Failsafe in case config for transaction_processing_store is incorrect (…

…#80463)

If the transactions configuration is wrong for any reason, fall back to
the default processing memorystore.

src/sentry/eventstore/processing/__init__.py

@@ -1,3 +1,4 @@
+import sentry_sdk
 from django.conf import settings
 
 from sentry.eventstore.processing.base import EventProcessingStore
@@ -14,16 +15,26 @@
     settings.SENTRY_TRANSACTION_PROCESSING_STORE
     and settings.SENTRY_TRANSACTION_PROCESSING_STORE_OPTIONS
 ):
-    transaction_processing_store = LazyServiceWrapper(
-        EventProcessingStore,
-        settings.SENTRY_TRANSACTION_PROCESSING_STORE,
-        settings.SENTRY_TRANSACTION_PROCESSING_STORE_OPTIONS,
-    )
+    try:
+        transaction_processing_store = LazyServiceWrapper(
+            EventProcessingStore,
+            settings.SENTRY_TRANSACTION_PROCESSING_STORE,
+            settings.SENTRY_TRANSACTION_PROCESSING_STORE_OPTIONS,
+        )
+    except BaseException as e:
+        sentry_sdk.capture_exception(e)
+        transaction_processing_store = LazyServiceWrapper(
+            EventProcessingStore,
+            settings.SENTRY_EVENT_PROCESSING_STORE,
+            settings.SENTRY_EVENT_PROCESSING_STORE_OPTIONS,
+        )
+
 else:
     transaction_processing_store = LazyServiceWrapper(
         EventProcessingStore,
         settings.SENTRY_EVENT_PROCESSING_STORE,
         settings.SENTRY_EVENT_PROCESSING_STORE_OPTIONS,
     )
 
+
 __all__ = ["event_processing_store", "transaction_processing_store"]