zulip/scripts/nagios/check-rabbitmq-consumers

73 lines
2.0 KiB
Python
Executable File

#!/usr/bin/env python3
import argparse
import os
import subprocess
import sys
import time
from collections import defaultdict
from typing import Dict
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 get_config_file, get_tornado_ports
states = {
0: "OK",
1: "WARNING",
2: "CRITICAL",
3: "UNKNOWN",
}
if "USER" in os.environ and not os.environ["USER"] 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,
# These queues may not be present if settings.TORNADO_PROCESSES > 1
"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"
consumers[queue_name] += 1
now = int(time.time())
for queue_name in consumers.keys():
state_file_path = "/var/lib/nagios_state/check-rabbitmq-consumers-" + queue_name
state_file_tmp = state_file_path + "-tmp"
target_count = 1
if queue_name == "notify_tornado":
target_count = TORNADO_PROCESSES
if consumers[queue_name] < target_count:
status = 2
else:
status = 0
with open(state_file_tmp, "w") as f:
f.write(
f"{now}|{status}|{states[status]}|queue {queue_name} has {consumers[queue_name]} consumers, needs {target_count}\n"
)
os.rename(state_file_tmp, state_file_path)