[SERVER-20893] Upgrade to latest version of MongoDB Created: 13/Oct/15  Updated: 13/Oct/15  Resolved: 13/Oct/15

Status: Closed
Project: Core Server
Component/s: Admin
Affects Version/s: None
Fix Version/s: None

Type: Question Priority: Major - P3
Reporter: Sandeep Parippil Krishnankutty Assignee: Unassigned
Resolution: Done Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Participants:

 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. ?



 Comments   
Comment by Ramon Fernandez Marina [ 13/Oct/15 ]

Thanks for your report sparippi. Please note that the SERVER project is for reporting bugs or feature suggestions for the MongoDB server. For MongoDB-related support discussion please post on the mongodb-user group or Stack Overflow with the mongodb tag, where your question will reach a larger audience. A question like this involving more discussion would be best posted on the mongodb-user group. See also our Technical Support page for additional support resources.

Regards,
Ramón.

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