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SQL Server error code 4014 on Linux

Tim Coleman 0 Reputation points
2025-04-29T16:04:17.6766667+00:00

Hi there!

I'm getting an error 4014, severity 20, state 10 error in my SQL Server error log. It seems to happen at random intervals.

This is for a SQL Server 2022 instance running on Red Hat Enterprise Linux 9.5. The client is making a connection using the SQL Server ODBC driver version 18.5.1.1.

I have read that this indicates a network error, but it's a loopback connection, so I don't know how that could be.

It previously worked with RHEL 9.4.

SQL Server Database Engine
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  1. Azar 28,000 Reputation points MVP
    2025-04-29T20:06:14.4533333+00:00

    Hi there Tim Coleman

    Thanks for using QandA platform

    This often tied to unexpected disconnections between the client and SQL Server. Even if you're using a loopback interface

    since you're using ODBC 18.5.1.1, try reverting to an earlier version to test.

    RHEL 9.5 might have introduced networking or socket handling changes not present in 9.4.

    check for issues like file descriptor or memory pressure that may affect the SQL Server process.

    If this helps kindly accept the answer thanks much.

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