feat: Tulip LTS May 2026 — upgrade to v0.150.0

distributions/tulip/config.yaml

@@ -7,17 +7,45 @@ receivers:
     protocols:
       grpc: {}
 
+processors:
+  memory_limiter:
+    check_interval: 1s
+    limit_mib: 1500
+    spike_limit_mib: 512
+
 exporters:
   nop:
   otlp:
     endpoint: otlp.example.com:4317
+    sending_queue:
+      enabled: true
+      queue_size: 1000
+    batch:
+      flush_timeout: 200ms
+      min_size: 8192
+    retry_on_failure:
+      enabled: true
+      initial_interval: 5s
+      max_interval: 30s
+      max_elapsed_time: 300s
   otlphttp:
     endpoint: https://otlp.example.com/otlp
+    sending_queue:
+      enabled: true
+      queue_size: 1000
+    batch:
+      flush_timeout: 200ms
+      min_size: 8192
+    retry_on_failure:
+      enabled: true
+      initial_interval: 5s
+      max_interval: 30s
+      max_elapsed_time: 300s
 
 service:
   extensions: [ health_check, pprof ]
   pipelines:
     traces:
       receivers:  [ otlp ]
-      processors: [  ]
+      processors: [ memory_limiter ]
       exporters:  [ nop, otlp, otlphttp ]

distributions/tulip/manifest.yaml

@@ -18,49 +18,53 @@ dist:
   module: github.com/ollygarden/tulip/tulip
   name: tulip
   description: OllyGarden Tulip - Enterprise-supported OpenTelemetry Collector distribution
-  version: 0.144.0
+  version: 0.150.0
   output_path: ./_build
   build_tags: "grpcnotrace"
 
 # Extensions: Authentication, health checks, profiling
 extensions:
-  - gomod: go.opentelemetry.io/collector/extension/zpagesextension v0.145.0
-  - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/extension/healthcheckextension v0.145.0
-  - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/extension/pprofextension v0.145.0
-  - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/extension/basicauthextension v0.145.0
-  - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/extension/bearertokenauthextension v0.145.0
-  - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/extension/oauth2clientauthextension v0.145.0
-  - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/extension/oidcauthextension v0.145.0
+  - gomod: go.opentelemetry.io/collector/extension/zpagesextension v0.150.0
+  - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/extension/healthcheckextension v0.150.0
+  - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/extension/pprofextension v0.150.0
+  - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/extension/basicauthextension v0.150.0
+  - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/extension/bearertokenauthextension v0.150.0
+  - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/extension/oauth2clientauthextension v0.150.0
+  - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/extension/oidcauthextension v0.150.0
 
 # Receivers: Ingesting telemetry data
 receivers:
-  - gomod: go.opentelemetry.io/collector/receiver/nopreceiver v0.145.0
-  - gomod: go.opentelemetry.io/collector/receiver/otlpreceiver v0.145.0
+  - gomod: go.opentelemetry.io/collector/receiver/nopreceiver v0.150.0
+  - gomod: go.opentelemetry.io/collector/receiver/otlpreceiver v0.150.0
 
 # Exporters: Sending telemetry to backends
 exporters:
-  - gomod: go.opentelemetry.io/collector/exporter/debugexporter v0.145.0
-  - gomod: go.opentelemetry.io/collector/exporter/nopexporter v0.145.0
-  - gomod: go.opentelemetry.io/collector/exporter/otlpexporter v0.145.0
-  - gomod: go.opentelemetry.io/collector/exporter/otlphttpexporter v0.145.0
-  - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/exporter/fileexporter v0.145.0
+  - gomod: go.opentelemetry.io/collector/exporter/debugexporter v0.150.0
+  - gomod: go.opentelemetry.io/collector/exporter/nopexporter v0.150.0
+  - gomod: go.opentelemetry.io/collector/exporter/otlpexporter v0.150.0
+  - gomod: go.opentelemetry.io/collector/exporter/otlphttpexporter v0.150.0
+  - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/exporter/fileexporter v0.150.0
 
 # Processors: Data transformation and enrichment
+# Note: batchprocessor was removed in the LTS May 2026 release.
+# It has been deprecated upstream (PR #15046) and has a known data loss bug (#12443).
+# Use exporter-level sending_queue + batch configuration instead.
+# See docs/tulip-lts-may2026-upgrade-plan.md for migration details.
 processors:
-  - gomod: go.opentelemetry.io/collector/processor/batchprocessor v0.145.0
-  - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/processor/attributesprocessor v0.145.0
-  - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/processor/resourceprocessor v0.145.0
-  - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/processor/spanprocessor v0.145.0
-  - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/processor/probabilisticsamplerprocessor v0.145.0
-  - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/processor/filterprocessor v0.145.0
-  - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/processor/transformprocessor v0.145.0
+  - gomod: go.opentelemetry.io/collector/processor/memorylimiterprocessor v0.150.0
+  - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/processor/attributesprocessor v0.150.0
+  - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/processor/resourceprocessor v0.150.0
+  - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/processor/spanprocessor v0.150.0
+  - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/processor/probabilisticsamplerprocessor v0.150.0
+  - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/processor/filterprocessor v0.150.0
+  - gomod: github.com/open-telemetry/opentelemetry-collector-contrib/processor/transformprocessor v0.150.0
 
 # Connectors: Pipeline routing
 connectors:
-  - gomod: go.opentelemetry.io/collector/connector/forwardconnector v0.145.0
+  - gomod: go.opentelemetry.io/collector/connector/forwardconnector v0.150.0
 
 # Providers: Configuration sources
 providers:
-  - gomod: go.opentelemetry.io/collector/confmap/provider/envprovider v1.51.0
-  - gomod: go.opentelemetry.io/collector/confmap/provider/fileprovider v1.51.0
-  - gomod: go.opentelemetry.io/collector/confmap/provider/yamlprovider v1.51.0
+  - gomod: go.opentelemetry.io/collector/confmap/provider/envprovider v1.56.0
+  - gomod: go.opentelemetry.io/collector/confmap/provider/fileprovider v1.56.0
+  - gomod: go.opentelemetry.io/collector/confmap/provider/yamlprovider v1.56.0

docs/tulip-lts-may2026-upgrade-plan.md

@@ -0,0 +1,187 @@
+# Tulip LTS May 2026 — Upgrade Plan
+
+## What is an LTS release?
+
+LTS (Long-Term Support) is a release model where a specific version receives extended maintenance, security patches, and bug fixes over a longer period than regular releases. Unlike the upstream OpenTelemetry Collector, which ships new versions roughly every two weeks, an LTS release provides a **stable, validated baseline** that production environments can depend on without the risk of frequent breaking changes.
+
+### Why ship an LTS?
+
+The upstream OpenTelemetry Collector moves fast — new releases every ~2 weeks, components changing stability levels, deprecations, and breaking changes. This velocity is great for innovation but creates challenges for production deployments:
+
+- **Upgrade fatigue:** Keeping up with biweekly releases is unsustainable for teams running the collector at scale.
+- **Stability risk:** Not every upstream release is equally battle-tested. Some introduce regressions that get fixed in the next release.
+- **Component churn:** Components get deprecated (e.g., batchprocessor), replaced, or have their APIs changed. Teams need time to plan migrations.
+- **Support burden:** Supporting arbitrary collector versions is impractical. An LTS gives a defined, tested target.
+
+The Tulip LTS provides:
+
+- **A curated, validated component set** — every component is reviewed for stability, active maintenance, and known issues before inclusion.
+- **A predictable upgrade path** — instead of chasing every upstream release, teams upgrade LTS-to-LTS with clear migration documentation.
+- **Production-ready defaults** — the default configuration includes OOM protection, retry logic.
+- **Extended support window** — security patches and critical fixes backported without requiring a full version upgrade.
+
+## Overview
+
+This document defines the component composition and configuration changes for the Tulip LTS release, targeting May 2026. The LTS follows a **stability-first** approach: only stable/beta components with active maintainers are included.
+
+**Version bump:** v0.145.0 → v0.150.0 (all components)
+
+The target version v0.150.0 was selected as the latest stable upstream release at the time of this LTS cut, verified against the official otelcol-contrib distribution manifest:
+- https://github.com/open-telemetry/opentelemetry-collector-releases/blob/main/distributions/otelcol-contrib/manifest.yaml
+
+---
+
+## Component Changes
+
+### Removed: batchprocessor
+
+**Reason:** The batchprocessor has been formally deprecated in the OpenTelemetry Collector (PR [#15046](https://github.com/open-telemetry/opentelemetry-collector/pull/15046), April 2026). It also has a known data loss bug ([#12443](https://github.com/open-telemetry/opentelemetry-collector/issues/12443)) where data is silently dropped when a downstream exporter rejects and has no queue/retry configured.
+
+**Replacement:** Exporter-level batching via `sending_queue` + `batch` configuration on each exporter. This is the officially recommended path and provides stronger delivery guarantees because:
+
+- Data is durably enqueued in the exporter's persistent sending queue before acknowledgment
+- Batching and queueing are consolidated within the exporter
+- Data can be written to disk and recovered after a Collector restart
+- No silent data loss — failed sends are retried with backoff
+
+#### Migration: before and after
+
+**Before (batchprocessor in pipeline):**
+
+```yaml
+processors:
+  batch:
+    send_batch_size: 8192
+    timeout: 200ms
+
+exporters:
+  otlp:
+    endpoint: otlp.example.com:4317
+
+service:
+  pipelines:
+    traces:
+      receivers: [otlp]
+      processors: [batch]
+      exporters: [otlp]
+```
+
+**After (exporter-level batching):**
+
+```yaml
+exporters:
+  otlp:
+    endpoint: otlp.example.com:4317
+    sending_queue:
+      enabled: true
+      queue_size: 1000
+    batch:
+      flush_timeout: 200ms
+      min_size: 8192
+    retry_on_failure:
+      enabled: true
+      initial_interval: 5s
+      max_interval: 30s
+      max_elapsed_time: 300s
+
+service:
+  pipelines:
+    traces:
+      receivers: [otlp]
+      processors: []
+      exporters: [otlp]
+```
+
+#### References
+
+- Deprecation PR: https://github.com/open-telemetry/opentelemetry-collector/pull/15046
+- Data loss bug: https://github.com/open-telemetry/opentelemetry-collector/issues/12443
+- Resolution discussion: https://github.com/open-telemetry/opentelemetry-collector/issues/15047
+- Docs removal: https://github.com/open-telemetry/opentelemetry-collector/issues/13766
+
+---
+
+### Added: memorylimiterprocessor
+
+**Reason:** Prevents the collector from being OOM-killed in production. Without it, memory spikes from telemetry bursts or slow downstream exporters cause unbounded memory growth, leading to pod eviction (Kubernetes) or host destabilization.
+
+This is a core component (not contrib), stable maturity, and recommended by every major OTel production deployment guide.
+
+**Configuration example:**
+
+```yaml
+processors:
+  memory_limiter:
+    check_interval: 1s
+    limit_mib: 1500
+    spike_limit_mib: 512
+
+service:
+  pipelines:
+    traces:
+      receivers: [otlp]
+      processors: [memory_limiter]
+      exporters: [otlp]
+```
+
+**Note:** `memory_limiter` should be the first processor in every pipeline to ensure backpressure is applied before any processing work is done.
+
+---
+
+## Final LTS Component Manifest (25 components)
+
+### Extensions (7)
+
+| Component | Source | Stability |
+|-----------|--------|-----------|
+| zpagesextension | core | stable |
+| healthcheckextension | contrib | beta |
+| pprofextension | contrib | beta |
+| basicauthextension | contrib | beta |
+| bearertokenauthextension | contrib | beta |
+| oauth2clientauthextension | contrib | beta |
+| oidcauthextension | contrib | beta |
+
+### Receivers (2)
+
+| Component | Source | Stability |
+|-----------|--------|-----------|
+| otlpreceiver | core | stable |
+| nopreceiver | core | stable |
+
+### Exporters (5)
+
+| Component | Source | Stability |
+|-----------|--------|-----------|
+| debugexporter | core | stable |
+| nopexporter | core | stable |
+| otlpexporter | core | stable |
+| otlphttpexporter | core | stable |
+| fileexporter | contrib | beta |
+
+### Processors (7)
+
+| Component | Source | Stability | Note |
+|-----------|--------|-----------|------|
+| memorylimiterprocessor | core | stable | NEW |
+| attributesprocessor | contrib | stable | |
+| resourceprocessor | contrib | stable | |
+| spanprocessor | contrib | stable | |
+| probabilisticsamplerprocessor | contrib | stable | |
+| filterprocessor | contrib | stable | |
+| transformprocessor | contrib | stable | |
+
+### Connectors (1)
+
+| Component | Source | Stability |
+|-----------|--------|-----------|
+| forwardconnector | core | stable |
+
+### Providers (3)
+
+| Component | Source | Stability |
+|-----------|--------|-----------|
+| envprovider | core | stable |
+| fileprovider | core | stable |
+| yamlprovider | core | stable |
+

test/generate-trace.sh

@@ -12,7 +12,7 @@ if [[ -z $distribution ]]; then
     exit 1
 fi
 
-tracegen -otlp-endpoint localhost:4317 -otlp-insecure -service e2e-test &>> ./test/logs/tracegen-${distribution}.log
+tracegen -otlp-endpoint localhost:4317 -otlp-insecure -service e2e-test >> ./test/logs/tracegen-${distribution}.log 2>&1
 if [ $? != 0 ]; then
     echo "Failed to generate a trace."
     exit 1