fix: flush logs less frequently in preview

jetstream/cli.py

@@ -1690,7 +1690,6 @@ def preview(
             task_profiling_log_table_id=None,
             task_monitoring_log_table_id=None,
             bq_log_level=logging.INFO,
-            capacity=5,
             log_source=LOG_SOURCE.PREVIEW,
         )
         client.delete_table(f"{project_id}.{dataset_id}.logs_{table}")
@@ -1752,6 +1751,13 @@ def preview(
                     experiments=[exp]
                 ),
             )
+        # make sure we've flushed all the logs
+        for handler in logger.root.handlers:
+            try:
+                handler.flush()
+            except AttributeError:
+                # ignore if log handler does not have 'flush'
+                pass
 
         click.echo(
             "A preview is available at: "

pyproject.toml

@@ -6,7 +6,7 @@ build-backend = "setuptools.build_meta"
 name = "mozilla-jetstream"
 # This project does not issue regular releases, only when there
 # are changes that would be meaningful to our (few) dependents.
-version = "2026.5.1"
+version = "2026.5.2"
 authors = [{ name = "Mozilla Corporation", email = "fx-data-dev@mozilla.org" }]
 description = "Runs a thing that analyzes experiments"
 readme = "README.md"