debug: Add logging to diagnose artifact_version issue

Author: slice4e

redis_benchmarks_specification/__common__/runner.py

@@ -275,6 +275,9 @@ def export_redis_metrics(
         by_variants["by.branch/{}".format(tf_github_branch)] = {
             "branch": tf_github_branch
         }
+    logging.info(
+        f"export_redis_metrics: artifact_version={artifact_version} (type={type(artifact_version)}), git_hash={git_hash}, tf_github_branch={tf_github_branch}"
+    )
     if git_hash is not None and git_hash != "":
         by_variants["by.hash/{}".format(git_hash)] = {"hash": git_hash}
         if artifact_version is not None and artifact_version != "":
@@ -283,6 +286,11 @@ def export_redis_metrics(
         by_variants["by.version/{}".format(artifact_version)] = {
             "version": artifact_version
         }
+        logging.info(f"Created by.version variant for version: {artifact_version}")
+    else:
+        logging.warning(
+            f"Skipping by.version variant creation: artifact_version={artifact_version}"
+        )
     for (
         by_variant,
         variant_labels_dict,