= On Fri, Nov 1, 2013 at 5:07 AM, Rakesh Rajan wrote:

1) By alternating racks, do you mean to alternate racks between all nodes = in a single DC v/s multiple DCs? AWS EastCoast has 4 AZs and=A0Singapore=A0= has=A02 AZs. So is the final solution something like this:=A0
ip11 = - East Coast -=A0m1.xlarge / us-eas= t-1b =A0 =A0 =A0 =A0 - Token: 0
ip21 - Singapore =A0-=A0m1.xlarg= e / ap-southeast-1a=A0- Token: 1001=
ip12 - Eas= t Coast -=A0m1.xlarge / us-east-= 1c =A0 =A0 =A0 =A0 - Token:=A028356863910078205288614550619314017621
ip13 - Eas= t Coast -=A0m1.xlarge / us-east-= 1d =A0 =A0 =A0 =A0 - Token:=A056713727820156410577229101238628035241
ip22 -=A0<= /span>Singapore= =A0=A0-= =A0m1.xlarge / ap-south= east-1b=A0- Token:=A056713727820156= 410577229101238628036241
ip14 - East Coast -=A0m1.xlarge = / us-east-1a =A0 =A0 =A0 =A0 - Token:=A08507059173023461586584365185= 7942052863
ip15 - East Coast -=A0m1.xlarge = / us-east-1b =A0 =A0 =A0 =A0 - Token:=A01134274556403128211544582024= 77256070484
ip23 -=A0Singapore=A0 -=A0m1.xlarge /=A0<= span style=3D"font-family:arial,sans-serif">ap-southeast-1a=A0- Token:=A0113427455640312821154458202477= 256071484
ip16 - East Coast -=A0m1.xlarge = / us-east-1c =A0 =A0 =A0 =A0 - Token:=A01417843195503910264430727530= 96570088105

Is this what you had suggested?=A0

That would be more balanced than your current setup, but= it would still be unbalanced, especially the ap-southeast DC.=A0 To have a= perfectly balanced cluster with multiple racks, you need to a) have the sa= me number of nodes on each rack, and b) alternate racks within each DC.=A0 = Your new layout would meet requirement (b), but not (a).=A0 This is why I s= uggest using the same rack for all nodes.

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Tyler Hobbs
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