[jira] [Updated] (CASSANDRA-16378) Expose application_name and application_version in virtual table system_views.clients

["Benjamin Lerer (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-16378?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Benjamin Lerer updated CASSANDRA-16378:
---------------------------------------
    Status: Review In Progress  (was: Patch Available)

> Expose application_name and application_version in virtual table system_views.clients
> -------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-16378
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-16378
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Feature/Virtual Tables
>            Reporter: Tibor Repasi
>            Assignee: Tibor Repasi
>            Priority: Normal
>              Labels: AdventCalendar2021, gsoc2021, lhf, mentor
>          Time Spent: 40m
>  Remaining Estimate: 0h
>
> Recent java-driver's [com.datastax.oss.driver.api.core.session.SessionBuilder|https://docs.datastax.com/en/drivers/java/4.9/com/datastax/oss/driver/api/core/session/SessionBuilder.html] respects properties [ApplicationName|https://docs.datastax.com/en/drivers/java/4.9/com/datastax/oss/driver/api/core/session/SessionBuilder.html#withApplicationName-java.lang.String-] and [ApplicationVersion|https://docs.datastax.com/en/drivers/java/4.9/com/datastax/oss/driver/api/core/session/SessionBuilder.html#withApplicationVersion-java.lang.String-].
> It would be helpful to exposed this information via virtual table {{system_views.clients}} and with {{nodetool clientstats}}.
> +Additional information for newcomers:+
> The drivers can send as part of the {{STARTUP MESSAGE}} the {{APPLICATION_NAME}} and {{APPLICATION_VERSION}} options. To new volatile fields {{applicationName}} and {{applicationVersion}} need to be added to {{ClientState}} in a similar way to {{driverName}} and {{driverVersion}}.
> The  {{APPLICATION_NAME}} and {{APPLICATION_VERSION}} optionsneed to be retrieved in {{StartupMessage#execute}} and passed to the {{ClientState}}. 
> The new {{application_name}} and {{application_version}} columns need to be added to the {{system_views.clients}} represented by the {{ClientsTable}} class. The data then need to be retrieved from the {{ClientState}} through {{ConnectedClient}}.
> Some unit tests similat to {{SettingsTableTest}} should be added. 



--
This message was sent by Atlassian Jira
(v8.20.1#820001)

---------------------------------------------------------------------
To unsubscribe, e-mail: commits-unsubscribe@cassandra.apache.org
For additional commands, e-mail: commits-help@cassandra.apache.org