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Feature #3249

Efficient access in distributed data centers

Added by Matthias Urlichs over 11 years ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
-
Target version:
-
% Done:

0%

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Description

As I understand it, in Ceph one can cluster storage nodes, but otherwise every node is essentially identical.

This is not true in a distributed data center. Or even in a multi-rack situation.
I want to prefer accessing nodes which are "local".
The client in rack A should prefer to read from the storage nodes that are also in rack A.
Ditto for rack B.
Ditto for s/rack/data center/.

As far as I understand, the Ceph clients (I care less about efficient internal communication) can't do that.
However, I think this would be an important feature for many high-reliability situations.

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