mirror of
https://github.com/chatmail/relay.git
synced 2026-09-19 05:40:08 +00:00
holger krekel
fa5afadaaa
The default values are geared towards minimal-requirements server. If you have a big server, you will need to set chatmail.ini parameters.
33 lines
1.1 KiB
Python
33 lines
1.1 KiB
Python
"""Detect whether the system is at its limits."""
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import logging
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import psutil
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MB = 1024 * 1024
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def read_value(getter):
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try:
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return getter()
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except Exception as e:
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logging.warning("ignoring unreadable system limit: %s", e)
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return None
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def has_sufficient_resources(config):
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"""Return False if load, memory or disk exceeds a configured limit."""
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load = read_value(lambda: psutil.getloadavg()[0])
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mem = read_value(lambda: psutil.virtual_memory().available // MB)
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disk = read_value(lambda: psutil.disk_usage(str(config.mailboxes_dir)).free // MB)
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if load is not None and load > config.max_load_1m:
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msg = f"load avg {load:.2f} > {config.max_load_1m:.2f}"
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elif mem is not None and mem < config.min_available_memory_mb:
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msg = f"available memory {mem}MB < {config.min_available_memory_mb}MB"
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elif disk is not None and disk < config.min_free_disk_space_mb:
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msg = f"free disk {disk}MB < {config.min_free_disk_space_mb}MB"
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else:
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return True
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logging.warning("registration rejected: %s", msg)
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return False
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