If there is one thing you can say today, it is "disk is cheap".

I'd just have the collector write the data to disk files with sequence numbers or dates in their names. So either set a maximum file size of 400MB (for example) and just go to the next sequence number when you hit that or go to a new file every hour or N minutes.

Then have a separate process that extracts data from these files, summarizes it, stores it in a more permanent place, and finally deletes the file when it is sure that both it and the file writer are done with it (or have a separate step that deletes files so you can recover if you find a bug in the analysis or can purge unanalyzed files if the backlog gets really, really huge).

I'd think that any other scheme is going to be pretty vulnerable to loss of data.

        - tye (but my friends call me "Tye")

In reply to (tye)Re: Perl Performance Question by tye
in thread How can I maximize performance for my router netflow analyzer? (was: Perl Performance Question) by IkomaAndy

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