roachtest: disable network partitions in mixed version tests

DarrylWong · DarrylWong · commit 6f0af966b328 · 2025-10-01T18:04:29.000Z
This mutator is currently causing test flakes and we need to revaluate our approach before re-enabling. See #154547.
diff --git a/pkg/cmd/roachtest/roachtestutil/mixedversion/mutators.go b/pkg/cmd/roachtest/roachtestutil/mixedversion/mutators.go
@@ -543,7 +543,8 @@ type networkPartitionMutator struct{}
 func (m networkPartitionMutator) Name() string { return failures.IPTablesNetworkPartitionName }
 
 func (m networkPartitionMutator) Probability() float64 {
-	return 0.3
+	// TODO(#154547)
+	return 0.0
 }
 
 func (m networkPartitionMutator) Generate(

Original file line number	Diff line number	Diff line change
`@@ -543,7 +543,8 @@ type networkPartitionMutator struct{}`
`543`	`543`	`func (m networkPartitionMutator) Name() string { return failures.IPTablesNetworkPartitionName }`
`544`	`544`
`545`	`545`	`func (m networkPartitionMutator) Probability() float64 {`
`546`		`- return 0.3`
	`546`	`+ // TODO(#154547)`
	`547`	`+ return 0.0`
`547`	`548`	`}`
`548`	`549`
`549`	`550`	`func (m networkPartitionMutator) Generate(`