adoroszlai commented on code in PR #988:
URL: https://github.com/apache/ratis/pull/988#discussion_r1425909242
##########
ratis-server/src/main/java/org/apache/ratis/server/impl/ConfigurationManager.java:
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@@ -31,17 +34,29 @@
* entries.
*/
public class ConfigurationManager {
+ private final RaftPeerId id;
private final RaftConfigurationImpl initialConf;
private final NavigableMap<Long, RaftConfigurationImpl> configurations = new
TreeMap<>();
/**
* The current raft configuration. If configurations is not empty, should be
* the last entry of the map. Otherwise is initialConf.
*/
private volatile RaftConfigurationImpl currentConf;
+ /** Cache the peer corresponding to {@link #id}. */
+ private volatile RaftPeer currentPeer;
- ConfigurationManager(RaftConfigurationImpl initialConf) {
+ ConfigurationManager(RaftPeerId id, RaftConfigurationImpl initialConf) {
+ this.id = id;
this.initialConf = initialConf;
- this.currentConf = initialConf;
+ setCurrentConf(initialConf);
+ }
+
+ private void setCurrentConf(RaftConfigurationImpl currentConf) {
+ this.currentConf = currentConf;
+ final RaftPeer peer = currentConf.getPeer(id, RaftPeerRole.FOLLOWER,
RaftPeerRole.LISTENER);
+ if (peer != null) {
+ this.currentPeer = peer;
+ }
Review Comment:
Previously if the current conf did not have the peer, we'd fallback to
`getRaftServer().getPeer()`. But with the new code, `getCurrentPeer()` would
return the leftover `currentPeer` value.
Sorry if I'm misunderstanding something.
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