jiangyouu wrote:
Hi!I want preserve rrd database as long as possible,and review specific day (or hour even minute )'s specific data(like cpu Utilization rate ,network Utilization rate ),but the default value of dear Mr Ganglia is one year.
The resolution of stored data is configured when the rrd is generated, which is done by gmetad. If you need higher resolution you'd have to hack up the gmetad source to generate the RRA's you desire. The wishlist for gmetad mentions allowing custom RRA's, but it's not in yet.
The penalty this generates is the rrds use more disk space. I have no experience trying to store a year (or more) of per-minute data, but I would imagine it carries a performance penalty as well.
The other option is to do an rrd dump of the data, and archive that.
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