Hi Henrick,
When you say:
"If your application requires that all memcached instances are up
and running all the time, it's pretty likely that you are doing something
wrong, that you are using memcached in a way it was not intended for."
Does this mean you cannot use memcache for session management in PHP, coz
then you are relying on it for a key, facet of your application -- one you
cannot do without!!
Please advise........... Adi's concerns particularly resonate with mine.
Cheers.
2009/10/16 Henrik Schröder <[email protected]>
> Hi Adi,
>
> Why do you want failover? It's just a cache, so your application should be
> able to run ok if part of the cache cluster is unavailable, you would
> experience a slightly higher cache miss ratio.
>
> If your application requires that all memcached instances are up and
> running all the time, it's pretty likely that you are doing something wrong,
> that you are using memcached in a way it was not intended for. Please tell
> us a bit about your application and we can probably help you.
>
> That said, the BeITMemcached client supports consistent hashing, but there
> is no automatic failover, and no automatic recovery from failover, because
> those features would in the absolute majority of cases only cause subtle
> errors in the application, without offering any benefits whatsoever.
>
>
> /Henrik
>
>
> On Fri, Oct 16, 2009 at 13:55, Adi <[email protected]> wrote:
>
>>
>> Hi,
>> I am using memcached on windows server 2003 in a web cluster
>> environment setup through NLB (Network load balancer) and using two
>> different memcached server for caching, using BeIT Memcached client.
>>
>> I want to know if memcached doesn't provide failover explicitly than
>> is there any way to handle it?
>>
>> I had also check out the faqs, let me know please which windows client
>> provide consistent hashing if one memcached node is dead? Can i handle
>> it manually buy identifying the dead node and remove it from the
>> server list.
>>
>> Regards
>> Adeel Ahmed
>
>
>
