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Use safekeeper in test_branch_behind (#1068)

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to avoid a subtle race condition.

Without safekeeper, walreceiver reconnection can stuck,
because of IO deadlock between walsender auth and regular backend.
This commit is contained in:
anastasia
2022-01-11 17:16:25 +03:00
committed by lubennikovaav
parent 4b3b19f444
commit 7aba299dbd
1 changed files with 12 additions and 4 deletions
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16
test_runner/batch_others/test_branch_behind.py
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@@ -5,7 +5,7 @@ import psycopg2.extras
import pytest
from fixtures.log_helper import log
from fixtures.utils import print_gc_result
from fixtures.zenith_fixtures import ZenithEnv
from fixtures.zenith_fixtures import ZenithEnvBuilder
pytest_plugins = ("fixtures.zenith_fixtures")
@@ -13,10 +13,18 @@ pytest_plugins = ("fixtures.zenith_fixtures")
#
# Create a couple of branches off the main branch, at a historical point in time.
#
def test_branch_behind(zenith_simple_env: ZenithEnv):
env = zenith_simple_env
def test_branch_behind(zenith_env_builder: ZenithEnvBuilder):
# Use safekeeper in this test to avoid a subtle race condition.
# Without safekeeper, walreceiver reconnection can stuck
# because of IO deadlock.
#
# See https://github.com/zenithdb/zenith/issues/1068
zenith_env_builder.num_safekeepers = 1
env = zenith_env_builder.init()
# Branch at the point where only 100 rows were inserted
env.zenith_cli(["branch", "test_branch_behind", "empty"])
env.zenith_cli(["branch", "test_branch_behind", "main"])
pgmain = env.postgres.create_start('test_branch_behind')
log.info("postgres is running on 'test_branch_behind' branch")