zulip/scripts/nagios/check-rabbitmq-consumers

73 lines
2.1 KiB
Python
Executable File

#!/usr/bin/env python3
import argparse
import os
import re
import subprocess
import sys
import time
from collections import defaultdict
ZULIP_PATH = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
sys.path.append(ZULIP_PATH)
from scripts.lib.check_rabbitmq_queue import normal_queues
from scripts.lib.zulip_tools import (
atomic_nagios_write,
get_config,
get_config_file,
get_tornado_ports,
)
if "USER" in os.environ and os.environ["USER"] not in ["root", "rabbitmq"]:
print("This script must be run as the root or rabbitmq user")
parser = argparse.ArgumentParser()
parser.parse_args()
config_file = get_config_file()
TORNADO_PROCESSES = len(get_tornado_ports(config_file))
output = subprocess.check_output(["/usr/sbin/rabbitmqctl", "list_consumers"], text=True)
consumers: dict[str, int] = defaultdict(int)
queues = {
*normal_queues,
# All tornado queues get grouped into this, even if sharded
"notify_tornado",
}
for queue_name in queues:
queue_name = queue_name.strip()
consumers[queue_name] = 0
for line in output.split("\n"):
parts = line.split("\t")
if len(parts) >= 2:
queue_name = parts[0]
if queue_name.startswith("notify_tornado_"):
queue_name = "notify_tornado"
# Collapse sharded queues into a single queue for this check.
queue_name = re.sub(r"_shard(\d+)", "", queue_name)
consumers[queue_name] += 1
now = int(time.time())
for queue_name in consumers:
target_count = 1
if queue_name == "notify_tornado":
target_count = TORNADO_PROCESSES
elif queue_name == "missedmessage_mobile_notifications":
target_count = int(
get_config(config_file, "application_server", "mobile_notification_shards", "1")
)
elif queue_name == "thumbnail":
target_count = int(get_config(config_file, "application_server", "thumbnail_workers", "1"))
atomic_nagios_write(
"check-rabbitmq-consumers-" + queue_name,
"critical" if consumers[queue_name] < target_count else "ok",
f"queue {queue_name} has {consumers[queue_name]} consumers, needs {target_count}",
)