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Posted to commits@cassandra.apache.org by "Shailaja Koppu (Jira)" <ji...@apache.org> on 2022/01/24 21:42:00 UTC
[jira] [Comment Edited] (CASSANDRA-17224) Add a virtual table for exposing prepared statements metrics
[ https://issues.apache.org/jira/browse/CASSANDRA-17224?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17481155#comment-17481155 ]
Shailaja Koppu edited comment on CASSANDRA-17224 at 1/24/22, 9:41 PM:
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Fix is at [https://github.com/apache/cassandra/pull/1421|https://github.com/apache/cassandra/pull/1421,] please review.
was (Author: JIRAUSER282877):
Fix is at [https://github.com/apache/cassandra/pull/1421,] please review.
> Add a virtual table for exposing prepared statements metrics
> ------------------------------------------------------------
>
> Key: CASSANDRA-17224
> URL: https://issues.apache.org/jira/browse/CASSANDRA-17224
> Project: Cassandra
> Issue Type: Improvement
> Components: Feature/Virtual Tables, Observability/Metrics
> Reporter: Benjamin Lerer
> Assignee: Shailaja Koppu
> Priority: Normal
> Labels: AdventCalendar2021, lhf
> Fix For: 4.x
>
> Time Spent: 40m
> Remaining Estimate: 0h
>
> There are some existing metrics within {{CQLMetrics}} that provide metrics about prepared statements. We should expose those through a virtual table.
> +Additional information for newcomers:+
> A new class should be created for representing the new Virtual Table in {{org.apache.cassandra.db.virtual}}. You can look at {{ThreadPoolsTable}} for an example.
> The new table will need to be registered in {{SystemViewsKeyspace}}.
> Some unit tests will need to be added. For some example of virtual table tests you can look at {{SystemPropertiesTableTest}} and for some example of test around prepared statement metrics you can look into {{CQLMetricsTest}}.
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