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Enable timeout on reading from socket in safekeeper WAL service.

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TCP_KEEPALIVE is not enabled by default, so this prevents hanged up connections
in case of abrupt client termination. Add 'closed' flag to PostgresBackendReader
and pass it during handles join to prevent attempts to read from socket if we
errored out previously -- now with timeouts this is a common situation.

It looks like
2023-04-10T18:08:37.493448Z  INFO {cid=68}:WAL
receiver{ttid=59f91ad4e821ab374f9ccdf918da3a85/16438f99d61572c72f0c7b0ed772785d}:
terminated: timed out

Presumably fixes https://github.com/neondatabase/neon/issues/3971
This commit is contained in:
Arseny Sher
2023-04-10 22:13:53 +04:00
committed by Arseny Sher
parent 22c890b71c
commit 7ad5a5e847
5 changed files with 80 additions and 40 deletions
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Cargo.lock
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@@ -3367,6 +3367,7 @@ dependencies = [
"tempfile",
"thiserror",
"tokio",
"tokio-io-timeout",
"tokio-postgres",
"toml_edit",
"tracing",