add metric for overall report size (#583)

.gitignore

@@ -131,4 +131,7 @@ background_app/.report.json
 *.swo
 
 # Pycharm/Intellij
-.idea/
+.idea/
+
+.sl
+.git

services/report/__init__.py

@@ -55,6 +55,11 @@
 )
 from services.report.parser import get_proper_parser
 from services.report.parser.types import ParsedRawReport
+from services.report.parser.version_one import VersionOneReportParser
+from services.report.prometheus_metrics import (
+    RAW_UPLOAD_RAW_REPORT_COUNT,
+    RAW_UPLOAD_SIZE,
+)
 from services.report.raw_upload_processor import process_raw_upload
 from services.repository import get_repo_provider_service
 from services.yaml.reader import get_paths_from_flags, read_yaml_field
@@ -914,7 +919,17 @@ def parse_raw_report_from_storage(
 
         parser = get_proper_parser(upload)
 
+        upload_version = (
+            "v1" if isinstance(parser, VersionOneReportParser) else "legacy"
+        )
+        RAW_UPLOAD_SIZE.labels(version=upload_version).observe(len(archive_file))
+
         raw_uploaded_report = parser.parse_raw_report_from_bytes(archive_file)
+
+        RAW_UPLOAD_RAW_REPORT_COUNT.labels(version=upload_version).observe(
+            len(raw_uploaded_report.get_uploaded_files())
+        )
+
         return raw_uploaded_report
 
     @sentry_sdk.trace

services/report/prometheus_metrics.py

@@ -0,0 +1,27 @@
+from shared.metrics import Histogram
+
+KiB = 1024
+MiB = KiB * KiB
+RAW_UPLOAD_SIZE = Histogram(
+    "worker_services_report_raw_upload_size",
+    "Size (in bytes) of a raw upload (which may contain several raw reports)",
+    ["version"],
+    buckets=[
+        100 * KiB,
+        500 * KiB,
+        1 * MiB,
+        5 * MiB,
+        10 * MiB,
+        50 * MiB,
+        100 * MiB,
+        200 * MiB,
+        500 * MiB,
+    ],
+)
+
+RAW_UPLOAD_RAW_REPORT_COUNT = Histogram(
+    "worker_services_report_raw_upload_raw_report_count",
+    "Number of raw coverage files contained in a raw upload",
+    ["version"],
+    buckets=[1, 5, 10, 20, 50],
+)