feat(cli): add --workers arg in delete command

metadata-ingestion/src/datahub/cli/delete_cli.py

@@ -1,4 +1,5 @@
 import logging
+from concurrent.futures import ThreadPoolExecutor, as_completed
 from dataclasses import dataclass
 from datetime import datetime
 from random import choices
@@ -345,6 +346,9 @@ def undo_by_filter(
     default=False,
     help="Only delete soft-deleted entities, for hard deletion",
 )
+@click.option(
+    "--workers", type=int, default=1, help="Num of workers to use for deletion."
+)
 @upgrade.check_upgrade
 @telemetry.with_telemetry()
 def by_filter(
@@ -362,6 +366,7 @@ def by_filter(
     batch_size: int,
     dry_run: bool,
     only_soft_deleted: bool,
+    workers: int = 1,
 ) -> None:
     """Delete metadata from datahub using a single urn or a combination of filters."""
 
@@ -382,16 +387,19 @@ def by_filter(
     # TODO: add some validation on entity_type
 
     if not force and not soft and not dry_run:
+        message = (
+            "Hard deletion will permanently delete data from DataHub and can be slow. "
+            "We generally recommend using soft deletes instead. "
+            "Do you want to continue?"
+        )
         if only_soft_deleted:
             click.confirm(
-                "This will permanently delete data from DataHub. Do you want to continue?",
+                message,
                 abort=True,
             )
         else:
             click.confirm(
-                "Hard deletion will permanently delete data from DataHub and can be slow. "
-                "We generally recommend using soft deletes instead. "
-                "Do you want to continue?",
+                message,
                 abort=True,
             )
 
@@ -462,26 +470,64 @@ def by_filter(
                 abort=True,
             )
 
-    urns_iter = urns
-    if not delete_by_urn and not dry_run:
-        urns_iter = progressbar.progressbar(urns, redirect_stdout=True)
+    _delete_urns_parallel(
+        graph=graph,
+        urns=urns,
+        aspect_name=aspect,
+        soft=soft,
+        dry_run=dry_run,
+        delete_by_urn=delete_by_urn,
+        start_time=start_time,
+        end_time=end_time,
+        workers=workers,
+    )
+
 
-    # Run the deletion.
+def _delete_urns_parallel(
+    graph: DataHubGraph,
+    urns: List[str],
+    delete_by_urn: bool,
+    start_time: Optional[datetime],
+    end_time: Optional[datetime],
+    aspect_name: Optional[str] = None,
+    soft: bool = True,
+    dry_run: bool = False,
+    workers: int = 1,
+) -> None:
     deletion_result = DeletionResult()
-    with PerfTimer() as timer:
-        for urn in urns_iter:
-            one_result = _delete_one_urn(
-                graph=graph,
-                urn=urn,
-                aspect_name=aspect,
-                soft=soft,
-                dry_run=dry_run,
-                start_time=start_time,
-                end_time=end_time,
+
+    def process_urn(urn):
+        return _delete_one_urn(
+            graph=graph,
+            urn=urn,
+            aspect_name=aspect_name,
+            soft=soft,
+            dry_run=dry_run,
+            start_time=start_time,
+            end_time=end_time,
+        )
+
+    with PerfTimer() as timer, ThreadPoolExecutor(max_workers=workers) as executor:
+        future_to_urn = {executor.submit(process_urn, urn): urn for urn in urns}
+
+        completed_futures = as_completed(future_to_urn)
+        if not delete_by_urn and not dry_run:
+            futures_iter = progressbar.progressbar(
+                as_completed(future_to_urn),
+                max_value=len(future_to_urn),
+                redirect_stdout=True,
             )
-            deletion_result.merge(one_result)
+        else:
+            futures_iter = completed_futures
+
+        for future in futures_iter:
+            try:
+                one_result = future.result()
+                deletion_result.merge(one_result)
+            except Exception as e:
+                urn = future_to_urn[future]
+                click.secho(f"Error processing URN {urn}: {e}", fg="red")
 
-    # Report out a summary of the deletion result.
     click.echo(
         deletion_result.format_message(
             dry_run=dry_run, soft=soft, time_sec=timer.elapsed_seconds()