Re: [EXT] Re: MDB monitoring: How many free pages actually?

Le mar. 17 juin 2025 à 09:50, Windl, Ulrich u.windl@ukr.de a écrit :

Hi again!

I've implemented a Nagios compatible monitor for the MDB freespace, but I'm trying to understand: The "unused pages" are non-fragmented, obviously The "free pages" may be scattered all over, but are completely free May there exist partially free pages that are not accounted in the monitor info? Also for a huge change request are contiguous pages needed, or is only the number of available pages important?

Does MDB care about fragmentation at all?

Hello Ulrich,

you can also give a look to this Nagios plugin: https://ltb-project.org/documentation/check_lmdb_usage.html

It uses mdb_stats command.

Clément.