THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
(Work in progress)
Ambari Metrics System ("AMS") is a system for collecting, aggregating and serving Hadoop and system metrics in Ambari-managed clusters.
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The JIRA Epic for Ambari Metrics System delivery is https://issues.apache.org/jira/browse/AMBARI-5707 and was first introduced with Ambari 2.0.0. |
Terminology
| Term | Definition |
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Ambari Metrics System (“AMS”) | The built-in metrics collection system for Ambari. |
Metrics Collector | The standalone server that collects metrics, aggregates metrics, serves metrics from the Hadoop service sinks and the Metrics Monitor. |
Metrics Monitor | Installed on each host in the cluster to collect system-level metrics and forward to the Metrics Collector. |
Metrics Hadoop Sinks | Plugs into the various Hadoop components sinks to send Hadoop metrics to the Metrics Collector. |
Architecture
Following image depicts the high level conceptual architecture of the new Ambari Metrics System.:
Key design points in the conceptual architecture:The Metrics Collector
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is daemon that receives data from registered publishers
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Additionally, the metrics collector provides ability to plugin aggregators for the collected metric data and streams data to the aggregation layer in real-time.
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The current system implementation does a post-write aggregation and does not require live streaming of the data to the aggregation layer.
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Ambari Views on top of Phoenix provide ad-hoc query capability to the user along with a customized views for deployed services.
(the Monitors and Sinks). The Collector itself is build using Hadoop technologies such as HBase Phoenix and ATS. The Collector can store data on the local filesystem (referred to as "embedded mode") or use an external HDFS (referred to as "distributed mode").
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The entire System can be installed and managed by Ambari. The Service Definition can be found here: |
Learn More
Browse the following to learn more about the Ambari Metrics REST API specification and about advanced Configuration of AMS
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.