migrate flag experimental-compaction-batch-limit to use compaction-batch-limit

server/embed/config.go

@@ -135,6 +135,7 @@ var (
 	experimentalNonBoolFlagMigrationMap = map[string]string{
 		"experimental-compact-hash-check-time": "compact-hash-check-time",
 		"experimental-corrupt-check-time":      "corrupt-check-time",
+		"experimental-compaction-batch-limit":  "compaction-batch-limit",
 	}
 )
 
@@ -387,7 +388,11 @@ type Config struct {
 	// Deprecated in v3.6.
 	// TODO: Delete in v3.7
 	ExperimentalEnableLeaseCheckpointPersist bool `json:"experimental-enable-lease-checkpoint-persist"`
-	ExperimentalCompactionBatchLimit         int  `json:"experimental-compaction-batch-limit"`
+	// ExperimentalCompactionBatchLimit Sets the maximum revisions deleted in each compaction batch.
+	// Deprecated in v3.6 and will be decommissioned in v3.7.
+	// TODO: Delete in v3.7
+	ExperimentalCompactionBatchLimit int `json:"experimental-compaction-batch-limit"`
+	CompactionBatchLimit             int `json:"compaction-batch-limit"`
 	// ExperimentalCompactionSleepInterval is the sleep interval between every etcd compaction loop.
 	ExperimentalCompactionSleepInterval     time.Duration `json:"experimental-compaction-sleep-interval"`
 	ExperimentalWatchProgressNotifyInterval time.Duration `json:"experimental-watch-progress-notify-interval"`
@@ -788,7 +793,9 @@ func (cfg *Config) AddFlags(fs *flag.FlagSet) {
 	fs.BoolVar(&cfg.ExperimentalEnableLeaseCheckpoint, "experimental-enable-lease-checkpoint", false, "Enable leader to send regular checkpoints to other members to prevent reset of remaining TTL on leader change.")
 	// TODO: delete in v3.7
 	fs.BoolVar(&cfg.ExperimentalEnableLeaseCheckpointPersist, "experimental-enable-lease-checkpoint-persist", false, "Enable persisting remainingTTL to prevent indefinite auto-renewal of long lived leases. Always enabled in v3.6. Should be used to ensure smooth upgrade from v3.5 clusters with this feature enabled. Requires experimental-enable-lease-checkpoint to be enabled.")
-	fs.IntVar(&cfg.ExperimentalCompactionBatchLimit, "experimental-compaction-batch-limit", cfg.ExperimentalCompactionBatchLimit, "Sets the maximum revisions deleted in each compaction batch.")
+	// TODO: delete in v3.7
+	fs.IntVar(&cfg.ExperimentalCompactionBatchLimit, "experimental-compaction-batch-limit", cfg.ExperimentalCompactionBatchLimit, "Sets the maximum revisions deleted in each compaction batch. Deprecated in v3.6 and will be decommissioned in v3.7. Use --compaction-batch-limit instead.")
+	fs.IntVar(&cfg.CompactionBatchLimit, "compaction-batch-limit", cfg.CompactionBatchLimit, "Sets the maximum revisions deleted in each compaction batch.")
 	fs.DurationVar(&cfg.ExperimentalCompactionSleepInterval, "experimental-compaction-sleep-interval", cfg.ExperimentalCompactionSleepInterval, "Sets the sleep interval between each compaction batch.")
 	fs.DurationVar(&cfg.ExperimentalWatchProgressNotifyInterval, "experimental-watch-progress-notify-interval", cfg.ExperimentalWatchProgressNotifyInterval, "Duration of periodic watch progress notifications.")
 	fs.DurationVar(&cfg.ExperimentalDowngradeCheckTime, "experimental-downgrade-check-time", cfg.ExperimentalDowngradeCheckTime, "Duration of time between two downgrade status checks.")

server/embed/etcd.go

@@ -215,7 +215,7 @@ func StartEtcd(inCfg *Config) (e *Etcd, err error) {
 		UnsafeNoFsync:                        cfg.UnsafeNoFsync,
 		EnableLeaseCheckpoint:                cfg.ExperimentalEnableLeaseCheckpoint,
 		LeaseCheckpointPersist:               cfg.ExperimentalEnableLeaseCheckpointPersist,
-		CompactionBatchLimit:                 cfg.ExperimentalCompactionBatchLimit,
+		CompactionBatchLimit:                 cfg.CompactionBatchLimit,
 		CompactionSleepInterval:              cfg.ExperimentalCompactionSleepInterval,
 		WatchProgressNotifyInterval:          cfg.ExperimentalWatchProgressNotifyInterval,
 		DowngradeCheckTime:                   cfg.ExperimentalDowngradeCheckTime,

server/etcdmain/config.go

@@ -66,6 +66,7 @@ var (
 		"experimental-compact-hash-check-time":           "--experimental-compact-hash-check-time is deprecated in 3.6 and will be decommissioned in 3.7. Use '--compact-hash-check-time' instead.",
 		"experimental-txn-mode-write-with-shared-buffer": "--experimental-txn-mode-write-with-shared-buffer is deprecated in v3.6 and will be decommissioned in v3.7. Use '--feature-gates=TxnModeWriteWithSharedBuffer=true' instead.",
 		"experimental-corrupt-check-time":                "--experimental-corrupt-check-time is deprecated in v3.6 and will be decommissioned in v3.7. Use '--corrupt-check-time' instead.",
+		"experimental-compaction-batch-limit":            "--experimental-compaction-batch-limit is deprecated in v3.6 and will be decommissioned in v3.7. Use '--compaction-batch-limit' instead.",
 	}
 )
 
@@ -179,6 +180,10 @@ func (cfg *config) parse(arguments []string) error {
 		cfg.ec.CorruptCheckTime = cfg.ec.ExperimentalCorruptCheckTime
 	}
 
+	if cfg.ec.FlagsExplicitlySet["experimental-compaction-batch-limit"] {
+		cfg.ec.CompactionBatchLimit = cfg.ec.ExperimentalCompactionBatchLimit
+	}
+
 	// `V2Deprecation` (--v2-deprecation) is deprecated and scheduled for removal in v3.8. The default value is enforced, ignoring user input.
 	cfg.ec.V2Deprecation = cconfig.V2DeprDefault
 

server/etcdmain/config_test.go

@@ -485,7 +485,6 @@ func TestCompactHashCheckTimeFlagMigration(t *testing.T) {
 		name                             string
 		compactHashCheckTime             string
 		experimentalCompactHashCheckTime string
-		useConfigFile                    bool
 		expectErr                        bool
 		expectedCompactHashCheckTime     time.Duration
 	}{
@@ -536,19 +535,7 @@ func TestCompactHashCheckTimeFlagMigration(t *testing.T) {
 				yc.ExperimentalCompactHashCheckTime = experimentalCompactHashCheckTime
 			}
 
-			b, err := yaml.Marshal(&yc)
-			if err != nil {
-				t.Fatal(err)
-			}
-
-			tmpfile := mustCreateCfgFile(t, b)
-			defer os.Remove(tmpfile.Name())
-
-			cfgFromCmdLine := newConfig()
-			errFromCmdLine := cfgFromCmdLine.parse(cmdLineArgs)
-
-			cfgFromFile := newConfig()
-			errFromFile := cfgFromFile.parse([]string{fmt.Sprintf("--config-file=%s", tmpfile.Name())})
+			cfgFromCmdLine, errFromCmdLine, cfgFromFile, errFromFile := generateCfgsFromFileAndCmdLine(t, yc, cmdLineArgs)
 
 			if tc.expectErr {
 				if errFromCmdLine == nil || errFromFile == nil {
@@ -557,7 +544,7 @@ func TestCompactHashCheckTimeFlagMigration(t *testing.T) {
 				return
 			}
 			if errFromCmdLine != nil || errFromFile != nil {
-				t.Fatal(err)
+				t.Fatal("error parsing config")
 			}
 
 			if cfgFromCmdLine.ec.CompactHashCheckTime != tc.expectedCompactHashCheckTime {
@@ -578,7 +565,6 @@ func TestCorruptCheckTimeFlagMigration(t *testing.T) {
 		name                         string
 		corruptCheckTime             string
 		experimentalCorruptCheckTime string
-		useConfigFile                bool
 		expectErr                    bool
 		expectedCorruptCheckTime     time.Duration
 	}{
@@ -625,19 +611,7 @@ func TestCorruptCheckTimeFlagMigration(t *testing.T) {
 				yc.ExperimentalCorruptCheckTime = experimentalCorruptCheckTime
 			}
 
-			b, err := yaml.Marshal(&yc)
-			if err != nil {
-				t.Fatal(err)
-			}
-
-			tmpfile := mustCreateCfgFile(t, b)
-			defer os.Remove(tmpfile.Name())
-
-			cfgFromCmdLine := newConfig()
-			errFromCmdLine := cfgFromCmdLine.parse(cmdLineArgs)
-
-			cfgFromFile := newConfig()
-			errFromFile := cfgFromFile.parse([]string{fmt.Sprintf("--config-file=%s", tmpfile.Name())})
+			cfgFromCmdLine, errFromCmdLine, cfgFromFile, errFromFile := generateCfgsFromFileAndCmdLine(t, yc, cmdLineArgs)
 
 			if tc.expectErr {
 				if errFromCmdLine == nil || errFromFile == nil {
@@ -646,7 +620,7 @@ func TestCorruptCheckTimeFlagMigration(t *testing.T) {
 				return
 			}
 			if errFromCmdLine != nil || errFromFile != nil {
-				t.Fatal(err)
+				t.Fatal("error parsing config")
 			}
 
 			if cfgFromCmdLine.ec.CorruptCheckTime != tc.expectedCorruptCheckTime {
@@ -659,6 +633,92 @@ func TestCorruptCheckTimeFlagMigration(t *testing.T) {
 	}
 }
 
+// TestCompactionBatchLimitFlagMigration tests the migration from
+// --experimental-compaction-batch-limit to --compaction-batch-limit
+// TODO: delete in v3.7
+func TestCompactionBatchLimitFlagMigration(t *testing.T) {
+	testCases := []struct {
+		name                             string
+		compactionBatchLimit             int
+		experimentalCompactionBatchLimit int
+		expectErr                        bool
+		expectedCompactionBatchLimit     int
+	}{
+		{
+			name:                             "cannot set both experimental flag and non experimental flag",
+			compactionBatchLimit:             1,
+			experimentalCompactionBatchLimit: 2,
+			expectErr:                        true,
+		},
+		{
+			name:                             "can set experimental flag",
+			experimentalCompactionBatchLimit: 2,
+			expectedCompactionBatchLimit:     2,
+		},
+		{
+			name:                         "can set non experimental flag",
+			compactionBatchLimit:         1,
+			expectedCompactionBatchLimit: 1,
+		},
+	}
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			cmdLineArgs := []string{}
+			yc := struct {
+				ExperimentalCompactionBatchLimit int `json:"experimental-compaction-batch-limit,omitempty"`
+				CompactionBatchLimit             int `json:"compaction-batch-limit,omitempty"`
+			}{}
+
+			if tc.compactionBatchLimit != 0 {
+				cmdLineArgs = append(cmdLineArgs, fmt.Sprintf("--compaction-batch-limit=%d", tc.compactionBatchLimit))
+				yc.CompactionBatchLimit = tc.compactionBatchLimit
+			}
+
+			if tc.experimentalCompactionBatchLimit != 0 {
+				cmdLineArgs = append(cmdLineArgs, fmt.Sprintf("--experimental-compaction-batch-limit=%d", tc.experimentalCompactionBatchLimit))
+				yc.ExperimentalCompactionBatchLimit = tc.experimentalCompactionBatchLimit
+			}
+
+			cfgFromCmdLine, errFromCmdLine, cfgFromFile, errFromFile := generateCfgsFromFileAndCmdLine(t, yc, cmdLineArgs)
+
+			if tc.expectErr {
+				if errFromCmdLine == nil || errFromFile == nil {
+					t.Fatal("expect parse error")
+				}
+				return
+			}
+			if errFromCmdLine != nil || errFromFile != nil {
+				t.Fatal("error parsing config")
+			}
+
+			if cfgFromCmdLine.ec.CompactionBatchLimit != tc.expectedCompactionBatchLimit {
+				t.Errorf("expected CorruptCheckTime=%v, got %v", tc.expectedCompactionBatchLimit, cfgFromCmdLine.ec.CompactionBatchLimit)
+			}
+			if cfgFromFile.ec.CompactionBatchLimit != tc.expectedCompactionBatchLimit {
+				t.Errorf("expected CorruptCheckTime=%v, got %v", tc.expectedCompactionBatchLimit, cfgFromFile.ec.CompactionBatchLimit)
+			}
+		})
+	}
+}
+
+// TODO delete in v3.7
+func generateCfgsFromFileAndCmdLine(t *testing.T, yc any, cmdLineArgs []string) (*config, error, *config, error) {
+	b, err := yaml.Marshal(&yc)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	tmpfile := mustCreateCfgFile(t, b)
+	defer os.Remove(tmpfile.Name())
+
+	cfgFromCmdLine := newConfig()
+	errFromCmdLine := cfgFromCmdLine.parse(cmdLineArgs)
+
+	cfgFromFile := newConfig()
+	errFromFile := cfgFromFile.parse([]string{fmt.Sprintf("--config-file=%s", tmpfile.Name())})
+	return cfgFromCmdLine, errFromCmdLine, cfgFromFile, errFromFile
+}
+
 func mustCreateCfgFile(t *testing.T, b []byte) *os.File {
 	tmpfile, err := os.CreateTemp("", "servercfg")
 	if err != nil {
@@ -753,6 +813,7 @@ func TestConfigFileDeprecatedOptions(t *testing.T) {
 		ExperimentalCompactHashCheckTime        time.Duration `json:"experimental-compact-hash-check-time,omitempty"`
 		ExperimentalWarningUnaryRequestDuration time.Duration `json:"experimental-warning-unary-request-duration,omitempty"`
 		ExperimentalCorruptCheckTime            time.Duration `json:"experimental-corrupt-check-time,omitempty"`
+		ExperimentalCompactionBatchLimit        int           `json:"experimental-compaction-batch-limit,omitempty"`
 	}
 
 	testCases := []struct {
@@ -772,11 +833,13 @@ func TestConfigFileDeprecatedOptions(t *testing.T) {
 				ExperimentalCompactHashCheckTime:        2 * time.Minute,
 				ExperimentalWarningUnaryRequestDuration: time.Second,
 				ExperimentalCorruptCheckTime:            time.Minute,
+				ExperimentalCompactionBatchLimit:        1,
 			},
 			expectedFlags: map[string]struct{}{
 				"experimental-compact-hash-check-enabled": {},
 				"experimental-compact-hash-check-time":    {},
 				"experimental-corrupt-check-time":         {},
+				"experimental-compaction-batch-limit":     {},
 			},
 		},
 		{

server/etcdmain/help.go

@@ -288,7 +288,9 @@ Experimental feature:
   --experimental-enable-lease-checkpoint 'false'
     ExperimentalEnableLeaseCheckpoint enables primary lessor to persist lease remainingTTL to prevent indefinite auto-renewal of long lived leases.
   --experimental-compaction-batch-limit 1000
-    ExperimentalCompactionBatchLimit sets the maximum revisions deleted in each compaction batch.
+    ExperimentalCompactionBatchLimit sets the maximum revisions deleted in each compaction batch. Deprecated in v3.6 and will be decommissioned in v3.7. Use 'compaction-batch-limit' instead.
+  --compaction-batch-limit 1000
+    CompactionBatchLimit sets the maximum revisions deleted in each compaction batch.
   --experimental-peer-skip-client-san-verification 'false'
     Skip verification of SAN field in client certificate for peer connections.
   --experimental-watch-progress-notify-interval '10m'

tests/e2e/corrupt_test.go

@@ -294,14 +294,18 @@ func testCompactHashCheckDetectCorruption(t *testing.T, useFeatureGate bool) {
 }
 
 func TestCompactHashCheckDetectCorruptionInterrupt(t *testing.T) {
-	testCompactHashCheckDetectCorruptionInterrupt(t, false)
+	testCompactHashCheckDetectCorruptionInterrupt(t, false, false)
 }
 
 func TestCompactHashCheckDetectCorruptionInterruptWithFeatureGate(t *testing.T) {
-	testCompactHashCheckDetectCorruptionInterrupt(t, true)
+	testCompactHashCheckDetectCorruptionInterrupt(t, true, false)
 }
 
-func testCompactHashCheckDetectCorruptionInterrupt(t *testing.T, useFeatureGate bool) {
+func TestCompactHashCheckDetectCorruptionInterruptWithExperimentalFlag(t *testing.T) {
+	testCompactHashCheckDetectCorruptionInterrupt(t, true, true)
+}
+
+func testCompactHashCheckDetectCorruptionInterrupt(t *testing.T, useFeatureGate bool, useExperimentalFlag bool) {
 	checkTime := time.Second
 	e2e.BeforeTest(t)
 	ctx, cancel := context.WithTimeout(context.Background(), 60*time.Second)
@@ -325,14 +329,20 @@ func testCompactHashCheckDetectCorruptionInterrupt(t *testing.T, useFeatureGate
 	} else {
 		opts = append(opts, e2e.WithCompactHashCheckEnabled(true))
 	}
+	var compactionBatchLimit e2e.EPClusterOption
+	if useExperimentalFlag {
+		compactionBatchLimit = e2e.WithExperimentalCompactionBatchLimit(1)
+	} else {
+		compactionBatchLimit = e2e.WithCompactionBatchLimit(1)
+	}
 
 	cfg := e2e.NewConfig(opts...)
 	epc, err := e2e.InitEtcdProcessCluster(t, cfg)
 	require.NoError(t, err)
 
 	// Assign a node a very slow compaction speed, so that its compaction can be interrupted.
 	err = epc.UpdateProcOptions(slowCompactionNodeIndex, t,
-		e2e.WithCompactionBatchLimit(1),
+		compactionBatchLimit,
 		e2e.WithCompactionSleepInterval(1*time.Hour),
 	)
 	require.NoError(t, err)

tests/framework/e2e/cluster.go

@@ -373,6 +373,10 @@ func WithServerFeatureGate(featureName string, val bool) EPClusterOption {
 }
 
 func WithCompactionBatchLimit(limit int) EPClusterOption {
+	return func(c *EtcdProcessClusterConfig) { c.ServerConfig.CompactionBatchLimit = limit }
+}
+
+func WithExperimentalCompactionBatchLimit(limit int) EPClusterOption {
 	return func(c *EtcdProcessClusterConfig) { c.ServerConfig.ExperimentalCompactionBatchLimit = limit }
 }
 

tests/robustness/failpoint/trigger.go

@@ -75,7 +75,7 @@ func (t triggerCompact) Trigger(ctx context.Context, _ *testing.T, member e2e.Et
 		}
 		rev = resp.Header.Revision
 
-		if !t.multiBatchCompaction || rev > int64(clus.Cfg.ServerConfig.ExperimentalCompactionBatchLimit) {
+		if !t.multiBatchCompaction || rev > int64(clus.Cfg.ServerConfig.CompactionBatchLimit) {
 			break
 		}
 		time.Sleep(50 * time.Millisecond)
@@ -99,7 +99,7 @@ func (t triggerCompact) Available(config e2e.EtcdProcessClusterConfig, _ e2e.Etc
 	// For multiBatchCompaction we need to guarantee that there are enough revisions between two compaction requests.
 	// With addition of compaction requests to traffic this might be hard if experimental-compaction-batch-limit is too high.
 	if t.multiBatchCompaction {
-		return config.ServerConfig.ExperimentalCompactionBatchLimit <= 10
+		return config.ServerConfig.CompactionBatchLimit <= 10
 	}
 	return true
 }

tests/robustness/options/server_config_options.go

@@ -28,7 +28,7 @@ func WithSnapshotCount(input ...uint64) e2e.EPClusterOption {
 
 func WithCompactionBatchLimit(input ...int) e2e.EPClusterOption {
 	return func(c *e2e.EtcdProcessClusterConfig) {
-		c.ServerConfig.ExperimentalCompactionBatchLimit = input[internalRand.Intn(len(input))]
+		c.ServerConfig.CompactionBatchLimit = input[internalRand.Intn(len(input))]
 	}
 }