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https://github.com/outbackdingo/patroni.git
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James ColemanandGitHub
d7f579ee61
There are sometimes good reasons to manage replication slots externally to Patroni. For example, a consumer may wish to manage its own slots (so that it can more easily track when a failover has a occurred and whether it is ahead of or behind the WAL position on the new primary). Additionally tooling like pglogical actually replicates slots to all replicas so that the current position can be maintained on failover targets (this also aids consumers by supplying primitives so that they can verify data hasn't been lost or a split brain occurred relative to the physical cluster). To support these use cases this new feature allows configuring Patroni to entirely ignore sets of slots specified by any subset of name, database, slot type, and plugin.
55 lines
1.9 KiB
Python
55 lines
1.9 KiB
Python
import json
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import time
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from behave import step, then
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@step('I configure and start {name:w} with a tag {tag_name:w} {tag_value:w}')
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def start_patroni_with_a_name_value_tag(context, name, tag_name, tag_value):
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return context.pctl.start(name, custom_config={'tags': {tag_name: tag_value}})
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@then('There is a {label} with "{content}" in {name:w} data directory')
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def check_label(context, label, content, name):
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label = context.pctl.read_label(name, label)
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if label is None:
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label = ""
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label = label.replace('\n', '\\n')
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assert content in label, "\"{0}\" doesn't contain {1}".format(label, content)
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@step('I create label with "{content:w}" in {name:w} data directory')
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def write_label(context, content, name):
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context.pctl.write_label(name, content)
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@step('"{name}" key in DCS has {key:w}={value} after {time_limit:d} seconds')
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def check_member(context, name, key, value, time_limit):
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time_limit *= context.timeout_multiplier
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max_time = time.time() + int(time_limit)
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dcs_value = None
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while time.time() < max_time:
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try:
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response = json.loads(context.dcs_ctl.query(name))
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dcs_value = response.get(key)
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if dcs_value == value:
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return
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except Exception:
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pass
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time.sleep(1)
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assert False, "{0} does not have {1}={2} (found {3}) in dcs after {4} seconds".format(name, key, value, dcs_value, time_limit)
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@step('there is a non empty {key:w} key in DCS after {time_limit:d} seconds')
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def check_initialize(context, key, time_limit):
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time_limit *= context.timeout_multiplier
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max_time = time.time() + int(time_limit)
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while time.time() < max_time:
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try:
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if context.dcs_ctl.query(key):
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return
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except Exception:
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pass
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time.sleep(1)
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assert False, "There is no {0} in dcs after {1} seconds".format(key, time_limit)
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