Monitoring backend status

Poul-Henning Kamp phk at
Wed Dec 9 11:56:24 CET 2009

In message <4B1F7FED.4020501 at>, Mark Plomer writes:
>is it possible to retrieve some more details about the current backend 
>status via the telnet interface?
>A list of all backends with current status (up/down) would be very 
>helpful for monitoring.
>For the beginning, it would be enough to have the count of backends and 
>the count of up-/down- backends
>in the "stats" output.

There is an undocumented "" command you can try.

Ideas for a final version of this are most welcom.

Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.

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