[SERVER-3214] Number of Config Servers Created: 07/Jun/11  Updated: 08/Dec/11  Resolved: 08/Jun/11

Status: Closed
Project: Core Server
Component/s: Admin
Affects Version/s: 1.8.0
Fix Version/s: None

Type: Question Priority: Minor - P4
Reporter: Dave Michaud Assignee: Unassigned
Resolution: Done Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Participants:

 Description   

Regarding the number of config servers documentation only talks about maximum 3 config server.
Can we have more than three?
If not why?

If yes, does that disable chunk management if one goes offline?
We have 2 data centers and want to hae 3 in each place.



 Comments   
Comment by Wedge Martin [ 08/Dec/11 ]

What happens if you bring up another config server and you already have 3? Will it break anything? We're just trying to migrate config servers over to other systems, and want to do it without downtime.

Comment by Eliot Horowitz (Inactive) [ 08/Jun/11 ]

You can only have 3 right now.
The main reason is that all writes are down with a 2 phase commit, and doing that on more than 3 is very expensive.

We've talked about using a replica set for the config servers, but unclear where we'll go. See SERVER-1448

Generated at Thu Feb 08 03:02:26 UTC 2024 using Jira 9.7.1#970001-sha1:2222b88b221c4928ef0de3161136cc90c8356a66.