dify/api/schedule/create_tidb_serverless_task.py
Yansong Zhang ef50e117da feat: tidb endpoint (#35158)
Backport langgenius/dify#35158 to hotfix branch: persist a per-cluster
qdrant endpoint on TidbAuthBinding so each tenant connects to the
qdrant gateway colocated with its TiDB Serverless cluster instead of a
single global TIDB_ON_QDRANT_URL, which fails for clusters in other
regions.

Adapted to the hotfix branch's pre-monorepo paths
(api/core/rag/datasource/vdb/tidb_on_qdrant/) and direct httpx usage.

Made-with: Cursor
2026-04-27 11:20:33 +08:00

68 lines
2.6 KiB
Python

import time
import click
from sqlalchemy import func, select
import app
from configs import dify_config
from core.rag.datasource.vdb.tidb_on_qdrant.tidb_service import TidbService
from extensions.ext_database import db
from models.dataset import TidbAuthBinding
from models.enums import TidbAuthBindingStatus
@app.celery.task(queue="dataset")
def create_tidb_serverless_task():
click.echo(click.style("Start create tidb serverless task.", fg="green"))
if not dify_config.CREATE_TIDB_SERVICE_JOB_ENABLED:
return
tidb_serverless_number = dify_config.TIDB_SERVERLESS_NUMBER
start_at = time.perf_counter()
while True:
try:
# check the number of idle tidb serverless
idle_tidb_serverless_number = (
db.session.scalar(select(func.count(TidbAuthBinding.id)).where(TidbAuthBinding.active == False)) or 0
)
if idle_tidb_serverless_number >= tidb_serverless_number:
break
# create tidb serverless
iterations_per_thread = 20
create_clusters(iterations_per_thread)
except Exception as e:
click.echo(click.style(f"Error: {e}", fg="red"))
break
end_at = time.perf_counter()
click.echo(click.style(f"Create tidb serverless task success latency: {end_at - start_at}", fg="green"))
def create_clusters(batch_size):
try:
# TODO: maybe we can set the default value for the following parameters in the config file
new_clusters = TidbService.batch_create_tidb_serverless_cluster(
batch_size=batch_size,
project_id=dify_config.TIDB_PROJECT_ID or "",
api_url=dify_config.TIDB_API_URL or "",
iam_url=dify_config.TIDB_IAM_API_URL or "",
public_key=dify_config.TIDB_PUBLIC_KEY or "",
private_key=dify_config.TIDB_PRIVATE_KEY or "",
region=dify_config.TIDB_REGION or "",
)
for new_cluster in new_clusters:
tidb_auth_binding = TidbAuthBinding(
tenant_id=None,
cluster_id=new_cluster["cluster_id"],
cluster_name=new_cluster["cluster_name"],
account=new_cluster["account"],
password=new_cluster["password"],
qdrant_endpoint=new_cluster.get("qdrant_endpoint"),
active=False,
status=TidbAuthBindingStatus.CREATING,
)
db.session.add(tidb_auth_binding)
db.session.commit()
except Exception as e:
click.echo(click.style(f"Error: {e}", fg="red"))