There are limits to the size of your cache, but Memcache LRU expiration
should be pushing out older items, not newer items that are going into the
cache. Also, a deploy should not be causing this to occur.

What steps can be taken to reproduce this? What are the size of the blobs,
and what load can I use to cause this to happen?

On Wed, Dec 9, 2009 at 4:04 PM, Martin Caslavsky <[email protected]>wrote:

> Yes, cache maps Strings (URLs) to byte[] blobs (RSS feed content).
>
> Martin
>
> On Dec 10, 12:13 am, "Ikai L (Google)" <[email protected]> wrote:
> > What kind of objects are you storing the cache? Are you storing large
> binary
> > objects?
> >
> > On Tue, Dec 8, 2009 at 12:23 AM, Martin Caslavsky <[email protected]
> >wrote:
> >
> >
> >
> > > Sorry, it is dmczum.
> > > FYI redeploy of the app helps for a few hours.
> >
> > > Martin
> >
> > > On Dec 8, 2:20 am, "Ikai L (Google)" <[email protected]> wrote:
> > > > Martin,
> >
> > > > Can you provide your app ID? I'm not able to look up czumdm.
> >
> > > > On Sun, Dec 6, 2009 at 4:40 PM, Martin Caslavsky <
> [email protected]
> > > >wrote:
> >
> > > > > Hi,
> >
> > > > > my java app (czumdm) was over quota, so I enabled billing. First
> > > > > request was processed at 12-06 04:10PM 11.559. App worked correctly
> --
> > > > > most request was processed  from JCache (logged as "execute()
> > > > > skipping") and several request was processed directly (logged as
> > > > > "execute()").
> >
> > > > > But as of 12-06 04:15PM 49.099 the method call
> cache.containsKey(key)
> > > > > returns false, thus no request is processed from cache!
> >
> > > > > Cache statistics shows some cached objects (correct) but hits count
> is
> > > > > stalled and miss count is increasing (weird).
> >
> > > > > Greets
> > > > > Martin
> >
> > > > > --
> >
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> <google-appengine-java%[email protected]<google-appengine-java%[email protected]>
> >
> > > <google-appengine-java%[email protected]<google-appengine-java%[email protected]>
> <google-appengine-java%[email protected]<google-appengine-java%[email protected]>
> >
> >
> > > > > .
> > > > > For more options, visit this group at
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> >
> > > > --
> > > > Ikai Lan
> > > > Developer Programs Engineer, Google App Engine
> >
> > > --
> >
> > > You received this message because you are subscribed to the Google
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> <google-appengine-java%[email protected]<google-appengine-java%[email protected]>
> >
> > > .
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> >
> > --
> > Ikai Lan
> > Developer Programs Engineer, Google App Engine
>
> --
>
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>
>


-- 
Ikai Lan
Developer Programs Engineer, Google App Engine

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