Memcache is shared across your application instances. It's a separate
process.
On Fri, May 14, 2010 at 7:01 PM, Thomas wrote:
> Hi Jaroslav:
>
> GAE is currently single-homed
> according to
> http://groups.google.com/group/google-appengine-java/browse_thread/thread/cccb943347b3c6a7/338eede3100f3
Hi Jaroslav:
GAE is currently single-homed
according to
http://groups.google.com/group/google-appengine-java/browse_thread/thread/cccb943347b3c6a7/338eede3100f366
On 5月14日, 下午7時41分, Jaroslav Záruba wrote:
> ...I just want to be sure. I had the impression that two 'my' JVMs
> might not even resi
Does it mean Memcached === the Memcache we use within AppEngine?
I'm particularly interested in whether AppEngine Memcache is shared
among all the JVMs that have been started for my application. Based on
this I assume yes:
"High performance scalable web applications often use _a distributed_
in-mem
thanks for the link.
have tried the @version with shards. the output counter seems not to
be unique... i think there is no other way to mimic the sequence
generator like other rdbms without using normal transactions with
optimistic locking of the entity.
On Mar 12, 1:49 am, datanucleus wrote:
>
> could you give me simple example on how to use the @version,
The DataNucleus docs define that, and much more
http://www.datanucleus.org/products/accessplatform/jdo/orm/versioning.html
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Hi blake,
could you give me simple example on how to use the @version, or any
reference material?
thanks!
On Mar 9, 11:35 pm, Blake wrote:
> You could also go with the sharded counter strategy. The more shards
> you have, the less the chance that you'll have a collision, and you'd
> use @Versi
You could also go with the sharded counter strategy. The more shards
you have, the less the chance that you'll have a collision, and you'd
use @Version for optimistic locking on each shard.
On Mar 9, 7:18 am, legendlink wrote:
> Thanks for the reply.
>
> If memcache is used, how do I implement i
Thanks for the reply.
If memcache is used, how do I implement it so that the counter would
always be updated and not be deleted?
On Mar 6, 4:35 am, "Ikai L (Google)" wrote:
> Have you looked into Memcache's INCR?
>
> http://code.google.com/appengine/docs/java/javadoc/com/google/appengi...,
> lon
