Re: [Xen-devel] monitoring all xenstore 'traffic'

[Dietmar Hahn <dietmar.hahn@xxxxxxxxxxxxxxxxxxx>]

Am Freitag, 7. November 2008 schrieb James Harper:
> Is there a way that I can monitor all xenstore activity?
>
> The sort of thing I am after is output like:
>
> D2045: /local/domain/2045/device/vbd/state set to "4"
> D0: /local/domain/2045/device/vbd/state watch fired
> D0: /local/domain/2045/device/vbd/state read value "4"

You must set
export XENSTORED_TRACE=1
before starting xend. You can search for XENSTORED_TRACE in /usr/bin/xend.
Then a trace file /var/log/xen/xenstored-trace.log is written.
You will see such lines:
IN  0x516a70 20081010 08:20:33 GET_DOMAIN_PATH (1 )
OUT 0x516a70 20081010 08:20:33 GET_DOMAIN_PATH (/local/domain/1 )
IN  0x5373e0 20081010 08:20:33 READ (/local/domain/1/serial/0/ring-ref )
OUT 0x5373e0 20081010 08:20:33 ERROR (ENOENT )

Dietmar.

>
> etc
>
> OpenSolaris Dom0 doesn't appear to want to talk to the Windows GPLPV
> drivers and I suspect that I'm doing something wrong in the xenbus
> arena... monitoring exactly what I do vs what a Linux PV DomU does would
> be educational!
>
> Thanks
>
> James
>
>
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel



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