iamaleksey commented on code in PR #4106:
URL: https://github.com/apache/cassandra/pull/4106#discussion_r2068463236
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src/java/org/apache/cassandra/replication/Shard.java:
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@@ -94,6 +109,42 @@ void addSummaryForRange(AbstractBounds<PartitionPosition>
range, boolean include
});
}
+ List<InetAddressAndPort> remoteReplicas()
+ {
+ List<InetAddressAndPort> replicas = new
ArrayList<>(participants.size() - 1);
+ for (int i = 0, size = participants.size(); i < size; ++i)
+ {
+ int hostId = participants.get(i);
+ if (hostId != localHostId)
+ replicas.add(ClusterMetadata.current().directory.endpoint(new
NodeId(hostId)));
+ }
+ return replicas;
+ }
+
+ /**
+ * Collects replicated offsets for the logs owned by this coordinator on
this shard.
+ */
+ ShardReplicatedOffsets collectReplicatedOffsets()
+ {
+ Long2ObjectHashMap<LogReplicatedOffsets> offsets = new
Long2ObjectHashMap<>();
+ for (CoordinatorLogPrimary log : primaryLogs())
Review Comment:
The mid/long term idea is that in presence of a failed node another one will
temporarily take over its responsibility to broadcast offsets and perform
background reconciliation for the mutations previously written. A third mode
(replica, primary, and deputy). Doing that instead of broadcasting everything
to reduce the overhead. Would implement this when we start the work on recovery.
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