Check LMDB Usage¶
Presentation¶
This plugin checks percent of pages used and pages free in an LMDB database.
The calculation is based on this formula:
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$$really\,used = \frac{ pages\,used - pages\,free}{max\,pages}$$
For example:
$ perl check_lmdb_usage.pl -H /usr/local/openldap/var/openldap-data -w 30 -c 20 -r
OK - 65% pages used / 34% pages free
With performance data, it allows to create graph to follow evolution of this indicator.
Configuration¶
Required Perl modules:
- Getopt::Std
- File::Basename
You also require the mdb_stat utility.
Usage¶
$ perl check_lmdb_usage.pl -H <db_home> [-S <mdb_stat>] [-h] [-v] [-V]
Mandatory Options
| -H | Home of MDB files |
| -w | Warning threshold in percent |
| -c | Critical threshold in percent |
Other options
| -S | Path to mdb_stat utility |
| -v | Verbose |
| -V | Print version and exit |
| -h | Print help and exit |
| -f | Performance data |
| -r | Reverse mode, use warning and critical levels for free pages instead of used pages |
Download¶
This plugin, along with all other Nagios plugins from this site, can be downloaded in a single archive.