TheR1sing3un commented on code in PR #6100:
URL: https://github.com/apache/rocketmq/pull/6100#discussion_r1113850833
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broker/src/main/java/org/apache/rocketmq/broker/controller/ReplicasManager.java:
##########
@@ -322,35 +438,150 @@ private boolean registerBrokerToController() {
}
}
+ /**
+ * Send GetNextBrokerRequest to controller for getting next assigning
brokerId in this broker-set
+ * @return next brokerId in this broker-set
+ */
+ private Long getNextBrokerId() {
+ try {
+ GetNextBrokerIdResponseHeader nextBrokerIdResp =
this.brokerOuterAPI.getNextBrokerId(this.brokerConfig.getBrokerClusterName(),
this.brokerConfig.getBrokerName(), this.controllerLeaderAddress);
+ return nextBrokerIdResp.getNextBrokerId();
+ } catch (Exception e) {
+ LOGGER.error("fail to get next broker id from controller", e);
+ return null;
+ }
+ }
+
+ /**
+ * Create temp metadata file in local file system, records the brokerId
and registerCheckCode
+ * @param brokerId the brokerId that is expected to be assigned
+ * @return whether the temp meta file is created successfully
+ */
+
+ private boolean createTempMetadataFile(Long brokerId) {
+ // generate register check code, format like that:
$ipAddress;$timestamp
+ String registerCheckCode = this.localAddress + ";" +
System.currentTimeMillis();
+ try {
+
this.tempBrokerMetadata.updateAndPersist(brokerConfig.getBrokerClusterName(),
brokerConfig.getBrokerName(), brokerId, registerCheckCode);
+ return true;
+ } catch (Exception e) {
+ LOGGER.error("update and persist temp broker metadata file
failed", e);
+ this.tempBrokerMetadata.clear();
+ return false;
+ }
+ }
+
+ /**
+ * Send applyBrokerId request to controller
+ * @return whether controller has assigned this brokerId for this broker
+ */
+ private boolean applyBrokerId() {
+ try {
+ ApplyBrokerIdResponseHeader response =
this.brokerOuterAPI.applyBrokerId(brokerConfig.getBrokerClusterName(),
brokerConfig.getBrokerName(),
+ tempBrokerMetadata.getBrokerId(),
tempBrokerMetadata.getRegisterCheckCode(), this.controllerLeaderAddress);
+ return true;
+
+ } catch (Exception e) {
+ LOGGER.error("fail to apply broker id: {}", e,
tempBrokerMetadata.getBrokerId());
+ return false;
+ }
+ }
Review Comment:
> response whether to determine?
`BrokerOuterAPI` will judge this response if successful.
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