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https://issues.apache.org/jira/browse/CASSANDRA-19619?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Caleb Rackliffe updated CASSANDRA-19619:
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Attachment: ci_summary-1.html
> Enforce contract for internal metrics naming
> --------------------------------------------
>
> Key: CASSANDRA-19619
> URL: https://issues.apache.org/jira/browse/CASSANDRA-19619
> Project: Cassandra
> Issue Type: Task
> Components: Observability/Metrics
> Reporter: Maxim Muzafarov
> Assignee: Maxim Muzafarov
> Priority: Normal
> Fix For: 5.0-rc, 5.0.x, 5.x
>
> Attachments: ci_summary-1.html, ci_summary.html
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> Metrics have their internal representation which uniquely identifies a
> particular metric name. The name is formed as {{<metric group>.<metric
> type>.<metric name>.<metric scope>}}. For some metrics, the scope includes a
> metric name that is not necessary for uniqueness, this can be simplified.
> For example,
> {code}
> // AS IS
> org.apache.cassandra.metrics.StorageAttachedIndex.BalancedTreeIntersectionEarlyExits.my_keyspace.my_table.ColumnQueryMetrics.BalancedTreeIntersectionEarlyExits
> // TO BE
> org.apache.cassandra.metrics.StorageAttachedIndex.BalancedTreeIntersectionEarlyExits.my_keyspace.my_table.ColumnQueryMetrics
> {code}
> The metrics are filtered based on knowledge of how they are formatted, so
> having a metric scope without a built-in metric name also simplifies the way
> we filter metrics.
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