Configuration

MongoDB Configuration Configuration File Location Linux: /etc/mongod.conf

Windows: C:\Program Files\MongoDB\Server\8.0\bin\mongod.cfg

macOS: /usr/local/etc/mongod.conf

Basic Configuration

yaml

# mongod.conf
storage:
  dbPath: /var/lib/mongodb
  journal:
    enabled: true
  wiredTiger:
    engineConfig:
      cacheSizeGB: 2
systemLog:
  destination: file
  logAppend: true
  path: /var/log/mongodb/mongod.log
net:
  port: 27017
  bindIp: 127.0.0.1
processManagement:
  fork: true
  pidFilePath: /var/run/mongodb/mongod.pid
security:
  authorization: enabled

Security Configuration

yaml

security:
  authorization: enabled
  keyFile: /etc/ssl/mongodb-keyfile
  clusterAuthMode: keyFile
net:
  ssl:
    mode: requireSSL
    PEMKeyFile: /etc/ssl/mongodb.pem
    CAFile: /etc/ssl/ca.pem

Performance Tuning

yaml

storage:
  wiredTiger:
    engineConfig:
      cacheSizeGB: 8
      journalCompressor: snappy
      directoryForIndexes: true
    collectionConfig:
      blockCompressor: snappy
    indexConfig:
      prefixCompression: true
operationProfiling:
  slowOpThresholdMs: 100
  mode: slowOp