[SERVER-12386] Use of arbiters prevents fault-tolerant w:majority writes Created: 16/Jan/14  Updated: 10/Dec/14  Resolved: 07/Apr/14

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

Type: Bug Priority: Major - P3
Reporter: Eric Milkie Assignee: Unassigned
Resolution: Duplicate Votes: 1
Labels: majority
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Duplicate
duplicates SERVER-13070 Including arbiters when calculating r... Closed
Related
is related to SERVER-7681 Report majority number in ReplSetGetS... Closed
Operating System: ALL
Participants:

 Description   

For the purposes of w:majority, the majority calculation includes arbiters. Since arbiters do not store a copy of the data, they will never report that they have successfully replicated the write in question. This makes it difficult to design fault-tolerant clusters that utilize multiple datacenters without having extra data-bearing nodes.


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