From: Leif Ryge Date: Fri, 21 Jun 2013 11:07:43 +0000 (+0000) Subject: update peers.preferred docs re: Node Keys X-Git-Url: https://git.rkrishnan.org/pb.xhtml?a=commitdiff_plain;h=refs%2Fpull%2F128%2Fhead;p=tahoe-lafs%2Ftahoe-lafs.git update peers.preferred docs re: Node Keys --- diff --git a/docs/configuration.rst b/docs/configuration.rst index 79272a41..6dfd2ffd 100644 --- a/docs/configuration.rst +++ b/docs/configuration.rst @@ -388,13 +388,20 @@ Client Configuration ``peers.preferred = (string, optional)`` - This is an optional comma-separated list of storage server node IDs that - will be tried first when selecting storage servers for reading or writing. - - Every selected node, preferred or not, will still receive the same number - of shares (one, if there are ``N`` or more servers accepting uploads). - Preferred nodes are simply moved to the front of the server selection lists - computed for each file. + This is an optional comma-separated list of Node IDs of servers that will + be tried first when selecting storage servers for reading or writing. + + Servers should be identified here by their Node ID as it appears in the web + ui, underneath the server's nickname. For storage servers running tahoe + versions >=1.10 (if the introducer is also running tahoe >=1.10) this will + be a "Node Key" (which is prefixed with 'v0-'). For older nodes, it will be + a TubID instead. When a preferred server (and/or the introducer) is + upgraded to 1.10 or later, clients must adjust their configs accordingly. + + Every node selected for upload, whether preferred or not, will still + receive the same number of shares (one, if there are ``N`` or more servers + accepting uploads). Preferred nodes are simply moved to the front of the + server selection lists computed for each file. This is useful if a subset of your nodes have different availability or connectivity characteristics than the rest of the grid. For instance, if