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Type:
Improvement
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Resolution: Fixed
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Priority:
Major - P3
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Affects Version/s: None
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Component/s: None
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Labels:None
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Fully Compatible
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v6.0, v5.0, v4.4
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Service Arch 2022-12-26, Service Arch 2022-09-05, Service Arch 2022-09-19, Service Arch 2022-10-03, Service Arch 2022-10-17, Service Arch 2022-10-31, Service Arch 2022-11-14, Service Arch 2022-11-28, Service Arch 2022-12-12, Service Arch 2023-01-09, Service Arch 2023-01-23, Service Arch 2023-02-06, Service Arch 2023-02-20, Service Arch 2023-03-06, Service Arch 2023-03-20, Service Arch 2023-04-03
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(copied to CRM)
It seems that SERVER-57466 broke the TCP Keepalive parameter settings on Linux.
I'm looking at this optval variable.
https://github.com/10gen/mongo/pull/695/files#diff-19e9e1bf9007ae5e281e4d8f2c2b4704547ad7917c3557867bf91fdc45e18601L155
Previously it was set to 1 and then overwritten by getsockopt.
The value retrieved by getsockopt is compared against a maxval to determine if clipping is necessary, and if so, a setsockopt overwrites the value attached to the socket.
But in SERVER-57466, the rawOptVal read by getsockopt is discarded.
The optVal variable is never rewritten at all, and the clipping never occurs because 1 second is never greater than the maxVal variable, which is a constant that's either 300 or 1 second depending on the call site.
So the setsockopt to configure TCP_KEEPIDLE and TCP_KEEPINTVL never happen.
- duplicates
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- Backlog
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- is caused by
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SERVER-57466 Swallow connection reset-related errors received during ASIO session establishment
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- Closed
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