[jira] [Assigned] (AMBARI-25383) Ambari Metrics whitelisting is failing on * wildcard for Kafka Topics

["Szilard Antal (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AMBARI-25383?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Szilard Antal reassigned AMBARI-25383:
--------------------------------------

    Assignee: Szilard Antal  (was: Tamas Payer)

> Ambari Metrics whitelisting is failing on * wildcard for Kafka Topics
> ---------------------------------------------------------------------
>
>                 Key: AMBARI-25383
>                 URL: https://issues.apache.org/jira/browse/AMBARI-25383
>             Project: Ambari
>          Issue Type: Task
>          Components: ambari-metrics
>    Affects Versions: 2.6.0, 2.6.1, 2.6.2, 2.7.3, 2.7.4
>            Reporter: Tamas Payer
>            Assignee: Szilard Antal
>            Priority: Major
>              Labels: grafana, kafka, metrics, pull-request-available
>          Time Spent: 50m
>  Remaining Estimate: 0h
>
> On Ambari 2.6.x and 2.7.x if the Ambari Metrics Collector whitelisting is enabled, the Kafka Topics are not discovered on the Kafka topics dashboard. (The Topics dropdown is empty.)
> It can be remediated by adding '._p_kafka.log.Log.*' to the whitelist file and restarting the Metrics Collector.
>  Adding the '._p_kafka.log.Log.*' to the whitelist file by default should be considered. Also it should be investigated why we need the "._p_" prefix.
> Furthermore, it seems that the metrics enabled in the whitelist file as:
> {code:java}
> kafka.server.BrokerTopicMetrics.BytesInPerSec.topic.*.count
> kafka.server.BrokerTopicMetrics.BytesOutPerSec.topic.*.count
> kafka.server.BrokerTopicMetrics.MessagesInPerSec.topic.*.count
> kafka.server.BrokerTopicMetrics.TotalProduceRequestsPerSec.topic.*.count
> {code}
> are filtered out and not shown on Grafana dashboard.
> The issue can be worked around by adding the '._p_' prefix to the corresponding metrics in the whitelist file, e.g.
> ._p_kafka.server.BrokerTopicMetrics.BytesInPerSec.topic.*.count .



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