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Comment: updated with new installer capabilities

Table of Contents

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Which MongoDB version should be used?

As of December 2016 2018 we recommend version 3.0 or version 3.2 4 of MongoDB, and the WiredTiger storage engine.The installer in our most recent product releases offers to install version 3.0 of MongoDB for you if none is present on your server, and no manual configuration is required.

It is possible to continue to use MongoDB 2.6 for some certain products, but the 3.0 and 3.2 x versions bring in a number of important performance improvements and certain some products strictly require these capabilities. MongoDB 3.4 6 is not supported by our applications at this time, and version . Version 2.4 is supported only if the db_use_v26_features compatibility option is disabled and with much reduced performanceno longer supported.

Please see our Product Compatibility page for details regarding what product releases work (best) with which MongoDB versions. Some products support the compatibility configuration option db_use_v26_features, but that generally comes at the price of reduced efficiency and robustness.

Upgrades

Installation

The installer in our recent product releases offers to install version 3.4 of MongoDB for you if none is present on your server, and no manual configuration should be required.

Upgrades

If you do already have MongoDB 3.x on your system, then the installer (for opmantek application releases after Jan 2018) will offer to upgrade MongoDB to version 3.4 for you.

If you have MongoDB 2.x, then you will have to upgrade manually; For upgrading an existing MongoDB installation we HIGHLY RECOMMEND that you follow the official documentation for MongoDB upgrades

(for upgrades to 3.0,  for upgrades to 3.2 and finally for upgrades to 3.24)  - the two most critical aspects are

  • that you cannot skip major versions for  upgrades (i.e. from 2.4 you must upgrade to 2.6 first, then to 3.0, then to 3.2 and finally to 3.24) ,
  • and that you will have to must upgrade the MongoDB authorization scheme before 3.0 will work, as documented on this page.

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