Re: [Vserver] major problem i have no clue where to look

On Tuesday 22 November 2005 07:32 pm, Chuck wrote:

one more thing..

we are using

linux-2.6.13.3-vs2.1.0-rc4 on a 4-way smp system.

and i just double checked the kernel config and pre-emption is off and both
timers are set at 250hz

>
> I am not even positive this is due/related to vserver.
>
> I have one guest which is a very busy radius server using a mysql database.
>
> The previous incarnation had no trouble at all on its own machine.
>
> Now, we are missing stop packets quite a bit which is causing radius
> accounting to go totally haywire.
>
> I have the added complication that this is a different radius software than
we
> previously used, and it is not possible to revert back to try the old one.
> we previously used IC-Radius and are currently using Free-Radius.. both use
> mysql.
>
> I guess my questions would be process of elimination...
>
> 1. is there anything within the vserver system that could be considered a
> 'heartbeat' where a particular guest would be 'off' for a miniscule time
> where it could possibly miss an incoming packet?
>
> 2. is there anything similar within iproute2 framework?
>
> 3. i remember reading somewhere and now cannot find it that there is a way
to
> increase the priority of a particular guest. i was wondering if i did that
for
> this one very slightly if it may ease its pain?
>
> 4. when inside a guest, does mysql behave slightly slower than it normally
> does? if so is there a cure? unfortunately this particular system requires
> lightning fast mysql responses.
>
> 5. anyone have such an experience and a cure/workaround?
>
>
> --
>
> Chuck
>
>
>
>
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>

-- 
Chuck
"...and the hordes of M$*ft users descended upon me in their anger,
and asked 'Why do you not get the viruses or the BlueScreensOfDeath
or insecure system troubles and slowness or pay through the nose 
for an OS as *we* do?!!', and I answered...'I use Linux'. "
The Book of John, chapter 1, page 1, and end of book
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