rpuch commented on code in PR #4684:
URL: https://github.com/apache/ignite-3/pull/4684#discussion_r1832825354
##########
modules/replicator/src/main/java/org/apache/ignite/internal/replicator/ReplicaManager.java:
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@@ -1086,16 +1097,64 @@ private void idleSafeTimeSync() {
}
}
- private void sendSafeTimeSyncIfReplicaReady(CompletableFuture<Replica>
replicaFuture) {
- if (isCompletedSuccessfully(replicaFuture)) {
- Replica replica = replicaFuture.join();
+ private void sendSafeTimeSyncIfReplicaReady(CompletableFuture<Replica>
replicaFuture, HybridTimestamp proposedSafeTime) {
+ if (!isCompletedSuccessfully(replicaFuture)) {
+ return;
+ }
- ReplicaSafeTimeSyncRequest req =
REPLICA_MESSAGES_FACTORY.replicaSafeTimeSyncRequest()
- .groupId(toReplicationGroupIdMessage(replica.groupId()))
- .build();
+ Replica replica = replicaFuture.join();
- replica.processRequest(req, localNodeId);
+ if (!shouldAdvanceIdleSafeTime(replica, proposedSafeTime)) {
+ // If previous attempt might still be waiting on the Metastorage
SafeTime, we should not send the command ourselves as this
+ // might be an indicator that Metastorage SafeTime has stuck for
some time; if we send the command, it will have to add its
+ // future, increasing (most probably, uselessly) heap pressure.
+ return;
}
+
+ getOrCreateContext(replica).lastIdleSafeTimeProposal =
proposedSafeTime;
Review Comment:
Yes, as it's taken from the clock
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