[CASSANDRA-13311] cqlsh doesn't let you connect to an older major version

• Type: Bug
• Status: Resolved
• Priority: Normal
• Resolution: Duplicate
• Fix Version/s: 3.0.13
• Severity: Normal
• Assignee: Unassigned
• Reporter: T Jake Luciani
• Created: 08/Mar/17 19:33
• Updated: 01/Aug/21 12:33
• Resolved: 08/Mar/17 20:05

Description

When trying to connect to an older version of cassandra from trunk I get the following error even though I am setting the correct version with --cqlversion

ProtocolError returned from server while using explicitly set client protocol_version 4

If I go in to cqlsh.py and change
DEFAULT_PROTOCOL_VERSION = 3

it works.

Issue Links

• duplicates: CASSANDRA-13307 The specification of protocol version in cqlsh means the python driver doesn't automatically downgrade protocol version.