Allow compaction disable per tenant

CHANGELOG.md

@@ -49,6 +49,7 @@
 * [ENHANCEMENT] Added new Traces api V2[#3912](https://github.com/grafana/tempo/pull/3912) (@javiermolinar)
 * [ENHANCEMENT] Update to the latest dskit [#3915](https://github.com/grafana/tempo/pull/3915) (@andreasgerstmayr)
 * [ENHANCEMENT] Reduce allocs building queriers sharded requests [#3932](https://github.com/grafana/tempo/pull/3932) (@javiermolinar)
+* [ENHANCEMENT] Allow compaction disablement per-tenant [#3965](https://github.com/grafana/tempo/pull/3965) (@zalegrala)
 
 * [ENHANCEMENT] Implement polling tenants concurrently [#3647](https://github.com/grafana/tempo/pull/3647) (@zalegrala)
 * [BUGFIX] Fix panic in certain metrics queries using `rate()` with `by` [#3847](https://github.com/grafana/tempo/pull/3847) (@stoewer)

modules/compactor/compactor.go

@@ -254,6 +254,11 @@ func (c *Compactor) BlockRetentionForTenant(tenantID string) time.Duration {
 	return c.overrides.BlockRetention(tenantID)
 }
 
+// CompactionDisabledForTenant implements CompactorOverrides
+func (c *Compactor) CompactionDisabledForTenant(tenantID string) bool {
+	return c.overrides.CompactionDisabled(tenantID)
+}
+
 func (c *Compactor) MaxBytesPerTraceForTenant(tenantID string) int {
 	return c.overrides.MaxBytesPerTrace(tenantID)
 }

modules/overrides/config.go

@@ -164,8 +164,9 @@ type ReadOverrides struct {
 
 type CompactionOverrides struct {
 	// Compactor enforced overrides.
-	BlockRetention   model.Duration `yaml:"block_retention,omitempty" json:"block_retention,omitempty"`
-	CompactionWindow model.Duration `yaml:"compaction_window,omitempty" json:"compaction_window,omitempty"`
+	BlockRetention     model.Duration `yaml:"block_retention,omitempty" json:"block_retention,omitempty"`
+	CompactionWindow   model.Duration `yaml:"compaction_window,omitempty" json:"compaction_window,omitempty"`
+	CompactionDisabled bool           `yaml:"compaction_disabled,omitempty" json:"compaction_disabled,omitempty"`
 }
 
 type GlobalOverrides struct {

modules/overrides/config_legacy.go

@@ -117,8 +117,9 @@ type LegacyOverrides struct {
 	MetricsGeneratorIngestionSlack                                              time.Duration                    `yaml:"metrics_generator_ingestion_time_range_slack" json:"metrics_generator_ingestion_time_range_slack"`
 
 	// Compactor enforced limits.
-	BlockRetention   model.Duration `yaml:"block_retention" json:"block_retention"`
-	CompactionWindow model.Duration `yaml:"compaction_window" json:"compaction_window"`
+	BlockRetention     model.Duration `yaml:"block_retention" json:"block_retention"`
+	CompactionDisabled bool           `yaml:"compaction_disabled" json:"compaction_disabled"`
+	CompactionWindow   model.Duration `yaml:"compaction_window" json:"compaction_window"`
 
 	// Querier and Ingester enforced limits.
 	MaxBytesPerTagValuesQuery  int `yaml:"max_bytes_per_tag_values_query" json:"max_bytes_per_tag_values_query"`
@@ -155,8 +156,9 @@ func (l *LegacyOverrides) toNewLimits() Overrides {
 			UnsafeQueryHints:           l.UnsafeQueryHints,
 		},
 		Compaction: CompactionOverrides{
-			BlockRetention:   l.BlockRetention,
-			CompactionWindow: l.CompactionWindow,
+			BlockRetention:     l.BlockRetention,
+			CompactionDisabled: l.CompactionDisabled,
+			CompactionWindow:   l.CompactionWindow,
 		},
 		MetricsGenerator: MetricsGeneratorOverrides{
 			RingSize:                 l.MetricsGeneratorRingSize,

modules/overrides/interface.go

@@ -71,6 +71,7 @@ type Interface interface {
 	MetricsGeneratorProcessorServiceGraphsEnableVirtualNodeLabel(userID string) bool
 	MetricsGeneratorProcessorSpanMetricsTargetInfoExcludedDimensions(userID string) []string
 	BlockRetention(userID string) time.Duration
+	CompactionDisabled(userID string) bool
 	MaxSearchDuration(userID string) time.Duration
 	MaxMetricsDuration(userID string) time.Duration
 	DedicatedColumns(userID string) backend.DedicatedColumns

modules/overrides/runtime_config_overrides.go

@@ -515,6 +515,11 @@ func (o *runtimeConfigOverridesManager) BlockRetention(userID string) time.Durat
 	return time.Duration(o.getOverridesForUser(userID).Compaction.BlockRetention)
 }
 
+// CompactionDisabled will not compact tenants which have this enabled.
+func (o *runtimeConfigOverridesManager) CompactionDisabled(userID string) bool {
+	return o.getOverridesForUser(userID).Compaction.CompactionDisabled
+}
+
 func (o *runtimeConfigOverridesManager) DedicatedColumns(userID string) backend.DedicatedColumns {
 	return o.getOverridesForUser(userID).Storage.DedicatedColumns
 }

tempodb/compactor.go

@@ -104,6 +104,12 @@ func (rw *readerWriter) doCompaction(ctx context.Context) {
 
 	// Select the next tenant to run compaction for
 	tenantID := tenants[rw.compactorTenantOffset]
+
+	// Skip compaction for tenants which have it disabled.
+	if rw.compactorOverrides.CompactionDisabledForTenant(tenantID) {
+		return
+	}
+
 	// Get the meta file of all non-compacted blocks for the given tenant
 	blocklist := rw.blocklist.Metas(tenantID)
 

tempodb/compactor_test.go

@@ -48,6 +48,7 @@ func (m *mockJobSharder) Owns(string) bool { return true }
 
 type mockOverrides struct {
 	blockRetention      time.Duration
+	disabled            bool
 	maxBytesPerTrace    int
 	maxCompactionWindow time.Duration
 }
@@ -56,6 +57,10 @@ func (m *mockOverrides) BlockRetentionForTenant(_ string) time.Duration {
 	return m.blockRetention
 }
 
+func (m *mockOverrides) CompactionDisabledForTenant(_ string) bool {
+	return m.disabled
+}
+
 func (m *mockOverrides) MaxBytesPerTraceForTenant(_ string) int {
 	return m.maxBytesPerTrace
 }

tempodb/tempodb.go

@@ -108,6 +108,7 @@ type CompactorSharder interface {
 
 type CompactorOverrides interface {
 	BlockRetentionForTenant(tenantID string) time.Duration
+	CompactionDisabledForTenant(tenantID string) bool
 	MaxBytesPerTraceForTenant(tenantID string) int
 	MaxCompactionRangeForTenant(tenantID string) time.Duration
 }