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Unverified Commit d9a3e4db authored by Timothy Jaeryang Baek's avatar Timothy Jaeryang Baek Committed by GitHub
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Merge pull request #2731 from cheahjs/fix/ollama-cancellation 

fix: ollama and openai stream cancellation
parents 27ff3ab1 c5ff4c24
Hide whitespace changes
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Showing with 186 additions and 503 deletions
backend/apps/ollama/main.py
View file @ d9a3e4db
......@@ -29,6 +29,8 @@ import time
from urllib.parse import urlparse
from typing import Optional, List, Union
from starlette.background import BackgroundTask
from apps.webui.models.models import Models
from apps.webui.models.users import Users
from constants import ERROR_MESSAGES
......@@ -75,9 +77,6 @@ app.state.config.OLLAMA_BASE_URLS = OLLAMA_BASE_URLS
app.state.MODELS = {}
REQUEST_POOL = []
# TODO: Implement a more intelligent load balancing mechanism for distributing requests among multiple backend instances.
# Current implementation uses a simple round-robin approach (random.choice). Consider incorporating algorithms like weighted round-robin,
# least connections, or least response time for better resource utilization and performance optimization.
......@@ -132,16 +131,6 @@ async def update_ollama_api_url(form_data: UrlUpdateForm, user=Depends(get_admin
return {"OLLAMA_BASE_URLS": app.state.config.OLLAMA_BASE_URLS}
@app.get("/cancel/{request_id}")
async def cancel_ollama_request(request_id: str, user=Depends(get_current_user)):
if user:
if request_id in REQUEST_POOL:
REQUEST_POOL.remove(request_id)
return True
else:
raise HTTPException(status_code=401, detail=ERROR_MESSAGES.ACCESS_PROHIBITED)
async def fetch_url(url):
timeout = aiohttp.ClientTimeout(total=5)
try:
......@@ -154,6 +143,45 @@ async def fetch_url(url):
return None
async def cleanup_response(
response: Optional[aiohttp.ClientResponse],
session: Optional[aiohttp.ClientSession],
):
if response:
response.close()
if session:
await session.close()
async def post_streaming_url(url: str, payload: str):
r = None
try:
session = aiohttp.ClientSession()
r = await session.post(url, data=payload)
r.raise_for_status()
return StreamingResponse(
r.content,
status_code=r.status,
headers=dict(r.headers),
background=BackgroundTask(cleanup_response, response=r, session=session),
)
except Exception as e:
error_detail = "Open WebUI: Server Connection Error"
if r is not None:
try:
res = await r.json()
if "error" in res:
error_detail = f"Ollama: {res['error']}"
except:
error_detail = f"Ollama: {e}"
raise HTTPException(
status_code=r.status if r else 500,
detail=error_detail,
)
def merge_models_lists(model_lists):
merged_models = {}
......@@ -313,65 +341,7 @@ async def pull_model(
# Admin should be able to pull models from any source
payload = {**form_data.model_dump(exclude_none=True), "insecure": True}
def get_request():
nonlocal url
nonlocal r
request_id = str(uuid.uuid4())
try:
REQUEST_POOL.append(request_id)
def stream_content():
try:
yield json.dumps({"id": request_id, "done": False}) + "\n"
for chunk in r.iter_content(chunk_size=8192):
if request_id in REQUEST_POOL:
yield chunk
else:
log.warning("User: canceled request")
break
finally:
if hasattr(r, "close"):
r.close()
if request_id in REQUEST_POOL:
REQUEST_POOL.remove(request_id)
r = requests.request(
method="POST",
url=f"{url}/api/pull",
data=json.dumps(payload),
stream=True,
)
r.raise_for_status()
return StreamingResponse(
stream_content(),
status_code=r.status_code,
headers=dict(r.headers),
)
except Exception as e:
raise e
try:
return await run_in_threadpool(get_request)
except Exception as e:
log.exception(e)
error_detail = "Open WebUI: Server Connection Error"
if r is not None:
try:
res = r.json()
if "error" in res:
error_detail = f"Ollama: {res['error']}"
except:
error_detail = f"Ollama: {e}"
raise HTTPException(
status_code=r.status_code if r else 500,
detail=error_detail,
)
return await post_streaming_url(f"{url}/api/pull", json.dumps(payload))
class PushModelForm(BaseModel):
......@@ -399,50 +369,9 @@ async def push_model(
url = app.state.config.OLLAMA_BASE_URLS[url_idx]
log.debug(f"url: {url}")
r = None
def get_request():
nonlocal url
nonlocal r
try:
def stream_content():
for chunk in r.iter_content(chunk_size=8192):
yield chunk
r = requests.request(
method="POST",
url=f"{url}/api/push",
data=form_data.model_dump_json(exclude_none=True).encode(),
)
r.raise_for_status()
return StreamingResponse(
stream_content(),
status_code=r.status_code,
headers=dict(r.headers),
)
except Exception as e:
raise e
try:
return await run_in_threadpool(get_request)
except Exception as e:
log.exception(e)
error_detail = "Open WebUI: Server Connection Error"
if r is not None:
try:
res = r.json()
if "error" in res:
error_detail = f"Ollama: {res['error']}"
except:
error_detail = f"Ollama: {e}"
raise HTTPException(
status_code=r.status_code if r else 500,
detail=error_detail,
)
return await post_streaming_url(
f"{url}/api/push", form_data.model_dump_json(exclude_none=True).encode()
)
class CreateModelForm(BaseModel):
......@@ -461,53 +390,9 @@ async def create_model(
url = app.state.config.OLLAMA_BASE_URLS[url_idx]
log.info(f"url: {url}")
r = None
def get_request():
nonlocal url
nonlocal r
try:
def stream_content():
for chunk in r.iter_content(chunk_size=8192):
yield chunk
r = requests.request(
method="POST",
url=f"{url}/api/create",
data=form_data.model_dump_json(exclude_none=True).encode(),
stream=True,
)
r.raise_for_status()
log.debug(f"r: {r}")
return StreamingResponse(
stream_content(),
status_code=r.status_code,
headers=dict(r.headers),
)
except Exception as e:
raise e
try:
return await run_in_threadpool(get_request)
except Exception as e:
log.exception(e)
error_detail = "Open WebUI: Server Connection Error"
if r is not None:
try:
res = r.json()
if "error" in res:
error_detail = f"Ollama: {res['error']}"
except:
error_detail = f"Ollama: {e}"
raise HTTPException(
status_code=r.status_code if r else 500,
detail=error_detail,
)
return await post_streaming_url(
f"{url}/api/create", form_data.model_dump_json(exclude_none=True).encode()
)
class CopyModelForm(BaseModel):
......@@ -797,66 +682,9 @@ async def generate_completion(
url = app.state.config.OLLAMA_BASE_URLS[url_idx]
log.info(f"url: {url}")
r = None
def get_request():
nonlocal form_data
nonlocal r
request_id = str(uuid.uuid4())
try:
REQUEST_POOL.append(request_id)
def stream_content():
try:
if form_data.stream:
yield json.dumps({"id": request_id, "done": False}) + "\n"
for chunk in r.iter_content(chunk_size=8192):
if request_id in REQUEST_POOL:
yield chunk
else:
log.warning("User: canceled request")
break
finally:
if hasattr(r, "close"):
r.close()
if request_id in REQUEST_POOL:
REQUEST_POOL.remove(request_id)
r = requests.request(
method="POST",
url=f"{url}/api/generate",
data=form_data.model_dump_json(exclude_none=True).encode(),
stream=True,
)
r.raise_for_status()
return StreamingResponse(
stream_content(),
status_code=r.status_code,
headers=dict(r.headers),
)
except Exception as e:
raise e
try:
return await run_in_threadpool(get_request)
except Exception as e:
error_detail = "Open WebUI: Server Connection Error"
if r is not None:
try:
res = r.json()
if "error" in res:
error_detail = f"Ollama: {res['error']}"
except:
error_detail = f"Ollama: {e}"
raise HTTPException(
status_code=r.status_code if r else 500,
detail=error_detail,
)
return await post_streaming_url(
f"{url}/api/generate", form_data.model_dump_json(exclude_none=True).encode()
)
class ChatMessage(BaseModel):
......@@ -1014,67 +842,7 @@ async def generate_chat_completion(
print(payload)
r = None
def get_request():
nonlocal payload
nonlocal r
request_id = str(uuid.uuid4())
try:
REQUEST_POOL.append(request_id)
def stream_content():
try:
if payload.get("stream", None):
yield json.dumps({"id": request_id, "done": False}) + "\n"
for chunk in r.iter_content(chunk_size=8192):
if request_id in REQUEST_POOL:
yield chunk
else:
log.warning("User: canceled request")
break
finally:
if hasattr(r, "close"):
r.close()
if request_id in REQUEST_POOL:
REQUEST_POOL.remove(request_id)
r = requests.request(
method="POST",
url=f"{url}/api/chat",
data=json.dumps(payload),
stream=True,
)
r.raise_for_status()
return StreamingResponse(
stream_content(),
status_code=r.status_code,
headers=dict(r.headers),
)
except Exception as e:
log.exception(e)
raise e
try:
return await run_in_threadpool(get_request)
except Exception as e:
error_detail = "Open WebUI: Server Connection Error"
if r is not None:
try:
res = r.json()
if "error" in res:
error_detail = f"Ollama: {res['error']}"
except:
error_detail = f"Ollama: {e}"
raise HTTPException(
status_code=r.status_code if r else 500,
detail=error_detail,
)
return await post_streaming_url(f"{url}/api/chat", json.dumps(payload))
# TODO: we should update this part once Ollama supports other types
......@@ -1165,68 +933,7 @@ async def generate_openai_chat_completion(
url = app.state.config.OLLAMA_BASE_URLS[url_idx]
log.info(f"url: {url}")
r = None
def get_request():
nonlocal payload
nonlocal r
request_id = str(uuid.uuid4())
try:
REQUEST_POOL.append(request_id)
def stream_content():
try:
if payload.get("stream"):
yield json.dumps(
{"request_id": request_id, "done": False}
) + "\n"
for chunk in r.iter_content(chunk_size=8192):
if request_id in REQUEST_POOL:
yield chunk
else:
log.warning("User: canceled request")
break
finally:
if hasattr(r, "close"):
r.close()
if request_id in REQUEST_POOL:
REQUEST_POOL.remove(request_id)
r = requests.request(
method="POST",
url=f"{url}/v1/chat/completions",
data=json.dumps(payload),
stream=True,
)
r.raise_for_status()
return StreamingResponse(
stream_content(),
status_code=r.status_code,
headers=dict(r.headers),
)
except Exception as e:
raise e
try:
return await run_in_threadpool(get_request)
except Exception as e:
error_detail = "Open WebUI: Server Connection Error"
if r is not None:
try:
res = r.json()
if "error" in res:
error_detail = f"Ollama: {res['error']}"
except:
error_detail = f"Ollama: {e}"
raise HTTPException(
status_code=r.status_code if r else 500,
detail=error_detail,
)
return await post_streaming_url(f"{url}/v1/chat/completions", json.dumps(payload))
@app.get("/v1/models")
......@@ -1555,7 +1262,7 @@ async def deprecated_proxy(
if path == "generate":
data = json.loads(body.decode("utf-8"))
if not ("stream" in data and data["stream"] == False):
if data.get("stream", True):
yield json.dumps({"id": request_id, "done": False}) + "\n"
elif path == "chat":
......
backend/apps/openai/main.py
View file @ d9a3e4db
......@@ -9,6 +9,7 @@ import json
import logging
from pydantic import BaseModel
from starlette.background import BackgroundTask
from apps.webui.models.models import Models
from apps.webui.models.users import Users
......@@ -194,6 +195,16 @@ async def fetch_url(url, key):
return None
async def cleanup_response(
response: Optional[aiohttp.ClientResponse],
session: Optional[aiohttp.ClientSession],
):
if response:
response.close()
if session:
await session.close()
def merge_models_lists(model_lists):
log.debug(f"merge_models_lists {model_lists}")
merged_list = []
......@@ -447,40 +458,48 @@ async def proxy(path: str, request: Request, user=Depends(get_verified_user)):
headers["Content-Type"] = "application/json"
r = None
session = None
streaming = False
try:
r = requests.request(
session = aiohttp.ClientSession()
r = await session.request(
method=request.method,
url=target_url,
data=payload if payload else body,
headers=headers,
stream=True,
)
r.raise_for_status()
# Check if response is SSE
if "text/event-stream" in r.headers.get("Content-Type", ""):
streaming = True
return StreamingResponse(
r.iter_content(chunk_size=8192),
status_code=r.status_code,
r.content,
status_code=r.status,
headers=dict(r.headers),
background=BackgroundTask(
cleanup_response, response=r, session=session
),
)
else:
response_data = r.json()
response_data = await r.json()
return response_data
except Exception as e:
log.exception(e)
error_detail = "Open WebUI: Server Connection Error"
if r is not None:
try:
res = r.json()
res = await r.json()
print(res)
if "error" in res:
error_detail = f"External: {res['error']['message'] if 'message' in res['error'] else res['error']}"
except:
error_detail = f"External: {e}"
raise HTTPException(
status_code=r.status_code if r else 500, detail=error_detail
)
raise HTTPException(status_code=r.status if r else 500, detail=error_detail)
finally:
if not streaming and session:
if r:
r.close()
await session.close()
src/lib/apis/ollama/index.ts
View file @ d9a3e4db
......@@ -369,27 +369,6 @@ export const generateChatCompletion = async (token: string = '', body: object) =
return [res, controller];
};
export const cancelOllamaRequest = async (token: string = '', requestId: string) => {
let error = null;
const res = await fetch(`${OLLAMA_API_BASE_URL}/cancel/${requestId}`, {
method: 'GET',
headers: {
'Content-Type': 'text/event-stream',
Authorization: `Bearer ${token}`
}
}).catch((err) => {
error = err;
return null;
});
if (error) {
throw error;
}
return res;
};
export const createModel = async (token: string, tagName: string, content: string) => {
let error = null;
......@@ -461,8 +440,10 @@ export const deleteModel = async (token: string, tagName: string, urlIdx: string
export const pullModel = async (token: string, tagName: string, urlIdx: string | null = null) => {
let error = null;
const controller = new AbortController();
const res = await fetch(`${OLLAMA_API_BASE_URL}/api/pull${urlIdx !== null ? `/${urlIdx}` : ''}`, {
signal: controller.signal,
method: 'POST',
headers: {
Accept: 'application/json',
......@@ -485,7 +466,7 @@ export const pullModel = async (token: string, tagName: string, urlIdx: string |
if (error) {
throw error;
}
return res;
return [res, controller];
};
export const downloadModel = async (
......
src/lib/components/chat/Chat.svelte
View file @ d9a3e4db
......@@ -26,7 +26,7 @@
splitStream
} from '$lib/utils';
import { cancelOllamaRequest, generateChatCompletion } from '$lib/apis/ollama';
import { generateChatCompletion } from '$lib/apis/ollama';
import {
addTagById,
createNewChat,
......@@ -65,7 +65,6 @@
let autoScroll = true;
let processing = '';
let messagesContainerElement: HTMLDivElement;
let currentRequestId = null;
let showModelSelector = true;
......@@ -130,10 +129,6 @@
//////////////////////////
const initNewChat = async () => {
if (currentRequestId !== null) {
await cancelOllamaRequest(localStorage.token, currentRequestId);
currentRequestId = null;
}
window.history.replaceState(history.state, '', `/`);
await chatId.set('');
......@@ -616,7 +611,6 @@
if (stopResponseFlag) {
controller.abort('User: Stop Response');
await cancelOllamaRequest(localStorage.token, currentRequestId);
} else {
const messages = createMessagesList(responseMessageId);
const res = await chatCompleted(localStorage.token, {
......@@ -647,8 +641,6 @@
}
}
currentRequestId = null;
break;
}
......@@ -669,63 +661,58 @@
throw data;
}
if ('id' in data) {
console.log(data);
currentRequestId = data.id;
} else {
if (data.done == false) {
if (responseMessage.content == '' && data.message.content == '\n') {
continue;
} else {
responseMessage.content += data.message.content;
messages = messages;
}
if (data.done == false) {
if (responseMessage.content == '' && data.message.content == '\n') {
continue;
} else {
responseMessage.done = true;
if (responseMessage.content == '') {
responseMessage.error = {
code: 400,
content: `Oops! No text generated from Ollama, Please try again.`
};
}
responseMessage.context = data.context ?? null;
responseMessage.info = {
total_duration: data.total_duration,
load_duration: data.load_duration,
sample_count: data.sample_count,
sample_duration: data.sample_duration,
prompt_eval_count: data.prompt_eval_count,
prompt_eval_duration: data.prompt_eval_duration,
eval_count: data.eval_count,
eval_duration: data.eval_duration
};
responseMessage.content += data.message.content;
messages = messages;
}
} else {
responseMessage.done = true;
if ($settings.notificationEnabled && !document.hasFocus()) {
const notification = new Notification(
selectedModelfile
? `${
selectedModelfile.title.charAt(0).toUpperCase() +
selectedModelfile.title.slice(1)
}`
: `${model}`,
{
body: responseMessage.content,
icon: selectedModelfile?.imageUrl ?? `${WEBUI_BASE_URL}/static/favicon.png`
}
);
}
if ($settings.responseAutoCopy) {
copyToClipboard(responseMessage.content);
}
if ($settings.responseAutoPlayback) {
await tick();
document.getElementById(`speak-button-${responseMessage.id}`)?.click();
}
if (responseMessage.content == '') {
responseMessage.error = {
code: 400,
content: `Oops! No text generated from Ollama, Please try again.`
};
}
responseMessage.context = data.context ?? null;
responseMessage.info = {
total_duration: data.total_duration,
load_duration: data.load_duration,
sample_count: data.sample_count,
sample_duration: data.sample_duration,
prompt_eval_count: data.prompt_eval_count,
prompt_eval_duration: data.prompt_eval_duration,
eval_count: data.eval_count,
eval_duration: data.eval_duration
};
messages = messages;
if ($settings.notificationEnabled && !document.hasFocus()) {
const notification = new Notification(
selectedModelfile
? `${
selectedModelfile.title.charAt(0).toUpperCase() +
selectedModelfile.title.slice(1)
}`
: `${model}`,
{
body: responseMessage.content,
icon: selectedModelfile?.imageUrl ?? `${WEBUI_BASE_URL}/static/favicon.png`
}
);
}
if ($settings.responseAutoCopy) {
copyToClipboard(responseMessage.content);
}
if ($settings.responseAutoPlayback) {
await tick();
document.getElementById(`speak-button-${responseMessage.id}`)?.click();
}
}
}
......
src/lib/components/chat/ModelSelector/Selector.svelte
View file @ d9a3e4db
......@@ -8,7 +8,7 @@
import Check from '$lib/components/icons/Check.svelte';
import Search from '$lib/components/icons/Search.svelte';
import { cancelOllamaRequest, deleteModel, getOllamaVersion, pullModel } from '$lib/apis/ollama';
import { deleteModel, getOllamaVersion, pullModel } from '$lib/apis/ollama';
import { user, MODEL_DOWNLOAD_POOL, models, mobile } from '$lib/stores';
import { toast } from 'svelte-sonner';
......@@ -72,10 +72,12 @@
return;
}
const res = await pullModel(localStorage.token, sanitizedModelTag, '0').catch((error) => {
toast.error(error);
return null;
});
const [res, controller] = await pullModel(localStorage.token, sanitizedModelTag, '0').catch(
(error) => {
toast.error(error);
return null;
}
);
if (res) {
const reader = res.body
......@@ -83,6 +85,16 @@
.pipeThrough(splitStream('\n'))
.getReader();
MODEL_DOWNLOAD_POOL.set({
...$MODEL_DOWNLOAD_POOL,
[sanitizedModelTag]: {
...$MODEL_DOWNLOAD_POOL[sanitizedModelTag],
abortController: controller,
reader,
done: false
}
});
while (true) {
try {
const { value, done } = await reader.read();
......@@ -101,19 +113,6 @@
throw data.detail;
}
if (data.id) {
MODEL_DOWNLOAD_POOL.set({
...$MODEL_DOWNLOAD_POOL,
[sanitizedModelTag]: {
...$MODEL_DOWNLOAD_POOL[sanitizedModelTag],
requestId: data.id,
reader,
done: false
}
});
console.log(data);
}
if (data.status) {
if (data.digest) {
let downloadProgress = 0;
......@@ -181,11 +180,12 @@
});
const cancelModelPullHandler = async (model: string) => {
const { reader, requestId } = $MODEL_DOWNLOAD_POOL[model];
const { reader, abortController } = $MODEL_DOWNLOAD_POOL[model];
if (abortController) {
abortController.abort();
}
if (reader) {
await reader.cancel();
await cancelOllamaRequest(localStorage.token, requestId);
delete $MODEL_DOWNLOAD_POOL[model];
MODEL_DOWNLOAD_POOL.set({
...$MODEL_DOWNLOAD_POOL
......
src/lib/components/chat/Settings/Models.svelte
View file @ d9a3e4db
......@@ -8,7 +8,6 @@
getOllamaUrls,
getOllamaVersion,
pullModel,
cancelOllamaRequest,
uploadModel,
getOllamaConfig
} from '$lib/apis/ollama';
......@@ -70,12 +69,14 @@
console.log(model);
updateModelId = model.id;
const res = await pullModel(localStorage.token, model.id, selectedOllamaUrlIdx).catch(
(error) => {
toast.error(error);
return null;
}
);
const [res, controller] = await pullModel(
localStorage.token,
model.id,
selectedOllamaUrlIdx
).catch((error) => {
toast.error(error);
return null;
});
if (res) {
const reader = res.body
......@@ -144,10 +145,12 @@
return;
}
const res = await pullModel(localStorage.token, sanitizedModelTag, '0').catch((error) => {
toast.error(error);
return null;
});
const [res, controller] = await pullModel(localStorage.token, sanitizedModelTag, '0').catch(
(error) => {
toast.error(error);
return null;
}
);
if (res) {
const reader = res.body
......@@ -155,6 +158,16 @@
.pipeThrough(splitStream('\n'))
.getReader();
MODEL_DOWNLOAD_POOL.set({
...$MODEL_DOWNLOAD_POOL,
[sanitizedModelTag]: {
...$MODEL_DOWNLOAD_POOL[sanitizedModelTag],
abortController: controller,
reader,
done: false
}
});
while (true) {
try {
const { value, done } = await reader.read();
......@@ -173,19 +186,6 @@
throw data.detail;
}
if (data.id) {
MODEL_DOWNLOAD_POOL.set({
...$MODEL_DOWNLOAD_POOL,
[sanitizedModelTag]: {
...$MODEL_DOWNLOAD_POOL[sanitizedModelTag],
requestId: data.id,
reader,
done: false
}
});
console.log(data);
}
if (data.status) {
if (data.digest) {
let downloadProgress = 0;
......@@ -419,11 +419,12 @@
};
const cancelModelPullHandler = async (model: string) => {
const { reader, requestId } = $MODEL_DOWNLOAD_POOL[model];
const { reader, abortController } = $MODEL_DOWNLOAD_POOL[model];
if (abortController) {
abortController.abort();
}
if (reader) {
await reader.cancel();
await cancelOllamaRequest(localStorage.token, requestId);
delete $MODEL_DOWNLOAD_POOL[model];
MODEL_DOWNLOAD_POOL.set({
...$MODEL_DOWNLOAD_POOL
......
src/lib/components/workspace/Playground.svelte
View file @ d9a3e4db
......@@ -8,7 +8,7 @@
import { OLLAMA_API_BASE_URL, OPENAI_API_BASE_URL, WEBUI_API_BASE_URL } from '$lib/constants';
import { WEBUI_NAME, config, user, models, settings } from '$lib/stores';
import { cancelOllamaRequest, generateChatCompletion } from '$lib/apis/ollama';
import { generateChatCompletion } from '$lib/apis/ollama';
import { generateOpenAIChatCompletion } from '$lib/apis/openai';
import { splitStream } from '$lib/utils';
......@@ -24,7 +24,6 @@
let selectedModelId = '';
let loading = false;
let currentRequestId = null;
let stopResponseFlag = false;
let messagesContainerElement: HTMLDivElement;
......@@ -46,14 +45,6 @@
}
};
// const cancelHandler = async () => {
// if (currentRequestId) {
// const res = await cancelOllamaRequest(localStorage.token, currentRequestId);
// currentRequestId = null;
// loading = false;
// }
// };
const stopResponse = () => {
stopResponseFlag = true;
console.log('stopResponse');
......@@ -171,8 +162,6 @@
if (stopResponseFlag) {
controller.abort('User: Stop Response');
}
currentRequestId = null;
break;
}
......@@ -229,7 +218,6 @@
loading = false;
stopResponseFlag = false;
currentRequestId = null;
}
};
......
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