Re: [Openslp-users] Registrations and server restarts

[John C. <joh...@gm...>]

Gavin,

Can you send the log indicating shutdown and restart?

John
On Nov 19, 2013 11:15 PM, "Gavin Lambert" <ga...@co...> wrote:

> Hi all,
>
> I have a fairly simple test network setup at the moment with one Windows
> machine and four Linux machines running OpenSLP (all with the same code,
> which is one of the just-immediately-prior-to-release 2.0 betas); and there
> are no DAs.  The four Linux machines all run the same app which is supposed
> to have a permanent SLP registration.
>
> Today I noticed while running an unrelated soak test (so everything had
> been
> running for several hours, in some cases days) that two of the four
> machines
> were no longer responding with the service info for that app.  The app is
> still running, and slpd is still running.  However logs show that (at
> different times) the slpd service on both of the affected machines shut
> down
> and was restarted one second later, for no readily apparent reason.  (In
> particular, the slpd.log appears to show a normal shutdown / startup
> banner,
> but there's no other apparent cause for the restart.)
>
> The app normally makes a single call to SLPReg on startup with
> SLP_LIFETIME_MAXIMUM.  On rare occasions it'll call SLPReg again to change
> one or more of its attributes.  Only when the app exits does it SLPDereg
> and
> SLPClose.  No errors were returned from these APIs.
>
> So, two points puzzle me:
>
> 1. why did slpd restart?
> 2. why, following the restart, didn't it reload the registration made
> previously?
>
> (For #2, I'm assuming the app shouldn't have to manually refresh the
> registration since AFAIK it has no way to tell whether slpd has restarted
> or
> not.)
>
> If the assumption in #2 isn't valid, is there something the app should be
> doing to keep this registration alive?  (Preferably without spamming SLPReg
> or making it find itself.)
>
>
>
>
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