Cache entry size limit?

Garrett, Philip (MAN-Corporate) Philip.Garrett at
Tue Nov 16 08:19:50 PST 2004

On Mon, 15 Nov 2004 21:31:27 -0500
"Michael Alan Dorman" <mdorman at> wrote:
> "Garrett, Philip (MAN-Corporate)" <Philip.Garrett at> writes:
> > Is there a size limit to individual cache entries in memcached?  My
> > memcached server is choking on sizes slightly smaller than 1 megabyte.
> I think the output you reproduced shows your limit at, um, 12MB?
> > STAT limit_maxbytes 134217728

Actually, it's 128 MB.

> You might try increasing the memory allocated to memcached; it uses a
> slab allocator, and while this is resistant to fragmentation in the
> presence of many relatively small objects, with large objects it can
> result in unfortunate amounts of wasted memory.

I still have the same trouble, even when giving memcached 256 MB.  By the
there are *no* other entries in the cache at this point.

STAT limit_maxbytes 268435456

<4 set key1 0 0 1048535
>4 SERVER_ERROR out of memory

<4 set key1 0 0 1048534

Is there a ~1MB limit on cache entries?


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