dify/api/tasks/delete_segment_from_index_task.py

58 lines
2.2 KiB
Python

import logging
import time
import click
from celery import shared_task
from core.index.index import IndexBuilder
from extensions.ext_database import db
from extensions.ext_redis import redis_client
from models.dataset import Dataset, Document, DocumentSegment
from werkzeug.exceptions import NotFound
@shared_task(queue='dataset')
def delete_segment_from_index_task(segment_id: str, index_node_id: str, dataset_id: str, document_id: str):
"""
Async Remove segment from index
:param segment_id:
:param index_node_id:
:param dataset_id:
:param document_id:
Usage: delete_segment_from_index_task.delay(segment_id)
"""
logging.info(click.style('Start delete segment from index: {}'.format(segment_id), fg='green'))
start_at = time.perf_counter()
indexing_cache_key = 'segment_{}_delete_indexing'.format(segment_id)
try:
dataset = db.session.query(Dataset).filter(Dataset.id == dataset_id).first()
if not dataset:
logging.info(click.style('Segment {} has no dataset, pass.'.format(segment_id), fg='cyan'))
return
dataset_document = db.session.query(Document).filter(Document.id == document_id).first()
if not dataset_document:
logging.info(click.style('Segment {} has no document, pass.'.format(segment_id), fg='cyan'))
return
if not dataset_document.enabled or dataset_document.archived or dataset_document.indexing_status != 'completed':
logging.info(click.style('Segment {} document status is invalid, pass.'.format(segment_id), fg='cyan'))
return
vector_index = IndexBuilder.get_index(dataset, 'high_quality')
kw_index = IndexBuilder.get_index(dataset, 'economy')
# delete from vector index
if vector_index:
vector_index.delete_by_ids([index_node_id])
# delete from keyword index
kw_index.delete_by_ids([index_node_id])
end_at = time.perf_counter()
logging.info(click.style('Segment deleted from index: {} latency: {}'.format(segment_id, end_at - start_at), fg='green'))
except Exception:
logging.exception("delete segment from index failed")
finally:
redis_client.delete(indexing_cache_key)