017-12-06T10:46:46.956+0800 I CONTROL [initandlisten] ** We suggest setting it to 'never' 2017-12-06T10:46:46.956+0800 I CONTROL [initandlisten] 2017-12-06T10:46:46.956+0800 I CONTROL [initandlisten] ** WARNING: soft rlimits too low. rlimits set to 1024 processes, 65535 files. Number of processes should be at least 32767.5 : 0.5 times number of files.
環境不通解決辦法也不通，詳情請參照官方文檔 https://docs.mongodb.com/manual/tutorial/transparent-huge-pages/
2>創建腳本
# vim /etc/init.d/disable-transparent-hugepages
#!/bin/bash### BEGIN INIT INFO
# Provides: disable-transparent-hugepages
# Required-Start: $local_fs
# Required-Stop:
# X-Start-Before: mongod mongodb-mms-automation-agent
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Disable Linux transparent huge pages
# Description: Disable Linux transparent huge pages, to improve
# database performance.
### END INIT INFO
case $1 in
start)
if [ -d /sys/kernel/mm/transparent_hugepage ]; then
thp_path=/sys/kernel/mm/transparent_hugepage elif [ -d /sys/kernel/mm/redhat_transparent_hugepage ]; then
thp_path=/sys/kernel/mm/redhat_transparent_hugepage else
return 0
fi
echo 'never' > ${thp_path}/enabled echo 'never' > ${thp_path}/defrag re='^[0-1]+$'
if [[ $(cat ${thp_path}/khugepaged/defrag) =~ $re ]]
then
# RHEL 7
echo 0 > ${thp_path}/khugepaged/defrag else
# RHEL 6
echo 'no' > ${thp_path}/khugepaged/defrag fi
unset re unset thp_path ;;
esac添加到開機服務
#chmod +x /etc/init.d/disable-transparent-hugepages #chkconfig --add disable-transparent-hugepages
3>創建編輯 /etc/tune-profiles/no-thp/ktune.sh
#vim /etc/tune-profiles/no-thp/ktune.sh
#echo "set_transparent_hugepages never" > ktune.sh #chmod +x ktune.sh #tuned-adm profile no-thp #如果提示找不到命令請執行yum install tuned -y
#vim /etc/security/limits.conf
添加
mongod soft nofile 64000 mongod hard nofile 64000 mongod soft nproc 32000 mongod hard nproc 32000
重啓系統 sudo reboot