Monitor DB2 with Nagios

Project Notes

This set of scripts is in continuous development, thus new scripts are being developed and new ones have been planned. If you want to share your own modifications, you can share it in GitHub (Pull request).

The whole documentation is on the Wiki: [https://github.com/angoca/monitor-db2-with-nagios/wiki]
Example of usage, output and performance data are also availables: [https://github.com/angoca/monitor-db2-with-nagios/wiki/Scripts]

For the moment, you can monitor:

* Quantity of connexions, filtered by many criteria (machines, users) and showing their status.
* Checks if a connection to the database can be established.
* Checks the database size. Based on the Storage management utility.
* Checks the HADR status, by analyzing peer status and calculating the difference between primary et standby (logs et pages)
* Checks if the instance is active.
* Keeps a history of last backups (full, delta, incremental) and could throw an alert if the backup is too old.
* Checks the locks looking for long term lock waits, returning with process is holding the locks.
* Checks the log consumption per day. Allows you identify the most expensive transaction measured by logs produced.
* Log usage, that allows you identify how many primary and secondary logs are being used during the day.
* Open files by the db2sysc process.
* Performance of the IO Cleaners by identifying the percentage of Bad Page Cleaner Triggers (PBPDT).
* Quantity of message in the db2diag.log. Useful to detect alerts that are not part of any output.
* Tablespace: Use and state (normal, backup, etc.)
* Utilities: Allows you to identify which utilities could impact the normal db usage.

The scripts have been adapted to be used with Check_MK (The output was changed.)

The project is hosted in the GitHub forge. You can improve the provided scripts, or create your own based on these scripts. If you want to contribute to the project with your own scripts, your code is welcome.