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https://issues.apache.org/jira/browse/AMBARI-12654?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14700582#comment-14700582
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Hudson commented on AMBARI-12654:
---------------------------------
FAILURE: Integrated in Ambari-branch-2.1 #384 (See
[https://builds.apache.org/job/Ambari-branch-2.1/384/])
AMBARI-12654. Create a Caching layer that provides sliding window behavior for
metric requests to Ambari. (swagle) (swagle:
http://git-wip-us.apache.org/repos/asf?p=ambari.git&a=commit&h=b4ee1918d14af3602a01a1befe6107baa5b1221b)
*
ambari-server/src/main/java/org/apache/ambari/server/configuration/Configuration.java
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ambari-server/src/test/java/org/apache/ambari/server/controller/metrics/timeline/AMSReportPropertyProviderTest.java
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ambari-server/src/main/java/org/apache/ambari/server/controller/metrics/MetricsPropertyProviderProxy.java
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ambari-server/src/main/java/org/apache/ambari/server/controller/AmbariServer.java
* ambari-server/pom.xml
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ambari-server/src/test/java/org/apache/ambari/server/controller/metrics/timeline/cache/TimelineMetricCacheTest.java
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ambari-metrics/ambari-metrics-common/src/main/java/org/apache/hadoop/metrics2/sink/timeline/TimelineMetric.java
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ambari-server/src/main/java/org/apache/ambari/server/controller/metrics/timeline/AMSReportPropertyProvider.java
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ambari-server/src/main/java/org/apache/ambari/server/controller/metrics/MetricsPropertyProvider.java
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ambari-server/src/main/java/org/apache/ambari/server/controller/metrics/timeline/AMSHostPropertyProvider.java
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ambari-server/src/main/java/org/apache/ambari/server/controller/metrics/timeline/cache/TimelineAppMetricCacheKey.java
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ambari-server/src/main/java/org/apache/ambari/server/controller/metrics/MetricsPaddingMethod.java
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ambari-server/src/main/java/org/apache/ambari/server/controller/metrics/timeline/MetricsRequestHelper.java
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ambari-server/src/test/java/org/apache/ambari/server/controller/metrics/timeline/AMSPropertyProviderTest.java
*
ambari-server/src/main/java/org/apache/ambari/server/controller/internal/StackDefinedPropertyProvider.java
*
ambari-server/src/main/java/org/apache/ambari/server/controller/metrics/timeline/cache/TimelineMetricCacheEntryFactory.java
*
ambari-server/src/main/java/org/apache/ambari/server/controller/metrics/timeline/cache/TimelineMetricCacheProvider.java
*
ambari-server/src/main/java/org/apache/ambari/server/controller/ControllerModule.java
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ambari-server/src/main/java/org/apache/ambari/server/controller/AmbariManagementControllerImpl.java
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ambari-server/src/main/java/org/apache/ambari/server/controller/internal/AbstractProviderModule.java
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ambari-server/src/main/java/org/apache/ambari/server/controller/metrics/timeline/AMSHostComponentPropertyProvider.java
*
ambari-server/src/test/java/org/apache/ambari/server/controller/internal/StackDefinedPropertyProviderTest.java
*
ambari-server/src/main/java/org/apache/ambari/server/controller/internal/TemporalInfoImpl.java
*
ambari-server/src/main/java/org/apache/ambari/server/controller/metrics/MetricsReportPropertyProviderProxy.java
*
ambari-metrics/ambari-metrics-timelineservice/src/main/java/org/apache/hadoop/yarn/server/applicationhistoryservice/metrics/timeline/aggregators/TimelineMetricClusterAggregatorMinute.java
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ambari-server/src/main/java/org/apache/ambari/server/controller/metrics/MetricsReportPropertyProvider.java
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ambari-server/src/main/java/org/apache/ambari/server/controller/metrics/timeline/AMSComponentPropertyProvider.java
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ambari-server/src/main/java/org/apache/ambari/server/controller/metrics/timeline/cache/TimelineMetricCache.java
*
ambari-server/src/main/java/org/apache/ambari/server/controller/AmbariManagementController.java
*
ambari-server/src/main/java/org/apache/ambari/server/controller/metrics/timeline/cache/TimelineMetricsCacheValue.java
*
ambari-server/src/main/java/org/apache/ambari/server/controller/metrics/timeline/AMSPropertyProvider.java
> Create a Caching layer that provides sliding window behavior for metric
> requests to Ambari
> ------------------------------------------------------------------------------------------
>
> Key: AMBARI-12654
> URL: https://issues.apache.org/jira/browse/AMBARI-12654
> Project: Ambari
> Issue Type: Task
> Components: ambari-server
> Affects Versions: 2.0.0
> Reporter: Siddharth Wagle
> Assignee: Siddharth Wagle
> Priority: Critical
> Fix For: 2.1.2
>
>
> _Objectives_:
> - In-memory caching of timeseries data for 1 hour queries.
> - Support of service and dashboard metrics only
> - Cache refresh is for a small segment of data vs requesting 1 hour data
> every time.
> - On demand cache with sliding window implementation
> - Zero/Null padding data does not appear in the cache
> - Cache functionality can be turned on / off using config knob
> - Caching policy is a cache-as-sor (Cache as System of Record), all
> queries for Service Metrics will be returned from cache if caching is enabled
> and query window fits Cache timeseries window, example 1 hour.
> - Host metric queries will still goto AMS, this prevents host specific
> data to be cached. This decision is based on usage/access pattern from Ambari
> web UI.
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