Extract useful information from a log file

[alledm]

Hello,

I am trying to extract (and retain as "item" data) some information that we have stored in log file.

For example say that a process writes down every run the amount of processed data in a log file

timestamp: Process (1811) wrote 30894 rows
[cut]
timestamp: Process (1854) wrote 45354 rows

What is the best approach to read those values and import them in the zabbix framework?

The LOG item type is useful but does not do the trick of actually exporting (through a regexp) the value and importing it in zabbix.

Can you think of a way? Do you think this would be a nice feature to have?

Regards
Alessandro

[meb5]

Yes, I think this would be a very helpful feature. A new Item type call "vfs.file.regextract" that would allow you to match on a string and then extract and return only a portion of data from within the line.

Using your example:
timestamp: Process (1811) wrote 30894 rows
timestamp: Process (1854) wrote 45354 rows

It would be cool if you could create an Item like this:

vfs.file.regextract[/logs/row-data.log,"wrote (\d+) rows", 1]

would result in this data:
1st match: 30894
2nd match: 45354

Item definition:

vfs.file.regextract[<path to file>, <pattern to match>, <number of lines to read>]