Reusing raft/node id

[anshul...@docker.com]

I''m wondering what the motivation is to avoid reusing raft/node ids within a raft group. Appreciate the help!

[Oren Eini (Ayende Rahien)]

Part of the topology is the last node id, and I make sure to increment it.

Otherwise, use Guid

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On Fri, Aug 18, 2017 at 10:03 PM, anshul.pundir via raft-dev <raft...@googlegroups.com> wrote:

I''m wondering what the motivation is to avoid reusing raft/node ids within a raft group. Appreciate the help!

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[Henrik Ingo]

If you added a node to the cluster with an id that already existed in the cluster, how could other nodes know that it's not the same node?

For example, it would break the Raft protocol if there were 2 different votes cast in an election, both from the same id. Replication of the log would probably break too.

henrik

On Fri, Aug 18, 2017 at 10:03 PM, anshul.pundir via raft-dev <raft...@googlegroups.com> wrote:

I''m wondering what the motivation is to avoid reusing raft/node ids within a raft group. Appreciate the help!

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