【mongodb.conf】

# 数据存储目录
dbpath=/var/lib/mongodb

# 日志文件存储目录
logpath=/var/log/mongodb/mongodb.log

logappend=true

# 监听地址及端口号
bind_ip = 127.0.0.1
port = 27017

# Enable journaling, http://www.mongodb.org/display/DOCS/Journaling
journal=true

# Enables periodic logging of CPU utilization and I/O wait
#cpu = true

# Turn on/off security.  Off is currently the default
#noauth = true
#auth = true

# Verbose logging output.
#verbose = true

# Inspect all client data for validity on receipt (useful for
# developing drivers)
#objcheck = true

# Enable db quota management
#quota = true

# Set op logging level where n is
#   0=off (default)
#   1=W
#   2=R
#   3=both
#   7=W+some reads
#oplog = 0

# Diagnostic/debugging option
#nocursors = true

# Ignore query hints
#nohints = true

# Disable the HTTP interface (Defaults to localhost:27018).
#nohttpinterface = true

# Turns off server-side scripting.  This will result in greatly limited
# functionality
#noscripting = true

# Turns off table scans.  Any query that would do a table scan fails.
#notablescan = true

# Disable data file preallocation.
#noprealloc = true

# Specify .ns file size for new databases.
# nssize = <size>
# Accout token for Mongo monitoring server.
#mms-token = <token>

# Server name for Mongo monitoring server.
#mms-name = <server-name>

# Ping interval for Mongo monitoring server.
#mms-interval = <seconds>

# Replication Options

# in replicated mongo databases, specify here whether this is a slave or master
#slave = true
#source = master.example.com

# Slave only: specify a single database to replicate
#only = master.example.com

# or
#master = true
#source = slave.example.com

# Address of a server to pair with.
#pairwith = <server:port>

# Address of arbiter server.
#arbiter = <server:port>

# Automatically resync if slave data is stale
#autoresync

# Custom size for replication operation log.
#oplogSize = <MB>

# Size limit for in-memory storage of op ids.
#opIdMem = <bytes>

# SSL options 
# Enable SSL on normal ports
#sslOnNormalPorts = true

# SSL Key file and password
#sslPEMKeyFile = /etc/ssl/mongodb.pem
#sslPEMKeyPassword = pass

【配置文件译文】

#日志文件位置（这些都是可以自定义修改的）
logpath=/data/db/journal/mongodb.log　　

# 以追加方式写入日志
logappend=true

# 是否以守护进程方式运行
fork = true

# 默认27017
#port = 27017

# 数据库文件位置
dbpath=/data/db

# 启用定期记录CPU利用率和 I/O 等待
#cpu = true

# 是否以安全认证方式运行，默认是不认证的非安全方式
#noauth = true
#auth = true

# 详细记录输出
#verbose = true

# Inspect all client data for validity on receipt (useful for
# developing drivers)用于开发驱动程序时验证客户端请求
#objcheck = true

# Enable db quota management
# 启用数据库配额管理
#quota = true
# 设置oplog记录等级
# Set oplogging level where n is
#   0=off (default)
#   1=W
#   2=R
#   3=both
#   7=W+some reads
#diaglog=0

# Diagnostic/debugging option 动态调试项
#nocursors = true

# Ignore query hints 忽略查询提示
#nohints = true

# 禁用http界面，默认为localhost：28017
#nohttpinterface = true

# 关闭服务器端脚本，这将极大的限制功能
# Turns off server-side scripting.  This will result in greatly limited
# functionality
#noscripting = true

# 关闭扫描表，任何查询将会是扫描失败
# Turns off table scans.  Any query that would do a table scan fails.
#notablescan = true

# 关闭数据文件预分配
# Disable data file preallocation.
#noprealloc = true

# 为新数据库指定.ns文件的大小，单位:MB
# Specify .ns file size for new databases.
# nssize =

# Replication Options 复制选项
# in replicated mongo databases, specify the replica set name here
#replSet=setname

# maximum size in megabytes for replication operation log
#oplogSize=1024

# path to a key file storing authentication info for connections
# between replica set members
#指定存储身份验证信息的密钥文件的路径
#keyFile=/path/to/keyfile