narendly commented on a change in pull request #1243:
URL: https://github.com/apache/helix/pull/1243#discussion_r468191812
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File path:
helix-core/src/main/java/org/apache/helix/participant/HelixCustomCodeRunner.java
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@@ -130,14 +147,23 @@ public void start() throws Exception {
StateMachineEngine stateMach = _manager.getStateMachineEngine();
stateMach.registerStateModelFactory(LEADER_STANDBY, _stateModelFty,
_resourceName);
- HelixZkClient zkClient = null;
+ RealmAwareZkClient zkClient = null;
try {
// manually add ideal state for participant leader using LeaderStandby
// model
- HelixZkClient.ZkClientConfig clientConfig = new
HelixZkClient.ZkClientConfig();
- clientConfig.setZkSerializer(new ZNRecordSerializer());
- zkClient = SharedZkClientFactory.getInstance()
- .buildZkClient(new HelixZkClient.ZkConnectionConfig(_zkAddr),
clientConfig);
+ if (Boolean.getBoolean(SystemPropertyKeys.MULTI_ZK_ENABLED) || _zkAddr
== null) {
Review comment:
The whole point of FederatedZkClient is not using a particular
ZkAddress, but rather rely on RealmAwareConnectionConfig to establish a
multi-zk connection, so this makes sense. The sharding key information is
included in the connection config.
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