Nachiket Patil updated CASSANDRA-12681:
    Status: Patch Available  (was: Open)

> Reject empty options and invalid DC names in replication configuration while 
> creating or altering a keyspace.
> -------------------------------------------------------------------------------------------------------------
>                 Key: CASSANDRA-12681
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12681
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Distributed Metadata
>            Reporter: Nachiket Patil
>            Assignee: Nachiket Patil
>            Priority: Minor
>         Attachments: trunkpatch.diff, v3.0patch.diff
> Add some restrictions around create / alter keyspace with 
> NetworkTopologyStrategy:
> 1. Do not accept empty replication configuration (no DC options after class). 
> Cassandra checks that SimpleStrategy must have replication_factor option but 
> does not check that at least one DC should be present in the options for 
> NetworkTopologyStrategy.
> 2. Cassandra accepts any random string as DC name replication option for 
> NetworkTopologyStrategy while creating or altering keyspaces. Add a 
> restriction that the options specified is valid datacenter name. Using 
> incorrect value or simple mistake in typing the DC name can cause outage in 
> production environment.

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