--- Dave Shield <[EMAIL PROTECTED]> wrote:

> On Wed, 2005-05-25 at 13:29, Salsa wrote:
> 
> Dave>  Is the master agent receiving SNMP requests
> Dave> from other management tools?
> 
> Salsa>   I don't think so. My subagent only sends
> traps.
> Salsa> Nothing more. It is not responsible for any
> Salsa> requests,
> 
> Fair enough - I'm just trying to rule out as much as
> possible.
> 
> Salsa> I run snmpd, snmptrapd and subagent on the
> Salsa> same machine
> 
> It might be worth running the "snmptrapd" on a
> separate host, so that it's not trying to act as
> an AgentX subagent.
>   (There may be a simpler way to achieve this,
> I'm not sure).
> 
> That probably won't make any difference, but it's
> worth clearing this out of the way too.
> 
> By the same token, I'd be tempted to turn off the
> subagent "ping".  You *might* be able to do this
> using
>       agentxPingInterval 0
> 
> in the subagent's config file, but it's probably
> safer to edit the file 'agentx/subagent.c' and
> change '15' to '0' in subagent_pre_init().  Then
> recompile and reinstall both master and subagent.
> 
> Again, that's *probably* not relevant, but Just
> In Case...
> 
> 
> > > 2005-05-25 09:16:46 agentx/master: send
> response,
> > > stat 0 (req=0x5d120d88,trans=0x0,sess=0x7)      
>                                      
> > > 2005-05-25 09:16:46 agentx_build: packet built
> okay 
> > >  
> > > 2005-05-25 09:16:46 agentx/master: handle pdu
> > > (req=0x5d120d89,trans=0x0,sess=0x7)             
>    
> > >  
> > > 2005-05-25 09:16:46 agentx/master: send
> response,
> > > stat 0 (req=0x5d120d89,trans=0x0,sess=0x7)      
>    
> > > 2005-05-25 09:16:46 agentx_build: packet built
> okay 
> > >  
> > > 2005-05-25 09:16:46 agentx/master: FAILED 104
> -12
> > > Failure in sendto (Connection reset by peer)    
>                 
> > >
> 
> So the first sign of a problem is that the master
> agent can't send a response back to the subagent.
> 
> But the subagent is still trying to send stuff to
> the master agent:
> > > 2005-05-25 09:16:46 agentx/master: handle pdu
> > > (req=0x5d120d8a,trans=0x0,sess=0x7)             
>    
> > >
> > > 2005-05-25 09:16:46 agentx/master: send
> response,
> > > stat 0 (req=0x5d120d8a,trans=0x0,sess=0x7)      
>    
> > > 2005-05-25 09:16:46 agentx_build: packet built
> okay 
> > >  
> > > 2005-05-25 09:16:46 agentx/master: FAILED 32 -12
> > > Failure in sendto (Broken pipe)
> 
> and things get totally confused!
> 
> 
> > > I think the FAILED - 104 is when I kill my
> subagent
> 
> Err... now I'm confused.
> I thought you said it was the master agent that got
> killed, not the subagent.  That's certainly the
> subject
> of this thread.
> 
  Well, first time (times actually) this happened, my
subagent would freeze and I would kill it. So I
checked what was wrong and snmpd was not running, so I
assumed my subagent was killing it. Now I realize that
no one really dies. Actually it looks like my subagent
provoked a deadlock with master agentx. So it is there
waiting to send the final traps while master agent x
is there waiting for something and not responding
anyone. And they go like that forever. snmptrapd
cannot reconnect until I kill my subagent. After that
snmptrapd is able to connect to master agentx again
and master agentx debug starts spitting those FAILED
lines beggining with one FAILED - 104 and then a lot
of FAILED - 32 (with broken pipes). snmptrapd also
displays some more traps after I kill my subagent.

 I said (at least tried to) earlier but I think I was
not clear enough. And perhaps not enough now too, but
I 'm clueless about what matters and what doesn't. And
I'm giving symptons like: "All I know is that it hurts
inside my belly."

> 
> Dave



--
Salsa

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