After Controller has collected new statistics, it compresses old data for each compression level by taking all intervals of the length specified by the Interval configuration parameter, and replacing them with an average or sample value.

Controller begins compression at the point where statistics have a timestamp that is divisible by the value of the Interval configuration parameter. An average value is used for compression of numerical statistics. For other statistics, Controller uses the most frequent value in the statistics for compression.

If you set Interval to 0, Controller removes statistics that are older than the value of MinAge, rather than compressing them.

For clarity, Autonomy recommends that you specify the name of the level that deletes statistics as ThrowAway, rather than CompressLevelN.

Type: Long
Default: None
Required: Yes
Configuration Section: CompressLevelN
Example: Interval=120
See Also: Levels