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i1.37.6

i1.37.6: test(connection): add a fix for FIN_WAIT_2 leak bug with BLPOP (#7224)
@romange romange tagged this 28 Apr 04:47 
* test(connection): add reproduction for FIN_WAIT_2 leak with BLPOP

Closing a client socket while the connection's reader fiber is parked on
a blocking command (BLPOP) does not always wake the fiber to observe EOF.

Under sustained concurrent open+close churn, a fraction of FDs linger on
the server in CLOSE_WAIT (client in FIN_WAIT_2) until the command times
out or the client is CLIENT KILL'd, matching the reaper-driven leak
reported in production. valkey closes its half immediately
on FIN even mid-BLPOP.

The bug is fixed in helio by https://github.com/romange/helio/pull/580

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Signed-off-by: Roman Gershman <roman@dragonflydb.io>

* chore: small fixes

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Signed-off-by: Roman Gershman <roman@dragonflydb.io>
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Signed-off-by: Roman Gershman <roman@dragonflydb.io>
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