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Cannot load the dataset split (in streaming mode) to extract the first rows.
Error code:   StreamingRowsError
Exception:    CastError
Message:      Couldn't cast
sessionId: string
repository: string
repositoryUrl: string
repositoryCreated: bool
batch: int64
batchName: string
purpose: string
createdAtMs: int64
sync: struct<state: string, pendingUploads: int64, acceptedUploads: int64, lastPublishedAtMs: int64, lastC (... 30 chars omitted)
  child 0, state: string
  child 1, pendingUploads: int64
  child 2, acceptedUploads: int64
  child 3, lastPublishedAtMs: int64
  child 4, lastCommit: string
  child 5, retrying: bool
latest: struct<uploadId: string, state: string, cloudRunId: string, updatedAtMs: int64, receivedAtMs: int64, (... 346 chars omitted)
  child 0, uploadId: string
  child 1, state: string
  child 2, cloudRunId: string
  child 3, updatedAtMs: int64
  child 4, receivedAtMs: int64
  child 5, appVersion: string
  child 6, smokeTest: bool
  child 7, completedAnswers: int64
  child 8, queue: struct<status: string, stage: string>
      child 0, status: string
      child 1, stage: string
  child 9, configurations: list<item: struct<id: string, status: string, completed: int64, total: int64>>
      child 0, item: struct<id: string, status: string, completed: int64, total: int64>
          child 0, id: string
          child 1, status: string
          child 2, completed: int64
          child 3, total: int64
  child 10, device: struct<manufacturer: string, model: string, socManufacturer: string, socModel: string, androidReleas (... 10 chars omitted)
      child 0, manufacturer: string
      child 1, model: string
      child 2, socManufacturer: string
      child 3, socModel: string
      child 4, androidRelease: string
  child 11, clientReported: bool
url: string
serviceInstanceId: string
stable: bool
verifiedAtHour: timestamp[s]
note: string
service: string
to
{'service': Value('string'), 'url': Value('string'), 'serviceInstanceId': Value('string'), 'stable': Value('bool'), 'note': Value('string'), 'verifiedAtHour': Value('timestamp[s]')}
because column names don't match
Traceback:    Traceback (most recent call last):
                File "/src/services/worker/src/worker/utils.py", line 149, in get_rows_or_raise
                  return get_rows(
                      dataset=dataset,
                  ...<4 lines>...
                      column_names=column_names,
                  )
                File "/src/libs/libcommon/src/libcommon/utils.py", line 272, in decorator
                  return func(*args, **kwargs)
                File "/src/services/worker/src/worker/utils.py", line 129, in get_rows
                  rows_plus_one = list(itertools.islice(safe_iter(ds, dataset=dataset), rows_max_number + 1))
                File "/src/services/worker/src/worker/utils.py", line 544, in safe_iter
                  yield from ds.decode(False) if ds.features else ds
                File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 3052, in __iter__
                  for key, example in ex_iterable:
                                      ^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2559, in __iter__
                  for key, pa_table in self._iter_arrow():
                                       ~~~~~~~~~~~~~~~~^^
                File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2584, in _iter_arrow
                  for key, pa_table in self.ex_iterable._iter_arrow():
                                       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
                File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 558, in _iter_arrow
                  for key, pa_table in iterator:
                                       ^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 440, in _iter_arrow
                  for key, pa_table in self.generate_tables_fn(**gen_kwags):
                                       ~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 361, in _generate_tables
                  self._cast_table(pa_table, json_field_paths=json_field_paths),
                  ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 132, in _cast_table
                  pa_table = table_cast(pa_table, self.info.features.arrow_schema)
                File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2381, in table_cast
                  return cast_table_to_schema(table, schema)
                File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2309, in cast_table_to_schema
                  raise CastError(
                  ...<3 lines>...
                  )
              datasets.table.CastError: Couldn't cast
              sessionId: string
              repository: string
              repositoryUrl: string
              repositoryCreated: bool
              batch: int64
              batchName: string
              purpose: string
              createdAtMs: int64
              sync: struct<state: string, pendingUploads: int64, acceptedUploads: int64, lastPublishedAtMs: int64, lastC (... 30 chars omitted)
                child 0, state: string
                child 1, pendingUploads: int64
                child 2, acceptedUploads: int64
                child 3, lastPublishedAtMs: int64
                child 4, lastCommit: string
                child 5, retrying: bool
              latest: struct<uploadId: string, state: string, cloudRunId: string, updatedAtMs: int64, receivedAtMs: int64, (... 346 chars omitted)
                child 0, uploadId: string
                child 1, state: string
                child 2, cloudRunId: string
                child 3, updatedAtMs: int64
                child 4, receivedAtMs: int64
                child 5, appVersion: string
                child 6, smokeTest: bool
                child 7, completedAnswers: int64
                child 8, queue: struct<status: string, stage: string>
                    child 0, status: string
                    child 1, stage: string
                child 9, configurations: list<item: struct<id: string, status: string, completed: int64, total: int64>>
                    child 0, item: struct<id: string, status: string, completed: int64, total: int64>
                        child 0, id: string
                        child 1, status: string
                        child 2, completed: int64
                        child 3, total: int64
                child 10, device: struct<manufacturer: string, model: string, socManufacturer: string, socModel: string, androidReleas (... 10 chars omitted)
                    child 0, manufacturer: string
                    child 1, model: string
                    child 2, socManufacturer: string
                    child 3, socModel: string
                    child 4, androidRelease: string
                child 11, clientReported: bool
              url: string
              serviceInstanceId: string
              stable: bool
              verifiedAtHour: timestamp[s]
              note: string
              service: string
              to
              {'service': Value('string'), 'url': Value('string'), 'serviceInstanceId': Value('string'), 'stable': Value('bool'), 'note': Value('string'), 'verifiedAtHour': Value('timestamp[s]')}
              because column names don't match

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Mobile benchmark relay index

  • sessions.json: every relay session and its public dataset (vinyteles/mobilebench-relay-*). Device fields and counts are client-reported. Sessions with purpose synthetic-test are transport tests.
  • endpoint.json: the currently verified relay URL. It is a temporary tunnel URL and can change.

Session repositories: https://huggingface.co/datasets/vinyteles/mobilebench-relay-…

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