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cliflags: deprecate using without
--sql-addr
Release note (backward-incompatible change): Using a single TCP port listener for both RPC (node-node) and SQL client connections is now deprecated. This capability will be removed in the next version of CockroachDB. Deployments are invited to perform either one of the following changes: - (preferred:) keep port 26257 for SQL, and allocate a new port, e.g. 36257, for node-node RPC connections. For example: --listen-addr=:36257 --sql-addr=:26257 \ --join=othernode:36257,othernode:26257 This will become the default configuration in the next version of CockroachDB. When using this mode of operation, care should be taken to use a `--join` flag that include both the old and new port numbers for other nodes, so that no network partition occurs during the upgrade. - (optional:) keep port 26257 for RPC, and allocate a new port, e.g. 36257, for SQL connections. For example: --listen-addr=:26257 --sql-addr=:36257 When using this mode of operation, the `--join` flags do not need to be modified. However, SQL client apps or the SQL load balancer configuration (when in use) should be updated to use the new SQL port number.
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