mirror of
https://github.com/zulip/zulip.git
synced 2025-10-31 20:13:46 +00:00
bef864251b
When run from cron, reload-server (and thus reload-clients) picks up the `HTTP_proxy` environment variable, which redirects HTTP requests through Smokescreen -- which prevents localhost requests. This results in clients never getting sent reload events. Explicitly unset proxies when talking to localhost in reload-clients.
106 lines
3.5 KiB
Python
Executable File
106 lines
3.5 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
import argparse
|
|
import configparser
|
|
import logging
|
|
import os
|
|
import sys
|
|
import time
|
|
|
|
sys.path.append(os.path.join(os.path.dirname(__file__), ".."))
|
|
from scripts.lib.setup_path import setup_path
|
|
|
|
setup_path()
|
|
|
|
import requests
|
|
from requests.adapters import HTTPAdapter
|
|
from urllib3.util import Retry
|
|
|
|
from scripts.lib.zulip_tools import get_config, get_config_file, get_tornado_ports
|
|
|
|
config_file = get_config_file()
|
|
reload_rate = int(
|
|
get_config(
|
|
config_file,
|
|
"application_server",
|
|
"client_reload_rate",
|
|
"50",
|
|
)
|
|
)
|
|
|
|
parser = argparse.ArgumentParser()
|
|
parser.add_argument(
|
|
"--rate", type=int, help="Number of clients to reload per second", default=reload_rate
|
|
)
|
|
parser.add_argument("--background", action="store_true", help="Daemonize the process")
|
|
|
|
args = parser.parse_args()
|
|
reload_rate = args.rate
|
|
|
|
secret_config_file = configparser.RawConfigParser()
|
|
secret_config_file.read("/etc/zulip/zulip-secrets.conf")
|
|
shared_secret = get_config(secret_config_file, "secrets", "shared_secret")
|
|
assert shared_secret
|
|
|
|
# Perform relatively slow retries (2s, 4s, 8s) with backoff, including
|
|
# on POST requests. Failure to send this request successfully means
|
|
# that clients may fail to reload, so we want to be somewhat resilient
|
|
# to failures. Since we are on localhost, we do not expect network
|
|
# failures, only Tornado restarts, to cause failures here.
|
|
retry = Retry(total=3, backoff_factor=1, allowed_methods=Retry.DEFAULT_ALLOWED_METHODS | {"POST"})
|
|
c = requests.Session()
|
|
c.mount("http://", HTTPAdapter(max_retries=retry))
|
|
|
|
log_filename = None
|
|
if args.background:
|
|
# Double-fork to daemonize
|
|
pid = os.fork()
|
|
if pid > 0:
|
|
sys.exit(0)
|
|
os.setsid()
|
|
pid = os.fork()
|
|
if pid > 0:
|
|
sys.exit(0)
|
|
log_filename = "/var/log/zulip/reload-clients.log"
|
|
|
|
logging.Formatter.converter = time.gmtime
|
|
logging.basicConfig(
|
|
format="%(asctime)s reload-clients: %(message)s",
|
|
level=logging.INFO,
|
|
filename=log_filename,
|
|
)
|
|
|
|
first = True
|
|
server_total = 0
|
|
for port in get_tornado_ports(config_file):
|
|
logging.info("Starting to send client reload events to Tornado port %d", port)
|
|
try:
|
|
shard_total = 0
|
|
complete = False
|
|
# Rather than make a sustained one request per second, we batch
|
|
# into 5-second chunks of 5 times the client_reload_rate
|
|
SECONDS_PER_BATCH = 5
|
|
while not complete:
|
|
if not first:
|
|
time.sleep(SECONDS_PER_BATCH)
|
|
first = False
|
|
|
|
logging.info("Sending reload events to %d clients", reload_rate * SECONDS_PER_BATCH)
|
|
resp = c.post(
|
|
f"http://127.0.0.1:{port}/api/internal/web_reload_clients",
|
|
data={"client_count": reload_rate * SECONDS_PER_BATCH, "secret": shared_secret},
|
|
timeout=5,
|
|
proxies={"http": ""}, # Make sure we don't go through Smokescreen
|
|
)
|
|
resp.raise_for_status()
|
|
shard_total += resp.json()["sent_events"]
|
|
complete = resp.json()["complete"]
|
|
logging.info("Sent %d reload events to Tornado port %d", shard_total, port)
|
|
server_total += shard_total
|
|
except requests.exceptions.HTTPError:
|
|
# Failures in one shard likely won't affect other shards --
|
|
# give up on this shard, and try the next one,
|
|
logging.exception("Failed to send web_reload_clients request to Tornado port %d", port)
|
|
|
|
if len(get_tornado_ports(config_file)) > 1:
|
|
logging.info("Sent total of %d reload events, across all Tornado instances", server_total)
|