Troubleshooting
Problem
Connection errors with cqlsh and other DSE tools
Ifauthentication_options are enabled (true) in the dse.yaml, credentials are required to launch cqlsh and other tools:
cqlsh -u username -p password
If a client connection is attempted without permission, the following error occurs:
Connection error: ('Unable to connect to any servers', {'127.0.0.1': error(111, "Tried connecting to [('127.0.0.1', 9042)]. Last error: Connection refused")})
See Providing credentials with cqlsh and SSL certificate doesn't match.
Document Location
Worldwide
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Historical Number
ka06R000000EsX5QAK
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Document Information
Modified date:
30 January 2026
UID
ibm17259085