dcapwell commented on code in PR #3656:
URL: https://github.com/apache/cassandra/pull/3656#discussion_r1828447487
##########
test/distributed/org/apache/cassandra/fuzz/topology/TopologyMixupTestBase.java:
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@@ -153,8 +158,50 @@ private enum RemoveType
private Command<State<S>, Void, ?> waitForCMSToQuiesce()
{
- return new SimpleCommand<>(state -> "Waiting for CMS to Quiesce" +
state.commandNamePostfix(),
- state ->
ClusterUtils.waitForCMSToQuiesce(state.cluster, state.cmsGroup));
+ return new Property.StateOnlyCommand<>()
+ {
+ private Epoch maxEpoch = null;
+ @Override
+ public String detailed(State<S> state)
+ {
+ if (maxEpoch == null)
+ maxEpoch = ClusterUtils.maxEpoch(state.cluster,
state.topologyHistory.up());
+ return "Waiting for CMS to Quiesce on epoch " +
maxEpoch.getEpoch() + state.commandNamePostfix();
+ }
+
+ @Override
+ public void applyUnit(State<S> state)
+ {
+ Invariants.nonNull(maxEpoch, "detailed was not called before
calling apply");
+ ClusterUtils.waitForCMSToQuiesce(state.cluster, maxEpoch,
true);
+ }
+ };
+ }
+
+ private Command<State<S>, Void, ?> waitForGossipToSettle()
+ {
+ return new SimpleCommand<>(state -> "Waiting for Ring to Settle" +
state.commandNamePostfix(),
+ state -> {
+ int[] up = state.topologyHistory.up();
+ for (int node : up)
+ {
+ IInvokableInstance instance =
state.cluster.get(node);
+
ClusterUtils.awaitRingJoin(state.cluster, up, instance);
+ }
+ });
+ }
+
+ private Command<State<S>, Void, ?> waitAllNodesInPeers()
Review Comment:
this is to make sure that the ring model doesn't NPE... partial writes to
peers table with async publish is fun!
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