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https://github.com/outbackdingo/patroni.git
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a70b46ef13
Ensures that system gets rebooted before TTL runs out.
Initial version. Open questions:
Do we want to disable watchdog while we are not master?
62 lines
2.3 KiB
Python
62 lines
2.3 KiB
Python
import psycopg2 as pg
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from behave import step, then
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from time import sleep, time
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@step('I start {name:w}')
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def start_patroni(context, name):
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return context.pctl.start(name)
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@step('I shut down {name:w}')
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def stop_patroni(context, name):
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return context.pctl.stop(name, timeout=60)
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@step('I kill {name:w}')
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def kill_patroni(context, name):
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return context.pctl.stop(name, kill=True)
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@step('I kill postmaster on {name:w}')
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def stop_postgres(context, name):
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return context.pctl.stop(name, postgres=True)
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@step('I add the table {table_name:w} to {pg_name:w}')
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def add_table(context, table_name, pg_name):
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# parse the configuration file and get the port
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try:
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context.pctl.query(pg_name, "CREATE TABLE {0}()".format(table_name))
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except pg.Error as e:
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assert False, "Error creating table {0} on {1}: {2}".format(table_name, pg_name, e)
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@then('Table {table_name:w} is present on {pg_name:w} after {max_replication_delay:d} seconds')
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def table_is_present_on(context, table_name, pg_name, max_replication_delay):
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max_replication_delay *= context.timeout_multiplier
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for _ in range(int(max_replication_delay)):
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if context.pctl.query(pg_name, "SELECT 1 FROM {0}".format(table_name), fail_ok=True) is not None:
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break
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sleep(1)
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else:
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assert False,\
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"Table {0} is not present on {1} after {2} seconds".format(table_name, pg_name, max_replication_delay)
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@then('{pg_name:w} role is the {pg_role:w} after {max_promotion_timeout:d} seconds')
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def check_role(context, pg_name, pg_role, max_promotion_timeout):
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max_promotion_timeout *= context.timeout_multiplier
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assert context.pctl.check_role_has_changed_to(pg_name, pg_role, timeout=int(max_promotion_timeout)),\
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"{0} role didn't change to {1} after {2} seconds".format(pg_name, pg_role, max_promotion_timeout)
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@step('replication works from {master:w} to {replica:w} after {time_limit:d} seconds')
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@then('replication works from {master:w} to {replica:w} after {time_limit:d} seconds')
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def replication_works(context, master, replica, time_limit):
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context.execute_steps(u"""
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When I add the table test_{0} to {1}
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Then table test_{0} is present on {2} after {3} seconds
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""".format(int(time()), master, replica, time_limit))
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