feat(spans): Add DLQ topic for buffered spans (#68571)

Add DLQ to buffered-segments topic

src/sentry/conf/server.py

@@ -3484,6 +3484,7 @@ KAFKA_TOPIC_TO_CLUSTER: Mapping[str, str] = {
     "snuba-spans": "default",
     "shared-resources-usage": "default",
     "buffered-segments": "default",
+    "buffered-segments-dlq": "default",
 }
 
 

src/sentry/conf/types/kafka_definition.py

@@ -48,6 +48,7 @@ class Topic(Enum):
     SHARED_RESOURCES_USAGE = "shared-resources-usage"
     SNUBA_SPANS = "snuba-spans"
     BUFFERED_SEGMENTS = "buffered-segments"
+    BUFFERED_SEGMENTS_DLQ = "buffered-segments-dlq"
 
 
 class ConsumerDefinition(TypedDict, total=False):

src/sentry/consumers/__init__.py

@@ -349,6 +349,7 @@ KAFKA_CONSUMERS: Mapping[str, ConsumerDefinition] = {
         "topic": Topic.BUFFERED_SEGMENTS,
         "strategy_factory": "sentry.spans.consumers.detect_performance_issues.factory.DetectPerformanceIssuesStrategyFactory",
         "click_options": multiprocessing_options(default_max_batch_size=100),
+        "dlq_topic": Topic.BUFFERED_SEGMENTS_DLQ,
     },
     **settings.SENTRY_KAFKA_CONSUMERS,
 }