| package memberlist |
| |
| // MergeDelegate is used to involve a client in |
| // a potential cluster merge operation. Namely, when |
| // a node does a TCP push/pull (as part of a join), |
| // the delegate is involved and allowed to cancel the join |
| // based on custom logic. The merge delegate is NOT invoked |
| // as part of the push-pull anti-entropy. |
| type MergeDelegate interface { |
| // NotifyMerge is invoked when a merge could take place. |
| // Provides a list of the nodes known by the peer. If |
| // the return value is non-nil, the merge is canceled. |
| NotifyMerge(peers []*Node) error |
| } |
