[SERVER-22924] MongoDB upgrade problem (2.4 > 2.6) Created: 02/Mar/16  Updated: 02/Mar/16  Resolved: 02/Mar/16

Status: Closed
Project: Core Server
Component/s: Admin
Affects Version/s: 2.6.1, 2.6.2, 2.6.8, 2.6.11
Fix Version/s: None

Type: Bug Priority: Major - P3
Reporter: Sébastien Gay Assignee: Unassigned
Resolution: Done Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Attachments: Text File log_after_mongoDB2.6_upgrade.txt     Text File mongodb2.4_mongostats.txt    
Operating System: Linux
Steps To Reproduce:

Upgrade one member of a replica to mongoldb 2.6
When the server is uptodate, the load average and the number of connections increase

Participants:

 Description   

Hello

Since few months i try to upgrade MongoDB from 2.4 to 2.6 and I have problems.

I have tried some 2.6 versions

  • Load average problem
  • Lock increase ( < 3% in 2.4 and > 10% in 2.6 )
  • The connections are not closed
    In Mongo 2.4 everything work fine

My Configuration :
3 servers in ReplicaSet

OS: Debian Wheezy 64bit
Data size: 26GB

I have tried to upgrade one server or the 3 servers in the same time
For the upgrade, i'm using :
https://docs.mongodb.org/manual/release-notes/2.6-upgrade/

I can't find any information in logs.

Configuration used for 2.6 upgrade :

dbpath=/home/data/db/
logpath=/var/log/mongodb/mongodb.log
logappend=true
port = 10001
cpu = true
replSet = replset

The configuration does not change between upgrades
Servers have the necessary resource (No swap, ...)
We tried to upgrade the drivers for applications that connect to MongoDB but there is no change.

Do you have an idea ?



 Comments   
Comment by Ramon Fernandez Marina [ 02/Mar/16 ]

Thanks for your report sg@novetys.com. 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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