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0a0e55c3d0
The synchronous 'tar' crate has required us to use block_in_place and SyncIoBridge to work together with the async I/O in the client connection. Switch to 'tokio-tar' crate that uses async I/O natively. As part of this, move the CopyDataWriter implementation to postgres_backend_async.rs. Even though it's only used in one place currently, it's in principle generally applicable whenever you want to use COPY out. Unfortunately we cannot use the 'tokio-tar' as it is: the Builder implementation requires the writer to have 'static lifetime. So we have to use a modified version without that requirement. The 'static lifetime was required just for the Drop implementation that writes the end-of-archive sections if the Builder is dropped without calling `finish`. But we don't actually want that behavior anyway; in fact we had to jump through some hoops with the AbortableWrite hack to skip those. With the modified version of 'tokio-tar' without that Drop implementation, we don't need AbortableWrite either. Co-authored-by: Kirill Bulatov <kirill@neon.tech>
33 lines
930 B
Python
Executable File
33 lines
930 B
Python
Executable File
from contextlib import closing
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from fixtures.log_helper import log
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from fixtures.neon_fixtures import NeonEnv
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#
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# Test starting Postgres with custom options
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#
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def test_config(neon_simple_env: NeonEnv):
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env = neon_simple_env
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env.neon_cli.create_branch("test_config", "empty")
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# change config
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pg = env.postgres.create_start("test_config", config_lines=["log_min_messages=debug1"])
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log.info("postgres is running on test_config branch")
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with closing(pg.connect()) as conn:
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with conn.cursor() as cur:
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cur.execute(
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"""
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SELECT setting
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FROM pg_settings
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WHERE
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source != 'default'
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AND source != 'override'
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AND name = 'log_min_messages'
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"""
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)
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# check that config change was applied
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assert cur.fetchone() == ("debug1",)
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