Add pipeline status validation before document deletion

(cherry picked from commit 9d7b7981ce)

lightrag/lightrag.py

@@ -664,6 +664,16 @@ class LightRAG:
             default_workspace = get_default_workspace()
             if default_workspace is None:
                 set_default_workspace(self.workspace)
+            elif default_workspace != self.workspace:
+                logger.warning(
+                    f"Creating LightRAG instance with workspace='{self.workspace}' "
+                    f"but default workspace is already set to '{default_workspace}'."
+                )
+
+            # Auto-initialize pipeline_status for this workspace
+            from lightrag.kg.shared_storage import initialize_pipeline_status
+
+            await initialize_pipeline_status(workspace=self.workspace)
 
             for storage in (
                 self.full_docs,
@@ -1599,8 +1609,12 @@ class LightRAG:
         """
 
         # Get pipeline status shared data and lock
-        pipeline_status = await get_namespace_data("pipeline_status")
+        pipeline_status = await get_namespace_data(
-        pipeline_status_lock = get_namespace_lock("pipeline_status")
+            "pipeline_status", workspace=self.workspace
+        )
+        pipeline_status_lock = get_namespace_lock(
+            "pipeline_status", workspace=self.workspace
+        )
 
         # Check if another process is already processing the queue
         async with pipeline_status_lock:
@@ -2947,14 +2961,39 @@ class LightRAG:
                 - `status_code` (int): HTTP status code (e.g., 200, 404, 500).
                 - `file_path` (str | None): The file path of the deleted document, if available.
         """
+        # Get pipeline status shared data and lock for validation
+        pipeline_status = await get_namespace_data(
+            "pipeline_status", workspace=self.workspace
+        )
+        pipeline_status_lock = get_namespace_lock(
+            "pipeline_status", workspace=self.workspace
+        )
+
+        # Validate pipeline status before proceeding with deletion
+        async with pipeline_status_lock:
+            if not pipeline_status.get("busy", False):
+                return DeletionResult(
+                    status="not_allowed",
+                    doc_id=doc_id,
+                    message="Deletion not allowed: pipeline is not busy",
+                    status_code=403,
+                    file_path=None,
+                )
+
+            job_name = pipeline_status.get("job_name", "").lower()
+            if "deleting" not in job_name or "document" not in job_name:
+                return DeletionResult(
+                    status="not_allowed",
+                    doc_id=doc_id,
+                    message=f"Deletion not allowed: current job '{pipeline_status.get('job_name')}' is not a document deletion job",
+                    status_code=403,
+                    file_path=None,
+                )
+
         deletion_operations_started = False
         original_exception = None
         doc_llm_cache_ids: list[str] = []
 
-        # Get pipeline status shared data and lock for status updates
-        pipeline_status = await get_namespace_data("pipeline_status")
-        pipeline_status_lock = get_namespace_lock("pipeline_status")
-
         async with pipeline_status_lock:
             log_message = f"Starting deletion process for document {doc_id}"
             logger.info(log_message)