[jira] [Assigned] (CASSANDRA-16354) python dtest fails to talk to 2.2 using protocol 4 but cqlsh has no issue

["Adam Holmberg (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-16354?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Adam Holmberg reassigned CASSANDRA-16354:
-----------------------------------------

    Assignee: Adam Holmberg

> python dtest fails to talk to 2.2 using protocol 4 but cqlsh has no issue
> -------------------------------------------------------------------------
>
>                 Key: CASSANDRA-16354
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-16354
>             Project: Cassandra
>          Issue Type: Bug
>          Components: CI, Test/dtest/python
>            Reporter: David Capwell
>            Assignee: Adam Holmberg
>            Priority: Normal
>             Fix For: 4.0-beta
>
>
> https://app.circleci.com/pipelines/github/dcapwell/cassandra/850/workflows/79486fdd-06d0-4d04-aa32-0fa648182356/jobs/5019/artifacts
> We see that upgrade tests which talk to 2.2 clusters fail with the following error
> {code}
> >   ???
> E   cassandra.cluster.NoHostAvailable: ('Unable to connect to any servers', {'127.0.0.1:9042': DriverException('ProtocolError returned from server while using explicitly set client protocol_version 4',)})
> {code}
> For some reason, setting protocol version 4 causes 2.2 to fail, but this does not happen when using cqlsh (from trunk) 
> {code}
> ./bin/cqlsh --protocol-version=4
> Connected to Test Cluster at 127.0.0.1:9042.
> [cqlsh 5.0.1 | Cassandra 2.2.20-SNAPSHOT | CQL spec 3.3.1 | Native protocol v4]
> Use HELP for help.
> {code}



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