[rrd-developers] Understanding HW

Kiss Gabor (Bitman) kissg at ssg.ki.iif.hu
Mon Feb 19 11:09:24 CET 2007

Dear folks,

I try to study deep details of Holt-Winters related code.

In rrd_crate.c (1.2.15) I found that "seasonal period" and "rows" parameters
of DEVSEASONAL, SEASONAL and FAILURES RRAs are simply ignored.
These values are always overridden by "seasonal period" of HWPREDICT.

See lines like
	current_rra -> row_cnt = period;
in create_hw_contingent_rras().

Is this true or did I miss something?


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