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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMBARI-16821) Improve TimelineMetricsCache eviction/flush logic using a cache library
Date Mon, 30 May 2016 17:06:13 GMT

    [ https://issues.apache.org/jira/browse/AMBARI-16821?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15306822#comment-15306822
] 

Hudson commented on AMBARI-16821:
---------------------------------

FAILURE: Integrated in Ambari-trunk-Commit #4961 (See [https://builds.apache.org/job/Ambari-trunk-Commit/4961/])
AMBARI-16821 Improve TimelineMetricsCache eviction/flush logic using a (dsen: [http://git-wip-us.apache.org/repos/asf?p=ambari.git&a=commit&h=46b2fcdef0b0fa9d741951cbb6f9c97b53d09be4])
* ambari-metrics/ambari-metrics-hadoop-sink/src/test/java/org/apache/hadoop/metrics2/sink/timeline/HadoopTimelineMetricsSinkTest.java
* ambari-metrics/ambari-metrics-common/pom.xml
* ambari-metrics/ambari-metrics-common/src/test/java/org/apache/hadoop/metrics2/sink/timeline/cache/TimelineMetricsCacheTest.java
* ambari-metrics/ambari-metrics-common/src/main/java/org/apache/hadoop/metrics2/sink/timeline/cache/TimelineMetricsCache.java


> Improve TimelineMetricsCache eviction/flush logic using a cache library
> -----------------------------------------------------------------------
>
>                 Key: AMBARI-16821
>                 URL: https://issues.apache.org/jira/browse/AMBARI-16821
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-metrics
>    Affects Versions: 2.2.2
>            Reporter: Dmytro Sen
>            Assignee: Dmytro Sen
>             Fix For: 2.4.0
>
>         Attachments: AMBARI-16821_1.patch, AMBARI-16821_2.patch
>
>
> The TimelineMetricsCache implementation in the metrics sink side is currently a ConcurrentSkipListMap.
It is better to use pre built cache libraries like Guava that offer more support.



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