bigquery.datalab-migration.samples_test: test_datalab_load_table_from_dataframe failed

[flaky-bot]

Note: #7871 was also for this test, but it was closed more than 10 days ago. So, I didn't mark it flaky.

---

commit: 8d60ef4
buildURL: Build Status, Sponge
status: failed

Test output

Traceback (most recent call last):
  File "/workspace/bigquery/datalab-migration/samples_test.py", line 299, in test_datalab_load_table_from_dataframe
    table.insert(dataframe)  # Starts steaming insert of data
  File "/workspace/bigquery/datalab-migration/.nox/py-3-10/lib/python3.10/site-packages/google/datalab/bigquery/_table.py", line 375, in insert
    raise e
  File "/workspace/bigquery/datalab-migration/.nox/py-3-10/lib/python3.10/site-packages/google/datalab/bigquery/_table.py", line 373, in insert
    response = self._api.tabledata_insert_all(self._name_parts, rows)
  File "/workspace/bigquery/datalab-migration/.nox/py-3-10/lib/python3.10/site-packages/google/datalab/bigquery/_api.py", line 433, in tabledata_insert_all
    return google.datalab.utils.Http.request(url, data=data, credentials=self.credentials)
  File "/workspace/bigquery/datalab-migration/.nox/py-3-10/lib/python3.10/site-packages/google/datalab/utils/_http.py", line 158, in request
    raise RequestException(response.status, content)
google.datalab.utils._http.RequestException: HTTP request failed: b''

[parthea]

Transient HTTP error