[data] Add usage tag for which block formats are used

python/ray/data/_internal/execution/legacy_compat.py

@@ -8,7 +8,7 @@
 
 import ray
 from ray.data._internal.logical.optimizers import get_execution_plan
-from ray.data._internal.logical.util import record_operators_usage
+from ray.data._internal.usage import record_operators_usage
 from ray.data.context import DataContext
 from ray.types import ObjectRef
 from ray.data.block import Block, BlockMetadata, List

python/ray/data/_internal/logical/util.py → python/ray/data/_internal/usage.py

@@ -1,15 +1,18 @@
-from typing import Dict
+from typing import Dict, TYPE_CHECKING
 import json
 import threading
 
 from ray._private.usage.usage_lib import TagKey, record_extra_usage_tag
-from ray.data._internal.logical.interfaces import LogicalOperator
-from ray.data._internal.logical.operators.read_operator import Read
-from ray.data._internal.logical.operators.write_operator import Write
 
+if TYPE_CHECKING:
+    from ray.data._internal.logical.interfaces import LogicalOperator
+
+# Guards the below dicts.
+_recording_lock = threading.Lock()
 # The dictionary for the operator name and count.
 _recorded_operators = dict()
-_recorded_operators_lock = threading.Lock()
+# The dictionary for the block format name and count.
+_recorded_block_formats = dict()
 
 # The white list of operator names allowed to be recorded.
 _op_name_white_list = [
@@ -59,12 +62,21 @@
 ]
 
 
-def record_operators_usage(op: LogicalOperator):
+def record_block_format_usage(block_format: str):
+    with _recording_lock:
+        _recorded_block_formats.setdefault(block_format, 0)
+        _recorded_block_formats[block_format] += 1
+        formats_json_str = json.dumps(_recorded_block_formats)
+
+    record_extra_usage_tag(TagKey.DATA_BLOCK_FORMATS, formats_json_str)
+
+
+def record_operators_usage(op: "LogicalOperator"):
     """Record logical operator usage with Ray telemetry."""
     ops_dict = dict()
     _collect_operators_to_dict(op, ops_dict)
     ops_json_str = ""
-    with _recorded_operators_lock:
+    with _recording_lock:
         for op, count in ops_dict.items():
             _recorded_operators.setdefault(op, 0)
             _recorded_operators[op] += count
@@ -73,8 +85,11 @@ def record_operators_usage(op: LogicalOperator):
     record_extra_usage_tag(TagKey.DATA_LOGICAL_OPS, ops_json_str)
 
 
-def _collect_operators_to_dict(op: LogicalOperator, ops_dict: Dict[str, int]):
+def _collect_operators_to_dict(op: "LogicalOperator", ops_dict: Dict[str, int]):
     """Collect the logical operator name and count into `ops_dict`."""
+    from ray.data._internal.logical.operators.read_operator import Read
+    from ray.data._internal.logical.operators.write_operator import Write
+
     for child in op.input_dependencies:
         _collect_operators_to_dict(child, ops_dict)
 

python/ray/data/block.py

@@ -21,6 +21,7 @@
 import ray
 from ray import ObjectRefGenerator
 from ray.data._internal.util import _check_pyarrow_version
+from ray.data._internal.usage import record_block_format_usage
 from ray.types import ObjectRef
 from ray.util.annotations import DeveloperAPI
 
@@ -386,18 +387,22 @@ def for_block(block: Block) -> "BlockAccessor[T]":
         if isinstance(block, pyarrow.Table):
             from ray.data._internal.arrow_block import ArrowBlockAccessor
 
+            record_block_format_usage("arrow")
             return ArrowBlockAccessor(block)
         elif isinstance(block, pandas.DataFrame):
             from ray.data._internal.pandas_block import PandasBlockAccessor
 
+            record_block_format_usage("pandas")
             return PandasBlockAccessor(block)
         elif isinstance(block, bytes):
             from ray.data._internal.arrow_block import ArrowBlockAccessor
 
+            record_block_format_usage("arrow")
             return ArrowBlockAccessor.from_bytes(block)
         elif isinstance(block, list):
             from ray.data._internal.simple_block import SimpleBlockAccessor
 
+            record_block_format_usage("simple")
             return SimpleBlockAccessor(block)
         else:
             raise TypeError("Not a block type: {} ({})".format(block, type(block)))

python/ray/data/tests/test_execution_optimizer.py

@@ -42,7 +42,7 @@
     FlatMap,
 )
 from ray.data._internal.logical.operators.n_ary_operator import Zip
-from ray.data._internal.logical.util import (
+from ray.data._internal.usage import (
     _recorded_operators,
     _recorded_operators_lock,
     _op_name_white_list,

python/ray/data/tests/test_util.py

@@ -3,6 +3,7 @@
 import numpy as np
 
 from ray.data._internal.util import _check_pyarrow_version, _split_list
+from ray.data._internal.usage import _recorded_block_formats
 from ray.data._internal.memory_tracing import (
     trace_allocation,
     trace_deallocation,
@@ -11,6 +12,16 @@
 from ray.data.tests.conftest import *  # noqa: F401, F403
 
 
+def test_block_format_usage():
+    assert not _recorded_block_formats
+    ray.data.range(10).show()
+    assert set(_recorded_block_formats.keys()) == {"simple"}
+    ray.data.range_table(10).show()
+    assert set(_recorded_block_formats.keys()) == {"simple", "arrow"}
+    ray.data.range_table(10).map_batches(lambda x: x).show()
+    assert set(_recorded_block_formats.keys()) == {"simple", "arrow", "pandas"}
+
+
 def test_check_pyarrow_version_bounds(unsupported_pyarrow_version):
     # Test that pyarrow versions outside of the defined bounds cause an ImportError to
     # be raised.

src/ray/protobuf/usage.proto

@@ -119,6 +119,9 @@ enum TagKey {
   // Logical operators, stored in JSON format with operator name and count.
   // Example: {"MapBatches": 2, "Filter": 1}
   DATA_LOGICAL_OPS = 400;
+  // Block formats: simple, pandas, or arrow.
+  // Example: {"pandas": 2, "numpy": 1}
+  DATA_BLOCK_FORMATS = 401;
 
   // AIR
   // Name of AIR trainer, or "Custom" if user-defined.