Re: [389-users] memory allocator - calloc of 4098 elems of 4 bytes failed; OS error 12 (Cannot allocate memory)

[Rich Megginson]

On 12/24/2010 12:15 AM, mahao wrote:
> Hi all,
>       Fedora-ds was down for some reason,
>
>       And  I  got these logs:
>
> [23/Dec/2010:18:59:32 +0200] - libdb: User-specified malloc function 
> returned NULL
>
> [23/Dec/2010:18:59:32 +0200] - id2entry error 12
>
> [23/Dec/2010:18:59:32 +0200] - id2entry get error 12
>
> [23/Dec/2010:18:59:32 +0200] - next_search_entry db err 12
>
> [23/Dec/2010:18:59:32 +0200] memory allocator - calloc of 4098 elems 
> of 4 bytes failed; OS error 12 (Cannot allocate memory)
>
> The server has probably allocated all available virtual memory. To solve
>
> this problem, make more virtual memory available to your server, or reduce
>
> one or more of the following server configuration settings:
>
> nsslapd-cachesize        (Database Settings - Maximum entries in cache)
>
> nsslapd-cachememsize     (Database Settings - Memory available for 
> cache)
>
> nsslapd-dbcachesize      (LDBM Plug-in Settings - Maximum cache size)
>
> nsslapd-import-cachesize (LDBM Plug-in Settings - Import cache size).
>
> Can't recover; calling exit(1).
>   It looks like no more available virtual memory to use, so should 
>
> I set a lager nsslapd-dbcachesize?
>   I don't know if it will down again, and please give me some 
>
> advice . its important to me. Thanks a lot

What version of fedora-ds or 389-ds-base?
What platform?

This usually means you have run out of memory.  The usual thing is to 
reduce your cache sizes (as specified above).  Start with 
nsslapd-dbcachesize as the minimum.  Set nsslapd-cachememsize to be 
large enough to cache all of your entries, but no larger.
> BS
>
> Ma Hao