Widen lookback window to be twice the execution frequency

Author: jriv01

premerge/cronjobs/amend_pull_request_data_cronjob.yaml

@@ -5,7 +5,7 @@ metadata:
   namespace: operational-metrics
 spec:
   # Every 2 hours
-  # Frequency must match that of amend_pull_request_data.py
+  # Half of the lookback window in amend_pull_request_data.py
   schedule: "0 */2 * * *"
   timeZone: "Etc/UTC"
   concurrencyPolicy: Forbid

premerge/ops-container/amend_pull_request_data.py

@@ -6,8 +6,8 @@
 from google.cloud import bigquery
 import operational_metrics_lib
 
-# Must match the frequency of cronjobs/amend_pull_request_data_cronjob.yaml
-LOOKBACK_HOURS = 2
+# Twice the frequency of cronjobs/amend_pull_request_data_cronjob.yaml
+LOOKBACK_HOURS = 4
 
 # BigQuery dataset and tables to write metrics to.
 OPERATIONAL_METRICS_DATASET = "operational_metrics"