Re: DBERROR: Cannot allocate memory

[Lawrence Greenfield]

--On Friday, December 06, 2002 1:09 PM +1100 Rob Mueller <[EMAIL PROTECTED]> wrote:

This is probably more a berkeley DB question, but I'm wondering if anyone
else has seen this. Every now and then we see this in our imap log.

Dec  5 20:39:47 server2 lmtpd[24962]: DBERROR db3: Unable to allocate 4151
bytes from mpool shared region: Cannot allocate memory
Dec  5 20:39:47 server2 lmtpd[24962]: DBERROR: mystore: error storing
<xxx@yyy>: Cannot allocate memory

[...]

Anyway, has anyone else experienced this, or know of a solution?

This probably means you need to increase the size of one of the db memory pool, also known as the cache. It has nothing to do with system shared memory: the db memory pool is an mmap()d file in the db/ directory.

You can do this by making a DB_CONFIG file in the db/ directory that contains... lemme see... if it contains "set_cachesize <gigabytes> <megabytes> <kilobytes>" that should override what Cyrus compiles in with the set_cachesize() function call.

Larry