Negative pending connections at connection broker

Björn Fischer 1 Reputation point
2020-11-05T15:20:33.127+00:00

We are monitoring our RDS connection broker with performance counters. The counters are documented in 1. In particular we observe the pending connections, which, as far as I understand, is a gauge returning the currently pending connections. We had some logon problems and the pending connections increased during that time. A restart of the connection broker partially solved the logon problem. However, after the restart the performance counter reported negative pending connections.

37707-image.png

Is there a meaning behind negative pending connections or is the performance counter faulty?

1 https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2012-r2-and-2012/mt729067(v%3Dws.11)

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  1. Eleven Yu (Shanghai Wicresoft Co,.Ltd.) 10,756 Reputation points Microsoft Vendor
    2020-11-06T02:44:18.093+00:00

    Hi,

    There is no meaning of the negative pending connections. This should be the performance counter error.

    Below article lists the possible status values for counters. Three of them indicate the "negative value error".
    https://learn.microsoft.com/en-us/windows/win32/perfctrs/checking-pdh-interface-return-values
    37788-image.png

    You can also refer to below post for suppressing errors from perfmon counters.
    http://commonlrissues.blogspot.com/2012/09/is-there-way-to-suppress-errors-from.html

    Hope the information helps.

    Thanks,
    Eleven

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