Perform MongoDB backups with performance throttling, exporting, archiving, compression and notifications.
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README.md

mongosback 0.91

mongosback is a mongodb backup script created to be easy to use yet flexible, used in production at Wildbit.com

Installation

Clone or download as zip from github, extract to directory. Set the main script as executable (chmod u+x mongosback.sh). Edit mongosback.conf with desired settings and execute from cron.

Upon running, you may provide the path to mongosback.conf by executing with "-f". Example:

./mongosback.sh -f /etc/mongosback.conf

Compatibility

Tested: Debian, CentOS, RHEL

Amazon S3

To use S3 backup, you'll need to install and configure the s3cmd tool:

  • sudo apt-get install s3cmd
  • s3cmd --configure Then add your bucket name and path to the .conf file.

Troubles? Detailed steps can be found here: link

Functionality
  • Archiving
    • keep several backups on-hand, delete after X days.
  • Performance throttling
    • mongodb can be quite resource intensive (IO in particular).
    • three performance throttles (low, normal, high).
    • reduces IO and CPU utilization, useful for backups on master mongo server.
  • Compression
    • perform gzip compression on backups, reducing space utilization.
    • tunable compression levels (fast, normal, best).
  • Simple backup
    • optional simple backup method to bypass compression, archiving and exporting.
      
    • useful if simple dumps are needed with performance throttling and erorr handling.
  • Exporting
    • automatically transfer latest backup to remote FTP or using SCP.
  • Logging
    • logging of all events to log file and optionally syslog.
    • debug mode, copies all mongodump output to debug file to determine failures.
    • calculates total run time and dump size to understand data growth impact.
  • E-mail notifications
    • get updated on successful or failed backup attempts.
    • includes run time and dump size, on-hand archives and target disk utilization.
  • Write locking
    • option to enable write locking on replicaSet slaves.
    • locks writes, performs backup, unlock writes (slave nodes only).
    • helps ensure a consistent state (also consider: --oplog option)
  • Configurability
    • changeable backup path
    • ability to set mongodump runtime options.
    • many others in configuration file.
  • General
    • creates pid file to prevent multiple startups.
    • traps errors caught, logs and optionally e-mails.
    • can be run as non root user
Note on mongoDB rights if using auth

User roles need to contain userAdmin because mongodump backup db.system.users. For now, there is no option to tell mongodump not backuping this users collection. Update: For MongoDB 2.6, user needs to have the backup and hostManager (for clusters) roles

license

GPL v3

contact

Russ Thompson (russ a@t linux.com). actively maintained, please submit issues or suggestions.