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e2e: more consistent node selection during tests (#6857)

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In the transaction load generator, the e2e test harness previously distributed load randomly to hosts, which was a source of test non-determinism. This change distributes the load generation to the different nodes in the set in a round robin fashion, to produce more reliable results, but does not otherwise change the behavior of the test harness.
This commit is contained in:
Sam Kleinman
2021-08-25 12:24:01 +00:00
committed by GitHub
parent e053643b95
commit 9c8379ef30
3 changed files with 72 additions and 36 deletions
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test/e2e/pkg/testnet.go
-10
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@@ -417,16 +417,6 @@ func (t Testnet) ArchiveNodes() []*Node {
return nodes
}
// RandomNode returns a random non-seed node.
func (t Testnet) RandomNode() *Node {
for {
node := t.Nodes[rand.Intn(len(t.Nodes))]
if node.Mode != ModeSeed {
return node
}
}
}
// IPv6 returns true if the testnet is an IPv6 network.
func (t Testnet) IPv6() bool {
return t.IP.IP.To4() == nil