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Allow drop slots when it gets deleted from the manifest #2089

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Merged
FxKu merged 14 commits into from
Jan 3, 2023
Merged

Allow drop slots when it gets deleted from the manifest #2089

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5a4bad4
Allow drop slots when it gets deleted from the manifest
idanovinda Oct 24, 2022
267a161
remove slot using patch
idanovinda Oct 28, 2022
7370258
swap deletion and insertion order
idanovinda Oct 31, 2022
29d09d9
add e2e slot removal
idanovinda Oct 31, 2022
530a36c
add retries and interval
idanovinda Oct 31, 2022
2feeb65
update query and assertion
idanovinda Oct 31, 2022
5ae08d7
apply feedback
idanovinda Nov 4, 2022
86dfc8c
reflect feedback
idanovinda Dec 14, 2022
8c0c0ca
use leader instead replica to query slots
idanovinda Dec 16, 2022
21ba57f
fix and extend unit tests for config update checks
FxKu Dec 16, 2022
02923ca
fix e2e test
idanovinda Dec 21, 2022
a7c3240
Update e2e/tests/test_e2e.py
FxKu Dec 28, 2022
21608ca
Update e2e/tests/test_e2e.py
FxKu Dec 28, 2022
c05d0e2
formatting slot query
idanovinda Jan 2, 2023
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2 changes: 1 addition & 1 deletion pkg/cluster/sync.go
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Original file line number Diff line number Diff line change
Expand Up @@ -625,7 +625,7 @@ func (c *Cluster) checkAndSetGlobalPostgreSQLConfiguration(pod *v1.Pod, effectiv
}

// check if there exist only config updates that require a restart of the primary
if !util.SliceContains(restartPrimary, false) && len(configToSet) == 0 {
if len(restartPrimary) > 0 && !util.SliceContains(restartPrimary, false) && len(configToSet) == 0 {
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@FxKu FxKu Dec 16, 2022

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if there's nothing to set requiresMasterRestart would become true here which is wrong

requiresMasterRestart = true
}

Expand Down
86 changes: 68 additions & 18 deletions pkg/cluster/sync_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -215,12 +215,26 @@ func TestCheckAndSetGlobalPostgreSQLConfiguration(t *testing.T) {

// simulate existing config that differs from cluster.Spec
tests := []struct {
subtest string
patroni acidv1.Patroni
slots map[string]map[string]string
pgParams map[string]string
restartPrimary bool
subtest string
patroni acidv1.Patroni
desiredSlots map[string]map[string]string
removedSlots map[string]map[string]string
pgParams map[string]string
shouldBePatched bool
restartPrimary bool
}{
{
subtest: "Patroni and Postgresql.Parameters do not differ",
patroni: acidv1.Patroni{
TTL: 20,
},
pgParams: map[string]string{
"log_min_duration_statement": "200",
"max_connections": "50",
},
shouldBePatched: false,
restartPrimary: false,
},
{
subtest: "Patroni and Postgresql.Parameters differ - restart replica first",
patroni: acidv1.Patroni{
Expand All @@ -230,7 +244,8 @@ func TestCheckAndSetGlobalPostgreSQLConfiguration(t *testing.T) {
"log_min_duration_statement": "500", // desired 200
"max_connections": "100", // desired 50
},
restartPrimary: false,
shouldBePatched: true,
restartPrimary: false,
},
{
subtest: "multiple Postgresql.Parameters differ - restart replica first",
Expand All @@ -239,7 +254,8 @@ func TestCheckAndSetGlobalPostgreSQLConfiguration(t *testing.T) {
"log_min_duration_statement": "500", // desired 200
"max_connections": "100", // desired 50
},
restartPrimary: false,
shouldBePatched: true,
restartPrimary: false,
},
{
subtest: "desired max_connections bigger - restart replica first",
Expand All @@ -248,7 +264,8 @@ func TestCheckAndSetGlobalPostgreSQLConfiguration(t *testing.T) {
"log_min_duration_statement": "200",
"max_connections": "30", // desired 50
},
restartPrimary: false,
shouldBePatched: true,
restartPrimary: false,
},
{
subtest: "desired max_connections smaller - restart master first",
Expand All @@ -257,19 +274,21 @@ func TestCheckAndSetGlobalPostgreSQLConfiguration(t *testing.T) {
"log_min_duration_statement": "200",
"max_connections": "100", // desired 50
},
restartPrimary: true,
shouldBePatched: true,
restartPrimary: true,
},
{
subtest: "slot does not exist but is desired",
patroni: acidv1.Patroni{
TTL: 20,
},
slots: testSlots,
desiredSlots: testSlots,
pgParams: map[string]string{
"log_min_duration_statement": "200",
"max_connections": "50",
},
restartPrimary: false,
shouldBePatched: true,
restartPrimary: false,
},
{
subtest: "slot exist, nothing specified in manifest",
Expand All @@ -287,7 +306,28 @@ func TestCheckAndSetGlobalPostgreSQLConfiguration(t *testing.T) {
"log_min_duration_statement": "200",
"max_connections": "50",
},
restartPrimary: false,
shouldBePatched: false,
restartPrimary: false,
},
{
subtest: "slot is removed from manifest",
patroni: acidv1.Patroni{
TTL: 20,
Slots: map[string]map[string]string{
"slot1": {
"type": "logical",
"plugin": "pgoutput",
"database": "foo",
},
},
},
removedSlots: testSlots,
pgParams: map[string]string{
"log_min_duration_statement": "200",
"max_connections": "50",
},
shouldBePatched: true,
restartPrimary: false,
},
{
subtest: "slot plugin differs",
Expand All @@ -301,28 +341,38 @@ func TestCheckAndSetGlobalPostgreSQLConfiguration(t *testing.T) {
},
},
},
slots: testSlots,
desiredSlots: testSlots,
pgParams: map[string]string{
"log_min_duration_statement": "200",
"max_connections": "50",
},
restartPrimary: false,
shouldBePatched: true,
restartPrimary: false,
},
}

for _, tt := range tests {
if tt.slots != nil {
cluster.Spec.Patroni.Slots = tt.slots
if len(tt.desiredSlots) > 0 {
cluster.Spec.Patroni.Slots = tt.desiredSlots
}
if len(tt.removedSlots) > 0 {
for slotName, removedSlot := range tt.removedSlots {
cluster.replicationSlots[slotName] = removedSlot
}
}

configPatched, requirePrimaryRestart, err := cluster.checkAndSetGlobalPostgreSQLConfiguration(mockPod, tt.patroni, cluster.Spec.Patroni, tt.pgParams, cluster.Spec.Parameters)
assert.NoError(t, err)
if configPatched != true {
if configPatched != tt.shouldBePatched {
t.Errorf("%s - %s: expected config update did not happen", testName, tt.subtest)
}
if requirePrimaryRestart != tt.restartPrimary {
t.Errorf("%s - %s: wrong master restart strategy, got restart %v, expected restart %v", testName, tt.subtest, requirePrimaryRestart, tt.restartPrimary)
}

// reset slots for next tests
cluster.Spec.Patroni.Slots = nil
cluster.replicationSlots = make(map[string]interface{})
}

testsFailsafe := []struct {
Expand Down Expand Up @@ -403,7 +453,7 @@ func TestCheckAndSetGlobalPostgreSQLConfiguration(t *testing.T) {
effectiveVal: util.True(),
desiredVal: true,
shouldBePatched: false, // should not require patching
restartPrimary: true,
restartPrimary: false,
},
}

Expand Down