[tahoe-dev] Dual Introducer Scenario 1

[M O Faruque Sarker]

Hi Zooko and all,

I've drawn a simple scenario of dual introducers. Attached figure
should be self-explanatory.
Do you recommend me to append it with ticket #68 or create a new page for it ?

This simple scenario/use-case shows what might happen if nodes
Client1,2, 3 are configured to talk to two introducers: X and Y. If Y
goes down and in that down period one example new node (client4) joins
it is obvious that all other nodes will know about newly joining node
through X.

But what will happen if X goes down and Y becomes up again and client4
also goes down ? Without the existence of Y it is seen that nodes will
contain outdated information as seen in Snapshot B. However, Snapshot
C shows that disappearance of client4 can be updated to Client1,2, 3
by Y.

Please make your comments/suggestions on this scenario or anything else.

The link to the image is also here:
http://docs.google.com/View?id=dghk872r_69dxdp8gcd

Thanks,
Faruq
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