How do I judge the value does not exist or there are problems in the server?

[Brian Moon]

芽雨@Gmail wrote:
> Hi, my English is not well, but I really want to participate in some 
> discussions.
> 
> I would like to ask some basis question for the use of libmemcache (the 
> C client).
> 
> When use the mc_aget() and it return the NULL, how do I judge the value 
> does not exist or there are problems in the server?
> 
> While testing the memcached, I edit the port with intent, this 
> simulation server problems (four port in one server). So the mc_aget() 
> return the NULL, I try to compare the ms->active before and after use of 
> the mc_aget(), but the ms->active has always been the value of t.
> 
> And I find the port was changed, so, should be compare the port whether 
> be changed?

We use cacti and nagios to monitor our memcached servers.  They tell us 
if the servers have problems or are down.  From my code (using the PHP 
client) I don't really have to care if there are server problems.  My 
code needs to run as fast as it can and not worry with what happened on 
a daemon.  There are other tools for monitoring that stuff.

-- 

Brian Moon
Senior Developer
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