patroni.postgresql.callback_executor module
- class _patroni.postgresql.callback_executor.CallbackAction(_value, names=None, *, module=None, qualname=None, type=None, start=1, boundary=None) View on GitHub
-
- NOOP_ = 'noop'_
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+
- ON_RELOAD_ = 'on_reload'_
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+
- ON_RESTART_ = 'on_restart'_
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+
- ON_ROLE_CHANGE_ = 'on_role_change'_
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+
- ON_START_ = 'on_start'_
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+
- ON_STOP_ = 'on_stop'_
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+
- generate_next_value(start, count, last_values) View on GitHub
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Generate the next value when not given.
name: the name of the member start: the initial start value or None count: the number of existing members last_values: the list of values assigned + - member_map\\_ = \{'NOOP': CallbackAction.NOOP, 'ON_RELOAD': CallbackAction.ON_RELOAD, 'ON_RESTART': CallbackAction.ON_RESTART, 'ON_ROLE_CHANGE': CallbackAction.ON_ROLE_CHANGE, 'ON_START': CallbackAction.ON_START, 'ON_STOP': CallbackAction.ON_STOP}_
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+
- member_names\\_ =
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+
- member_type_
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alias of
str+ - new_member(**kwargs)
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Create and return a new object. See help(type) for accurate signature. +
- unhashable_values\\_ = []
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+
- use_args\\_ = True_
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+
- value2member_map\\_ = \{'noop': CallbackAction.NOOP, 'on_reload': CallbackAction.ON_RELOAD, 'on_restart': CallbackAction.ON_RESTART, 'on_role_change': CallbackAction.ON_ROLE_CHANGE, 'on_start': CallbackAction.ON_START, 'on_stop': CallbackAction.ON_STOP}_
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+
- value_repr()
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Return repr(self).
- _class _patroni.postgresql.callback_executor.CallbackExecutor View on GitHub
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Bases:
CancellableExecutor,Thread+- __init\\__() View on GitHub
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This constructor should always be called with keyword arguments. Arguments are:
group should be None; reserved for future extension when a ThreadGroup class is implemented.
target is the callable object to be invoked by the run() method. Defaults to None, meaning nothing is called.
name is the thread name. By default, a unique name is constructed of the form “Thread-N” where N is a small decimal number.
args is a list or tuple of arguments for the target invocation. Defaults to ().
kwargs is a dictionary of keyword arguments for the target invocation. Defaults to \{}.
If a subclass overrides the constructor, it must make sure to invoke the base class constructor (Thread.__init\\__()) before doing anything else to the thread. + - call(cmd: List[ str]) → None View on GitHub
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Executes one callback at a time. + Already running command is killed (including child processes). If it couldn’t be killed we wait until it finishes. +
- Parameters
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cmd – command to be executed +
- run() → None View on GitHub
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Method representing the thread’s activity. + You may override this method in a subclass. The standard run() method invokes the callable object passed to the object’s constructor as the target argument, if any, with sequential and keyword arguments taken from the args and kwargs arguments, respectively.
- _class _patroni.postgresql.callback_executor.OnReloadExecutor View on GitHub
-
Bases:
CancellableSubprocess+- call_nowait(cmd: List[ str]) → None View on GitHub
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Run one on_reload callback at most. + To achieve it we always kill already running command including child processes.
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