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feat: force listener to work on primary cluster #3462

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merged 1 commit into from
May 20, 2024
Merged

feat: force listener to work on primary cluster #3462

merged 1 commit into from
May 20, 2024

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steve-chavez
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@steve-chavez steve-chavez commented Apr 30, 2024 •
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Closes #3414 and closes #2781

@steve-chavez steve-chavez mentioned this pull request Apr 30, 2024
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steve-chavez commented May 2, 2024 •
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New problem with our way to modify the connection string, comma separated hosts:

"postgresql://host1:123,host2:456/somedb"

Are not valid URIs for parseURI. Ref #2985

While manually testing with this format:

"postgres:///postgres?host=/dir/0kN/socket_replica_24378,/dir/0kN/socket"

Adding target_session_attrs=read-write works fine for the LISTENer though.

@steve-chavez steve-chavez mentioned this pull request May 3, 2024
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steve-chavez commented May 19, 2024 •
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New problem on #3533, when the LISTEN fails it does so silently. That needs clearing to solve this reliably.

#3536 had to be fixed too.

@steve-chavez steve-chavez marked this pull request as ready for review May 20, 2024 04:11
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steve-chavez commented May 20, 2024
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test/io/test_replica.py
working_replica_env = {
**replicaenv["replica"],
"PGRST_DB_CHANNEL_ENABLED": "false", # LISTEN doesn't work on read replicas
}

with run(env=working_replica_env) as postgrest:
with run(env=replicaenv["replica"]) as postgrest:
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LISTEN now works and this test proves it

@steve-chavez steve-chavez merged commit 7e61c9d into PostgREST:main May 20, 2024
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Successfully merging this pull request may close these issues.

Event triggers don't work on read replicas LISTEN/NOTIFY doesn't work on read replicas
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