Github user hanm commented on a diff in the pull request:
https://github.com/apache/zookeeper/pull/106#discussion_r115353405
--- Diff: src/java/main/org/apache/zookeeper/server/quorum/QuorumPeer.java
---
@@ -930,39 +918,36 @@ protected Election createElectionAlgorithm(int
electionAlgorithm){
//TODO: use a factory rather than a switch
switch (electionAlgorithm) {
- case 0:
- le = new LeaderElection(this);
- break;
- case 1:
- le = new AuthFastLeaderElection(this);
- break;
- case 2:
- le = new AuthFastLeaderElection(this, true);
- break;
- case 3:
- qcm = new QuorumCnxManager(this);
- QuorumCnxManager.Listener listener = qcm.listener;
- if(listener != null){
- listener.start();
- FastLeaderElection fle = new FastLeaderElection(this, qcm);
- fle.start();
- le = fle;
- } else {
- LOG.error("Null listener when initializing cnx manager");
- }
- break;
- default:
- assert false;
+ case 0:
+ assert false : "Leader election algorithm type 0 is not
supported anymore.";
--- End diff --
I like the idea of catching invalid electionAlg value when parsing config
file. Code updated by throwing an exception when input value is bad.
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