[erlang-questions] eheap_alloc crash when using mnesia

[Yongbeom Pak]

Thanks for all comments, i did not have proper solution than reducing the
amount of the data that is processing on the selecting queries.
Thanks again.

2008/10/22 Matthew Dempsky <matthew@REDACTED>

> On Wed, Oct 22, 2008 at 1:33 AM, Robert Raschke <rtrlists@REDACTED>
> wrote:
> > Are you sure that uses plain old memory allocation for its cache
> > entries (I haven't looked, I must admit)?
>
> Yes, I chose dnscache as a concrete example because it's a server
> whose internals I'm thoroughly familiar with. :-)
>
> dnscache allocates a big chunk of memory (1000000 bytes by default) up
> front for cache storage, but while processing requests, it allocates
> additional memory for temporary storage for names relevant to the
> resolution process.
>
> E.g., if a cache receives a query for "www.erlang.org", it allocate 16
> bytes to store that name.  While resolving this query, it also
> allocates temporary space for "a.root-servers.net",
> "d0.org.afilias-nst.org", "ns.erlang.org", and so on.  Names are
> promptly freed as soon as they are no longer needed, but if allocating
> space for one of these names fails, then dnscache gives up on
> resolving "www.erlang.org" and the user tries again later.
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