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https://issues.apache.org/jira/browse/CASSANDRA-14275?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16397876#comment-16397876
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Dinesh Joshi commented on CASSANDRA-14275:
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Hi [~iamaleksey],
I have resolved all issues in your feedback. Regarding #4 - My original thought
was that driver info (name, version, etc.) should ideally be set at the same
time. I split this into two methods now. Now calling {{setDriverVersion}}
without first calling {{setDriverName}} causes a silent failure. I am not sure
how you'd like to handle this situation? I can throw a {{ProtocolException}}
but I'm not sure. I'll defer the decision to you.
Here's how the output looks with clients that supply the information -
{noformat}
16:44 $ ./bin/nodetool clientstats --all
Address SSL Version User Keyspace Requests Driver-Name
Driver-Version
/127.0.0.1:51029 false 4 anonymous 12 DataStax Java Driver
3.4.1-SNAPSHOT
/127.0.0.1:51030 false 4 anonymous 2 DataStax Java Driver
3.4.1-SNAPSHOT
Total connected clients: 2
User Connections
anonymous 2
{noformat}
Some clients may not support sending driver information -
{noformat}
16:47 $ ./bin/nodetool clientstats --all
Address SSL Version User Keyspace Requests Driver-Name
Driver-Version
/127.0.0.1:51029 false 4 anonymous 14 DataStax Java Driver
3.4.1-SNAPSHOT
/127.0.0.1:51460 false 4 anonymous 13 undefined
undefined
/127.0.0.1:51030 false 4 anonymous 4 DataStax Java Driver
3.4.1-SNAPSHOT
/127.0.0.1:51461 false 4 anonymous 2 undefined
undefined
Total connected clients: 4
User Connections
anonymous 4
{noformat}
> Cassandra Driver should send identification information to Server
> -----------------------------------------------------------------
>
> Key: CASSANDRA-14275
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14275
> Project: Cassandra
> Issue Type: New Feature
> Components: Core
> Reporter: Dinesh Joshi
> Assignee: Dinesh Joshi
> Priority: Major
> Fix For: 4.x
>
>
> Currently there doesn't seem to be any way to readily identify the driver
> that clients are using to connect to Cassandra. Add the capability of
> identifying the driver through metadata information much like how HTTP
> Clients identify themselves through User-Agent HTTP header. This is useful
> for debugging in large deployments where clients tend to use different
> drivers, wrappers and language bindings to connect to Cassandra. This can
> help surface issues as well as help detect clients which are using older or
> unsupported drivers.
> The identification information should be a string that unambiguously
> identifies the driver. It should include information such as the name of the
> driver, it's version, CQL version, Platform (Linux, macOS, Windows, etc.) and
> architecture (x86, x86_64).
> We should surface this information in `nodetool clientstats` command.
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