我在我的应用程序中添加slackclient以获取定期通知。
这个应用程序在AWS Linux和docker容器中执行（来自python:3.6.6-stretch）。
当我试图执行超过1000个循环时，这个过程失败了
在1000个循环之后，我得到了以下错误。
我已经检查了stackoverflow上的其他案例，但它对我不起作用。希望我能从你的回答中有所了解。我个人想知道为什么会这样，解决核心问题，而不是绕道而行。
错误
Traceback (most recent call last):
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/urllib3/util/ssl_.py", line 321, in ssl_wrap_socket
OSError: [Errno 24] Too many open files
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/urllib3/connectionpool.py", line 600, in urlopen
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/urllib3/connectionpool.py", line 343, in _make_request
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/urllib3/connectionpool.py", line 839, in _validate_conn
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/urllib3/connection.py", line 344, in connect
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/urllib3/util/ssl_.py", line 323, in ssl_wrap_socket
urllib3.exceptions.SSLError: [Errno 24] Too many open files
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/requests/adapters.py", line 449, in send
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/urllib3/connectionpool.py", line 638, in urlopen
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/urllib3/util/retry.py", line 398, in increment
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='slack.com', port=443): Max retries exceeded with url: /api/chat.update (Caused by SSLError(OSError(24, 'Too many open files'),))
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/home/scraping/notify.py", line 50, in update
File "/home/scraping/notify.py", line 70, in _api_call
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/slackclient/client.py", line 184, in api_call
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/slackclient/server.py", line 349, in api_call
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/slackclient/slackrequest.py", line 84, in do
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/slackclient/slackrequest.py", line 116, in post_http_request
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/requests/api.py", line 116, in post
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/requests/api.py", line 60, in request
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/requests/sessions.py", line 533, in request
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/requests/sessions.py", line 646, in send
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/requests/adapters.py", line 514, in send
requests.exceptions.SSLError: HTTPSConnectionPool(host='slack.com', port=443): Max retries exceeded with url: /api/chat.update (Caused by SSLError(OSError(24, 'Too many open files'),))
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/urllib3/connection.py", line 159, in _new_conn
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/urllib3/util/connection.py", line 57, in create_connection
File "/usr/local/lib/python3.6/socket.py", line 745, in getaddrinfo
OSError: [Errno 24] Too many open files
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/urllib3/connectionpool.py", line 600, in urlopen
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/urllib3/connectionpool.py", line 343, in _make_request
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/urllib3/connectionpool.py", line 839, in _validate_conn
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/urllib3/connection.py", line 301, in connect
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/urllib3/connection.py", line 168, in _new_conn
urllib3.exceptions.NewConnectionError: <urllib3.connection.VerifiedHTTPSConnection object at 0x7ff2d9158048>: Failed to establish a new connection: [Errno 24] Too many open files
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/requests/adapters.py", line 449, in send
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/urllib3/connectionpool.py", line 638, in urlopen
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/urllib3/util/retry.py", line 398, in increment
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='slack.com', port=443): Max retries exceeded with url: /api/chat.postMessage (Caused by NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0x7ff2d9158048>: Failed to establish a new connection: [Errno 24] Too many open files',))
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "main.py", line 33, in <module>
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/fire/core.py", line 127, in Fire
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/fire/core.py", line 366, in _Fire
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/fire/core.py", line 542, in _CallCallable
File "main.py", line 29, in fasten
File "/home/scraping/tasks/apps_info.py", line 199, in fasten
File "/home/scraping/pipe.py", line 144, in _notify
File "/home/scraping/notify.py", line 53, in update
File "/home/scraping/notify.py", line 46, in resend
File "/home/scraping/notify.py", line 70, in _api_call
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/slackclient/client.py", line 184, in api_call
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/slackclient/server.py", line 349, in api_call
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/slackclient/slackrequest.py", line 84, in do
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/slackclient/slackrequest.py", line 116, in post_http_request
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/requests/api.py", line 116, in post
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/requests/api.py", line 60, in request
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/requests/sessions.py", line 533, in request
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/requests/sessions.py", line 646, in send
File "/root/.local/share/virtualenvs/home-oTyxYuqD/lib/python3.6/site-packages/requests/adapters.py", line 516, in send
requests.exceptions.ConnectionError: HTTPSConnectionPool(host='slack.com', port=443): Max retries exceeded with url: /api/chat.postMessage (Caused by NewConnectionError('<urllib3.connection.VerifiedHTTPSConnection object at 0x7ff2d9158048>: Failed to establish a new connection: [Errno 24] Too many open files',))
SlackClient部分
import errno
import time
import urllib3
from datetime import datetime
from typing import List, Text
import requests
from slackclient import SlackClient
import config
from .utils import get_utc_date
class SlackHelper:
def __init__(self):
self._date_format = "%Y-%m-%d %H-%M-%S"
self._sc = SlackClient(config.SLACK_TOKEN)
self._channel = config.SLACK_CHANNEL
self._user_name = config.SLACK_USERNAME
self._icon_emoji = config.SLACK_MSG_EMOJI
self._ts = None
self._ch_encoded = None
self._created_at = get_utc_date(_format=self._date_format)
def send(self, *args, **kw):
return self._api_call(*args, **kw)
def resend(self, resend_cnt: int = 0, *args, **kw):
try:
self._ts = None
kw['method'] = 'chat.postMessage'
except (urllib3.exceptions.NewConnectionError,
urllib3.exceptions.MaxRetryError,
requests.exceptions.ConnectionError) as err:
if resend_cnt < 5:
time.sleep(60)
resend_cnt += 1
self.resend(resend_cnt, *args, **kw)
raise err
return self._api_call(*args, **kw)
def update(self, *args, **kw):
try:
return self._api_call(*args, **kw)
except (requests.exceptions.ConnectionError,
requests.exceptions.SSLError):
self.resend(*args, **kw)
except OSError as err:
if err.errno == errno.EMFILE:
return self.resend(*args, **kw)
raise err
def _api_call(self, title_prefix: Text, msg: Text,
alarm: Text = 'good', method: Text = 'chat.postMessage'):
attachments = self._get_attachments(title_prefix, msg, alarm)
response = self._sc.api_call(
method=method,
channel=(
self._ch_encoded if method == 'chat.update'
else self._channel),
attachments=[attachments],
username=self._user_name,
icon_emoji=self._icon_emoji,
ts=self._ts if method == 'chat.update' else None)
if self._check_retry(response):
delay = int(response["headers"]["Retry-After"])
time.sleep(delay)
return self._api_call(title_prefix, msg, alarm, method)
if response["ok"]:
if not self._ts:
self._ts = response.get('ts')
self._ch_encoded = response.get('channel')
return response.get('ok', True)
@staticmethod
def _check_retry(response):
if response["ok"] is False:
if response["headers"].get("Retry-After", False):
delay = int(response["headers"]["Retry-After"])
if delay < 60:
return True
return False
def _get_attachments(self, title_prefix, msg, alarm):
now = get_utc_date(_format=self._date_format)
return {
"title": f"Created : {self._created_at}\n{title_prefix} : {now}",
"text": msg,
"mrkdwn_in": ["text"],
"color": f"{alarm}"
}
环境
$ ulimit -a
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 15698
max locked memory (kbytes, -l) 64
max memory size (kbytes, -m) unlimited
open files (-n) 65535
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 15698
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
最佳答案
用--ulimit参数尝试run docker容器
docker run -d --ulimit nofile=98304:98304 ...
关于python - slackclient OSError:[Errno 24]打开的文件太多，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/53656247/