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release-24.3: roachtest: deflake c2c/disconnect #155009

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Oct 8, 2025
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release-24.3: roachtest: deflake c2c/disconnect #155009

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6 changes: 4 additions & 2 deletions pkg/cmd/roachtest/tests/cluster_to_cluster.go
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Original file line number Diff line number Diff line change
Expand Up @@ -1757,17 +1757,19 @@ func registerClusterReplicationDisconnect(r registry.Registry) {
var dstNode int
srcTenantSQL.QueryRow(t, `select split_part(consumer, '[', 1) from crdb_internal.cluster_replication_node_streams order by random() limit 1`).Scan(&dstNode)

roachprodDstNode := dstNode + sp.srcNodes

disconnectDuration := sp.additionalDuration
rd.t.L().Printf("Disconnecting Src %d, Dest %d for %.2f minutes", srcNode,
dstNode, disconnectDuration.Minutes())
roachprodDstNode, disconnectDuration.Minutes())

// Normally, the blackholeFailer is accessed through the failer interface,
// at least in the failover tests. Because this test shouldn't use all the
// failer interface calls (e.g. Setup(), and Ready()), we use the
// blakholeFailer struct directly. In other words, in this test, we
// shouldn't treat the blackholeFailer as an abstracted api.
blackholeFailer := &blackholeFailer{t: rd.t, c: rd.c, input: true, output: true}
blackholeFailer.FailPartial(ctx, srcNode, []int{dstNode})
blackholeFailer.FailPartial(ctx, srcNode, []int{roachprodDstNode})

time.Sleep(disconnectDuration)
// Calling this will log the latest topology.
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