seaweedfs/weed/shell/command_volume_fix_replication_test.go

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package shell
import (
"testing"
"github.com/seaweedfs/seaweedfs/weed/pb/master_pb"
"github.com/seaweedfs/seaweedfs/weed/storage/super_block"
)
type testcase struct {
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name string
replication string
replicas []*VolumeReplica
possibleLocation location
expected bool
}
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func TestSatisfyReplicaPlacementComplicated(t *testing.T) {
var tests = []testcase{
{
name: "test 100 negative",
replication: "100",
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replicas: []*VolumeReplica{
{
location: &location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
},
},
possibleLocation: location{"dc1", "r2", &master_pb.DataNodeInfo{Id: "dn2"}},
expected: false,
},
{
name: "test 100 positive",
replication: "100",
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replicas: []*VolumeReplica{
{
location: &location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
},
},
possibleLocation: location{"dc2", "r2", &master_pb.DataNodeInfo{Id: "dn2"}},
expected: true,
},
{
name: "test 022 positive",
replication: "022",
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replicas: []*VolumeReplica{
{
location: &location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
},
{
location: &location{"dc1", "r2", &master_pb.DataNodeInfo{Id: "dn2"}},
},
{
location: &location{"dc1", "r3", &master_pb.DataNodeInfo{Id: "dn3"}},
},
},
possibleLocation: location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn4"}},
expected: true,
},
{
name: "test 022 negative",
replication: "022",
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replicas: []*VolumeReplica{
{
location: &location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
},
{
location: &location{"dc1", "r2", &master_pb.DataNodeInfo{Id: "dn2"}},
},
{
location: &location{"dc1", "r3", &master_pb.DataNodeInfo{Id: "dn3"}},
},
},
possibleLocation: location{"dc1", "r4", &master_pb.DataNodeInfo{Id: "dn4"}},
expected: false,
},
{
name: "test 210 moved from 200 positive",
replication: "210",
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replicas: []*VolumeReplica{
{
location: &location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
},
{
location: &location{"dc2", "r2", &master_pb.DataNodeInfo{Id: "dn2"}},
},
{
location: &location{"dc3", "r3", &master_pb.DataNodeInfo{Id: "dn3"}},
},
},
possibleLocation: location{"dc1", "r4", &master_pb.DataNodeInfo{Id: "dn4"}},
expected: true,
},
{
name: "test 210 moved from 200 negative extra dc",
replication: "210",
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replicas: []*VolumeReplica{
{
location: &location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
},
{
location: &location{"dc2", "r2", &master_pb.DataNodeInfo{Id: "dn2"}},
},
{
location: &location{"dc3", "r3", &master_pb.DataNodeInfo{Id: "dn3"}},
},
},
possibleLocation: location{"dc4", "r4", &master_pb.DataNodeInfo{Id: "dn4"}},
expected: false,
},
{
name: "test 210 moved from 200 negative extra data node",
replication: "210",
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replicas: []*VolumeReplica{
{
location: &location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
},
{
location: &location{"dc2", "r2", &master_pb.DataNodeInfo{Id: "dn2"}},
},
{
location: &location{"dc3", "r3", &master_pb.DataNodeInfo{Id: "dn3"}},
},
},
possibleLocation: location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn4"}},
expected: false,
},
}
runTests(tests, t)
}
func TestSatisfyReplicaPlacement01x(t *testing.T) {
var tests = []testcase{
{
name: "test 011 same existing rack",
replication: "011",
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replicas: []*VolumeReplica{
{
location: &location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
},
{
location: &location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn2"}},
},
},
possibleLocation: location{"dc1", "r2", &master_pb.DataNodeInfo{Id: "dn3"}},
expected: true,
},
{
name: "test 011 negative",
replication: "011",
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replicas: []*VolumeReplica{
{
location: &location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
},
{
location: &location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn2"}},
},
},
possibleLocation: location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn3"}},
expected: false,
},
{
name: "test 011 different existing racks",
replication: "011",
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replicas: []*VolumeReplica{
{
location: &location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
},
{
location: &location{"dc1", "r2", &master_pb.DataNodeInfo{Id: "dn2"}},
},
},
possibleLocation: location{"dc1", "r2", &master_pb.DataNodeInfo{Id: "dn3"}},
expected: true,
},
{
name: "test 011 different existing racks negative",
replication: "011",
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replicas: []*VolumeReplica{
{
location: &location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
},
{
location: &location{"dc1", "r2", &master_pb.DataNodeInfo{Id: "dn2"}},
},
},
possibleLocation: location{"dc1", "r3", &master_pb.DataNodeInfo{Id: "dn3"}},
expected: false,
},
}
runTests(tests, t)
}
func TestSatisfyReplicaPlacement00x(t *testing.T) {
var tests = []testcase{
{
name: "test 001",
replication: "001",
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replicas: []*VolumeReplica{
{
location: &location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
},
},
possibleLocation: location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn2"}},
expected: true,
},
{
name: "test 002 positive",
replication: "002",
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replicas: []*VolumeReplica{
{
location: &location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
},
{
location: &location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn2"}},
},
},
possibleLocation: location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn3"}},
expected: true,
},
{
name: "test 002 negative, repeat the same node",
replication: "002",
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replicas: []*VolumeReplica{
{
location: &location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
},
{
location: &location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn2"}},
},
},
possibleLocation: location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn2"}},
expected: false,
},
{
name: "test 002 negative, enough node already",
replication: "002",
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replicas: []*VolumeReplica{
{
location: &location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
},
{
location: &location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn2"}},
},
{
location: &location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn3"}},
},
},
possibleLocation: location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn4"}},
expected: false,
},
}
runTests(tests, t)
}
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func TestSatisfyReplicaPlacement100(t *testing.T) {
var tests = []testcase{
{
name: "test 100",
replication: "100",
replicas: []*VolumeReplica{
{
location: &location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
},
{
location: &location{"dc1", "r2", &master_pb.DataNodeInfo{Id: "dn2"}},
},
},
possibleLocation: location{"dc2", "r3", &master_pb.DataNodeInfo{Id: "dn3"}},
expected: true,
},
}
runTests(tests, t)
}
func runTests(tests []testcase, t *testing.T) {
for _, tt := range tests {
replicaPlacement, _ := super_block.NewReplicaPlacementFromString(tt.replication)
println("replication:", tt.replication, "expected", tt.expected, "name:", tt.name)
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if satisfyReplicaPlacement(replicaPlacement, tt.replicas, tt.possibleLocation) != tt.expected {
t.Errorf("%s: expect %v add %v to %s %+v",
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tt.name, tt.expected, tt.possibleLocation, tt.replication, tt.replicas)
}
}
}
func TestMisplacedChecking(t *testing.T) {
var tests = []testcase{
{
name: "test 001",
replication: "001",
replicas: []*VolumeReplica{
{
location: &location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
},
{
location: &location{"dc1", "r2", &master_pb.DataNodeInfo{Id: "dn2"}},
},
},
expected: true,
},
{
name: "test 010",
replication: "010",
replicas: []*VolumeReplica{
{
location: &location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
},
{
location: &location{"dc1", "r2", &master_pb.DataNodeInfo{Id: "dn2"}},
},
},
expected: false,
},
{
name: "test 011",
replication: "011",
replicas: []*VolumeReplica{
{
location: &location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
},
{
location: &location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn2"}},
},
{
location: &location{"dc1", "r2", &master_pb.DataNodeInfo{Id: "dn3"}},
},
},
expected: false,
},
{
name: "test 110",
replication: "110",
replicas: []*VolumeReplica{
{
location: &location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
},
{
location: &location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn2"}},
},
{
location: &location{"dc2", "r2", &master_pb.DataNodeInfo{Id: "dn3"}},
},
},
expected: true,
},
{
name: "test 100",
replication: "100",
replicas: []*VolumeReplica{
{
location: &location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
},
{
location: &location{"dc1", "r2", &master_pb.DataNodeInfo{Id: "dn2"}},
},
},
expected: true,
},
}
for _, tt := range tests {
replicaPlacement, _ := super_block.NewReplicaPlacementFromString(tt.replication)
println("replication:", tt.replication, "expected", tt.expected, "name:", tt.name)
if isMisplaced(tt.replicas, replicaPlacement) != tt.expected {
t.Errorf("%s: expect %v %v %+v",
tt.name, tt.expected, tt.replication, tt.replicas)
}
}
}
func TestPickingMisplacedVolumeToDelete(t *testing.T) {
var tests = []testcase{
{
name: "test 001",
replication: "001",
replicas: []*VolumeReplica{
{
location: &location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
info: &master_pb.VolumeInformationMessage{
Size: 100,
},
},
{
location: &location{"dc1", "r2", &master_pb.DataNodeInfo{Id: "dn2"}},
info: &master_pb.VolumeInformationMessage{
Size: 99,
},
},
},
possibleLocation: location{"dc1", "r2", &master_pb.DataNodeInfo{Id: "dn2"}},
},
{
name: "test 100",
replication: "100",
replicas: []*VolumeReplica{
{
location: &location{"dc1", "r1", &master_pb.DataNodeInfo{Id: "dn1"}},
info: &master_pb.VolumeInformationMessage{
Size: 100,
},
},
{
location: &location{"dc1", "r2", &master_pb.DataNodeInfo{Id: "dn2"}},
info: &master_pb.VolumeInformationMessage{
Size: 99,
},
},
},
possibleLocation: location{"dc1", "r2", &master_pb.DataNodeInfo{Id: "dn2"}},
},
}
for _, tt := range tests {
replicaPlacement, _ := super_block.NewReplicaPlacementFromString(tt.replication)
println("replication:", tt.replication, "name:", tt.name)
if x := pickOneMisplacedVolume(tt.replicas, replicaPlacement); x.location.dataNode.Id != tt.possibleLocation.dataNode.Id {
t.Errorf("%s: picked %+v for replication %v",
tt.name, x.location.dataNode.Id, tt.replication)
} else {
t.Logf("%s: picked %+v %v",
tt.name, x.location.dataNode.Id, tt.replication)
}
}
}