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  1. Core Server
  2. SERVER-20893

Upgrade to latest version of MongoDB

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    Description

      Hi,

      We are currently on V 2.2.4 of MongoDB and is planning for an upgrade to 3.0. The recommended upgrade process that I could see from the wiki is

      2.2.4->2.4->2.6->3.0.6

      We would like to upgrade with minimum disruption to our live system. We would also like to fall back to our existing version quickly in the event of a critical issue during update.

      We currently have 3 MongoDb servers(VM's) in replica setup.

      The plan we have worked out is to

      > Take Snapshot of Mongo Server 01 (on version 2.2.4)
      > Power Off Mongo Server 02 and Mongo Server 03
      > Upgrade Mongo Server 01 to version 2.4
      > Provision new servers Mongo Server 04 and Mongo Server 05 to the replica set both on version 2.4
      > Upgrade the now version 2.4 cluster to version 2.6
      > Upgrade the now 2.6 cluster to version 3.0.6
      >Remove MongoServer 02 and Mongo Server 03 from replica set

      In the event off failure

      > Shutdown Mongo Server 04 and Mongo Server 05
      >Restore Snapshot of Mongo Server 01 and Power on Mongo Server 02 and Mongo Server 03

      Can you see any issues with this upgrade plan. ?

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            Unassigned Unassigned
            sparippi Sandeep Parippil Krishnankutty
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