patroni.watchdog.linux module
- patroni.watchdog.linux.IOC(dir: int, _type: str, _nr: int, size: int) → int View on GitHub
- patroni.watchdog.linux.IOR(type: str, _nr: int, size: int) → int View on GitHub
- patroni.watchdog.linux.IOW(type: str, _nr: int, size: int) → int View on GitHub
- patroni.watchdog.linux.IOWR(type: str, _nr: int, size: int) → int View on GitHub
- class _patroni.watchdog.linux.LinuxWatchdogDevice(_device: str) View on GitHub
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Bases:
WatchdogBase+- DEFAULT_DEVICE_ = '/dev/watchdog'_
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+
- __init\\__(device: str) → None View on GitHub
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- abc_impl = <_abc._abc_data object>_
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+
- ioctl(_func: int, arg: Any) → None View on GitHub
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Runs the specified ioctl on the underlying fd.
Raises WatchdogError if the device is closed. Raises OSError or IOError (Python 2) when the ioctl fails. + - property _can_be_disabled: bool_
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Returns True when watchdog will be disabled by calling close(). Some watchdog devices will keep running no matter what once activated. May raise WatchdogError if called without calling open() first. +
- close() → None View on GitHub
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Gracefully close watchdog device. +
- describe() → str View on GitHub
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Human readable name for this device +
- classmethod _from_config(_config: Dict[ str, Any]) → LinuxWatchdogDevice View on GitHub
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- get_support() → WatchdogInfo View on GitHub
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- get_timeout() → int View on GitHub
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Returns the current keepalive timeout in effect. +
- has_set_timeout() → bool View on GitHub
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Returns True if setting a timeout is supported. +
- property _is_healthy: bool_
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Returns False when calling open() is known to fail. +
- property _is_running: bool_
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Returns True when watchdog is activated and capable of performing it’s task. +
- keepalive() → None View on GitHub
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Resets the watchdog timer.
Watchdog must be open when keepalive is called. + - open() → None View on GitHub
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Open watchdog device.
When watchdog is opened keepalive must be called. Returns nothing on success or raises WatchdogError if the device could not be opened. + - set_timeout(timeout: int) → None View on GitHub
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Set the watchdog timer timeout. +
- Parameters
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timeout – watchdog timeout in seconds
- class _patroni.watchdog.linux.TestingWatchdogDevice(_device: str) View on GitHub
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Bases:
LinuxWatchdogDevice+ Converts timeout ioctls to regular writes that can be intercepted from a named pipe. +- abc_impl = <_abc._abc_data object>_
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- get_support() → WatchdogInfo View on GitHub
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- get_timeout() → int View on GitHub
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Returns the current keepalive timeout in effect. +
- set_timeout(timeout: int) → None View on GitHub
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Set the watchdog timer timeout. +
- Parameters
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timeout – watchdog timeout in seconds +
- timeout_ = 60_
- class _patroni.watchdog.linux.WatchdogInfo(_options: int, version: int, identity: str) View on GitHub
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Bases:
NamedTuple+ Watchdog descriptor from the kernel +- _asdict() View on GitHub
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Return a new dict which maps field names to their values. +
- field_defaults = \{}_
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- fields = ('options', 'version', 'identity')_
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- classmethod \\__make(_iterable) View on GitHub
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Make a new WatchdogInfo object from a sequence or iterable +
- replace(**kwds_) View on GitHub
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Return a new WatchdogInfo object replacing specified fields with new values +
- identity_: str_
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Alias for field number 2 +
- options_: int_
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Alias for field number 0 +
- version_: int_
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Alias for field number 1
- _class _patroni.watchdog.linux.watchdog_info View on GitHub
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Bases:
Structure+
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