Comments (3)
Thanks, Bela.
I plan on following the approach you suggested in creating the ELECTION2
, asserting the PartialConnectivityTest
is catching the issue (and working with the fix), and in addition:
- Extend some tests to cover both election protocols;
- Include an operation to start the voting thread. Focused for operators, an easier way for manual intervention.
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Hi Jose
implementing the prevoting, as discussed in Diego's thesis in ch. 9.6, sounds like a good plan.
Modeling the faults in PartialConnectivityTest
first is critical IMO, then implementing prevoting and making sure the previously failing test now passes.
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Given that partial connectivity is the edge case, and not the norm, I suggest creation of an ELECTION2
protocol, perhaps extracting the common functionality into an Election
class, and making ELECTION
and ELECTION2
extend it.
Alternatively, allow users to configure whether or not they want a prevoting phase: some users may not want this as patial connectivity will not occur in their networks, or - if it does occur - they're willing to allow for manual intervention.
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Related Issues (20)
- Add membership operations to RaftHandle
- Provide quorum reads for `ReplicatedStateMachine`
- `Client` and `ClientStub` issues during membership operations
- can't remove leader by method of RaftHandle's removeServer HOT 9
- this.raftHandle.channel().disconnect() and reconnect trigger error "not found in retransmission table" HOT 7
- Questions HOT 2
- Ensure a single leader per term
- Configurable class loader for ReplicatedStateMachine block
- CounterTest.testIgnoreReturnValue test failure HOT 5
- Remove ant and use only maven HOT 2
- Restarting node after membership change
- Leader stepping down with membership change HOT 2
- Fix longest log check during election
- Liveness issue joining during election thread execution
- Concurrency issue leads to nodes voting twice in same term
- Election problem HOT 2
- The election process may elect a leader who has left the group HOT 7
- Leader left before the coordinator apply the election result HOT 5
- Multiple LevelDB instances in same process will cause a .sst file being locked HOT 5
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