Difference between revisions of "Public.getmanagepercentavailnodewindow (function)"
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== wikibot == | == wikibot == | ||
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| + | {| border="1" cellpadding="5" cellspacing="0" style="border-collapse:collapse" | ||
| + | |- valign="top" | ||
| + | | '''Function | ||
| + | | public.getmanagepercentavailnodewindow | ||
| + | |} | ||
| + | |||
| + | === Source === | ||
| + | <pre> | ||
CREATE OR REPLACE FUNCTION public.getmanagepercentavailnodewindow(integer, timestamp without time zone, timestamp without time zone) | CREATE OR REPLACE FUNCTION public.getmanagepercentavailnodewindow(integer, timestamp without time zone, timestamp without time zone) | ||
RETURNS double precision | RETURNS double precision | ||
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END; | END; | ||
$function$ | $function$ | ||
| − | + | </pre> | |
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Latest revision as of 10:19, 27 August 2011
wikibot[edit]
| Function | public.getmanagepercentavailnodewindow |
Source[edit]
CREATE OR REPLACE FUNCTION public.getmanagepercentavailnodewindow(integer, timestamp without time zone, timestamp without time zone)
RETURNS double precision
LANGUAGE plpgsql
AS $function$
DECLARE
nid ALIAS FOR $1;
xtime ALIAS FOR $2;
ytime ALIAS FOR $3;
downtime float8 := 0.0;
count integer := 0;
rollingWindow float := 0;
totalServiceTime float := 0;
BEGIN
IF xtime < ytime THEN
rollingWindow := EXTRACT (EPOCH FROM (ytime - xtime));
downtime := getManagedOutageForNodeInWindow(nid, ytime, xtime)/1000;
ELSE
rollingWindow := EXTRACT (EPOCH FROM (xtime - ytime));
downtime := getManagedOutageForNodeInWindow(nid, xtime, ytime)/1000;
END IF;
count := getManagedServiceCountForNode(nid);
totalServiceTime := count * rollingWindow;
IF totalServiceTime > 0 THEN
RETURN 100 * (1 - (downtime / totalServiceTime));
ELSE
IF totalServiceTime = 0 THEN
RETURN 100;
ELSE
RETURN -1;
END IF;
END IF;
END;
$function$
