THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
...
Specifying Post processing Functions
Similar to aggregate functions, post processing functions can also be specified. Currently, we have 2 post processing functions - rate (Rate per second) and diff (difference between consecutive values). Post processing functions can be also be applied after aggregate functions.
Examples
http://<AMS_HOST>:6188/ws/v1/timeline/metrics?metricNames=regionserver.Server.totalRequestCount._rate,regionserver.Server.writeRequestCount._diff&appId=hbase&startTime=14000000&endTime=14200000
http://<AMS_HOST>:6188/ws/v1/timeline/metrics?metricNames=regionserver.Server.readRequestCount._max._diff&appId=hbase&startTime=14000000&endTime=14200000
Specifying Wild Cards
Both metricNames and hostname take wildcard (%) values for a group of metric (or hosts). A query can have a combination of full metric names and names with wildcards also.
Examples
http://<AMS_HOST>:6188/ws/v1/timeline/metrics?metricNames=regionserver.Server.%&appId=hbase&startTime=14000000&endTime=14200000
http://<AMS_HOST>:6188/ws/v1/timeline/metrics?metricNames=regionserver.Server.%&hostname=abc.testdomain124.devlocal&appId=hbase&startTime=14000000&endTime=14200000
http://<AMS_HOST>:6188/ws/v1/timeline/metrics?metricNames=master.AssignmentManger.ritCount,regionserver.Server.%&hostname=abc.testdomain124.devlocal&appId=hbase&startTime=14000000&endTime=14200000
http://<AMS_HOST>:6188/ws/v1/timeline/metrics?metricNames=regionserver.Server.%&hostname=abc.testdomain12%.devlocal&appId=hbase&startTime=14000000&endTime=14200000
Downsampling
As discussed before, AMS downsamples data when higher time ranges are requested. The default "downsampled across time" data returned is AVG. Specific downsamples can be requested by adding the aggregate function qualifiers ( ._avg, ._max, ._min, ._sum ) to the metric names the same way like requesting aggregates across the cluster.
Example
http://<AMS_HOST>:6188/ws/v1/timeline/metrics?metricNames=regionserver.Server.totalRequestCount._max&hostname=abc.testdomain124.devlocal&appId=hbase&startTime=14000000&endTime=14200000&precision=MINUTES
The above query returns 5 minute data for the metric, where the data point value is the MAX of the values found in every 5 minute range.
...