incompatibility w/ 0.7 schemas
------------------------------

                 Key: CASSANDRA-2450
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2450
             Project: Cassandra
          Issue Type: Bug
          Components: Core
    Affects Versions: 0.8
            Reporter: Jonathan Ellis
            Assignee: Jon Hermes
             Fix For: 0.8


If you create a SimpleStrategy keyspace under 0.7, then switch to 0.8, you will 
get this error on startup:

{noformat}
ERROR 14:31:41,725 Exception encountered during startup.
java.lang.RuntimeException: org.apache.cassandra.config.ConfigurationException: 
SimpleStrategy requires a replication_factor strategy option.
        at org.apache.cassandra.db.Table.<init>(Table.java:277)
        at org.apache.cassandra.db.Table.open(Table.java:109)
        at 
org.apache.cassandra.service.AbstractCassandraDaemon.setup(AbstractCassandraDaemon.java:160)
        at 
org.apache.cassandra.service.AbstractCassandraDaemon.activate(AbstractCassandraDaemon.java:314)
        at 
org.apache.cassandra.thrift.CassandraDaemon.main(CassandraDaemon.java:80)
Caused by: org.apache.cassandra.config.ConfigurationException: SimpleStrategy 
requires a replication_factor strategy option.
        at 
org.apache.cassandra.locator.SimpleStrategy.validateOptions(SimpleStrategy.java:75)
        at 
org.apache.cassandra.locator.AbstractReplicationStrategy.createReplicationStrategy(AbstractReplicationStrategy.java:262)
        at 
org.apache.cassandra.db.Table.createReplicationStrategy(Table.java:327)
        at org.apache.cassandra.db.Table.<init>(Table.java:273)
        ... 4 more
{noformat}

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