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https://issues.apache.org/jira/browse/CASSANDRA-16378?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17463358#comment-17463358
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Tibor Repasi commented on CASSANDRA-16378:
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Finally, nodetool can also expose the options (admittedly, is not very pretty)
{code}
% bin/nodetool clientstats --all
Address SSL Cipher Protocol Version User Keyspace
Requests Driver-Name Driver-Version
Client-Options
localhost/127.0.0.1:50576 false undefined undefined 5 anonymous
3 DataStax Python Driver 3.25.0
{"DRIVER_VERSION":"3.25.0","DRIVER_NAME":"DataStax Python
Driver","CQL_VERSION":"3.4.5"}
/127.0.0.1:50594 false undefined undefined 5 anonymous
3 DataStax Java driver for Apache Cassandra(R) 4.13.0
{"DRIVER_NAME":"DataStax Java driver for Apache
Cassandra(R)","APPLICATION_VERSION":"1.2.3","DRIVER_VERSION":"4.13.0","CLIENT_ID":"e502fa5a-7e63-4c30-b960-7b41870a8bd9","APPLICATION_NAME":"TestApp","CQL_VERSION":"3.0.0"}
localhost/127.0.0.1:50575 false undefined undefined 5 anonymous
16 DataStax Python Driver 3.25.0
{"DRIVER_VERSION":"3.25.0","DRIVER_NAME":"DataStax Python
Driver","CQL_VERSION":"3.4.5"}
/127.0.0.1:50593 false undefined undefined 5 anonymous
18 DataStax Java driver for Apache Cassandra(R) 4.13.0
{"DRIVER_NAME":"DataStax Java driver for Apache
Cassandra(R)","APPLICATION_VERSION":"1.2.3","DRIVER_VERSION":"4.13.0","CLIENT_ID":"e502fa5a-7e63-4c30-b960-7b41870a8bd9","APPLICATION_NAME":"TestApp","CQL_VERSION":"3.0.0"}
Total connected clients: 4
User Connections
anonymous 4
{code}
> 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
>
> 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.
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