[Freeipa-devel] SASL whoami

[Richard Megginson]

Rob Crittenden wrote:
> The connection pool has a fairly big problem with it. When a 
> connection goes away, it doesn't currently see that and returns a 
> failure rather than reconnecting. These connections can go away if FDS 
> restarts, for example. Or the connection times out or we're hit by 
> gamma rays, who knows.
>
> Trying to figure out where this failure is occurring and retrying the 
> operation will be fairly difficult (for every LDAP operation basically).
>
> Instead what I've tried to do is run a quick operation on the 
> connection when I pull it out of the pool. If it is bad I can easily 
> make a new one.
>
> I wanted an LDAP operation that wasn't going to stress the server at 
> all. There is an extended operation whoami so you can find out who is 
> authenticated on this connection.
>
> Using this I can see whether the connection is alive or not and it 
> actually works fairly well.
>
> The problem is that FDS doesn't implement it, so an error is logged. 
> It isn't a big deal in my mind and in fact the operation is probably 
> quite swift ("Do I have this extop? Nope, return.").
>
> So, we have several options:
>
> 1. Go with my current uncommitted patch and use an unimplemented extop 
> to test the connection.
> 2. Go with the current uncommitted patch AND write a quickie plugin 
> that does whoami.
> 3. Try something else altogether, such as catching ldap.SERVER_DOWN 
> everywhere and trying again.
Instead of the extop, could just query the root DSE?
>
> rob
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>
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