runzhiwang commented on a change in pull request #383:
URL: https://github.com/apache/incubator-ratis/pull/383#discussion_r551877531
##########
File path:
ratis-server/src/main/java/org/apache/ratis/server/impl/LeaderStateImpl.java
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@@ -905,6 +906,47 @@ private void yieldLeaderToHigherPriorityPeer() {
}
}
+ boolean isLeaderLeaseValid() {
+ if (checkLeaderLease()) {
+ return true;
+ }
+
+ updateLeaderLease();
+ return checkLeaderLease();
+ }
+
+ private boolean checkLeaderLease() {
+ return lastLeaderTimestamp.get().elapsedTimeMs() <
server.properties().leaderLeaseTimeoutMs();
+ }
+
+ private boolean updateLeaderLease() {
+ Timestamp startLease = Timestamp.currentTime();
+
+ List<RaftPeerId> activePeers = new ArrayList<>();
+ List<FollowerInfo> followerInfos = getFollowerInfos();
+ for (final FollowerInfo info : followerInfos) {
+ if (info.getLastRpcSendTimeWithResponse().elapsedTimeMs() <=
server.properties().leaderLeaseTimeoutMs()) {
+ if (startLease.compareTo(info.getLastRpcSendTimeWithResponse()) > 0) {
+ startLease = info.getLastRpcSendTimeWithResponse();
+ }
+ activePeers.add(info.getPeer().getId());
+ }
+ }
Review comment:
@szetszwo I agree with you. @GlenGeng what do you think ?
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