Files
sglang/python/sglang/srt/managers/disagg_service.py
2025-09-07 19:13:34 +08:00

47 lines
1.6 KiB
Python

"""Start bootstrap/kv-store-related server"""
import os
from typing import Type
from sglang.srt.disaggregation.base import BaseKVBootstrapServer
from sglang.srt.disaggregation.utils import (
DisaggregationMode,
KVClassType,
TransferBackend,
get_kv_class,
)
from sglang.srt.server_args import ServerArgs
def start_disagg_service(
server_args: ServerArgs,
):
# Start kv boostrap server on prefill
disagg_mode = DisaggregationMode(server_args.disaggregation_mode)
transfer_backend = TransferBackend(server_args.disaggregation_transfer_backend)
if disagg_mode == DisaggregationMode.PREFILL:
# only start bootstrap server on prefill tm
kv_bootstrap_server_class: Type[BaseKVBootstrapServer] = get_kv_class(
transfer_backend, KVClassType.BOOTSTRAP_SERVER
)
bootstrap_server: BaseKVBootstrapServer = kv_bootstrap_server_class(
host=server_args.host,
port=server_args.disaggregation_bootstrap_port,
)
is_create_store = (
server_args.node_rank == 0 and transfer_backend == TransferBackend.ASCEND
)
if is_create_store:
try:
from mf_adapter import create_config_store
ascend_url = os.getenv("ASCEND_MF_STORE_URL")
create_config_store(ascend_url)
except Exception as e:
error_message = f"Failed create mf store, invalid ascend_url."
error_message += f" With exception {e}"
raise error_message
return bootstrap_server