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• Modifying retention interval for time aggregated data.
  (Note: In Ambari 2.0 and 2.1, the Phoenix version does not support Alter TTL queries. So these can be modified from the UI, only at install time. Please refer to Known Issues section for workaround.)

  Property	Default Valuevalue	Description
  timeline.metrics.host.aggregator.ttl	86400	1 minute resolution data purge interval. Default is 1 day.
  timeline.metrics.host.aggregator.minute.ttl	604800	Host based X minutes resolution data purge interval. Default is 7 days. (X = configurable interval, default interval is 5 2 minutes) Default is 7 days.
  timeline.metrics.host.aggregator.hourly.ttl	2592000	Host based hourly resolution data purge interval. Default is 30 days.
  timeline.metrics.host.aggregator.daily.ttl	31536000	Host based daily resolution data purge interval. Default is 1 year.
  timeline.metrics.cluster.aggregator.minute.ttl	2592000	Cluster wide minute resolution data purge interval. Default is 30 days.
  timeline.metrics.cluster.aggregator.hourly.ttl	31536000	Cluster wide hourly resolution data purge interval. Default is 1 year.
  timeline.metrics.cluster.aggregator.daily.ttl	63072000	Cluster wide daily resolution data purge interval. Default is 2 years.

  Note: The precision table at 1 minute resolution stores raw precision data for 1 day, when user queries for past 1 hour of data, the AMS API returns raw precision data.
  
  

• Modifying the aggregation intervals for HOST and CLUSTER aggregators.

  On wake up the aggregator threads resume from (last run time + interval) as long as last run time is not too old.

  Property	Default value	Description
  timeline.metrics.host.aggregator.minute.interval	120	Time in seconds to sleep for the minute resolution host based aggregator. Default resolution is 2 minutes.
  timeline.metrics.host.aggregator.hourly.interval	3600	Time in seconds to sleep for the hourly resolution host based aggregator. Default resolution is 1 hour.
  timeline.metrics.daily.aggregator.minute.interval	86400	Time in seconds to sleep for the day resolution host based aggregator. Default resolution is 24 hours.
  timeline.metrics.cluster.aggregator.minute.interval	120	Time in seconds to sleep for the minute resolution cluster wide aggregator. Default resolution is 2 minutes.
  timeline.metrics.cluster.aggregator.hourly.interval	3600	Time in seconds to sleep for the hourly resolution cluster wide aggregator. Default is 1 hour.
  timeline.metrics.cluster.aggregator.daily.interval	86400	Time in seconds to sleep for the day resolution cluster wide aggregator. Default is 24 hours.