Hinted handoff not working after rolling upgrade from 0.8.7 to 1.0.2
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                 Key: CASSANDRA-3466
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3466
             Project: Cassandra
          Issue Type: Bug
    Affects Versions: 1.0.2
            Reporter: Jonas Borgström


While testing rolling upgrades from 0.8.7 to 1.0.2 on a test cluster I've 
noticed that hinted hand-off didn't always work properly. Hints generated on an 
upgraded node does not seem to be delivered to other newly upgraded nodes once 
they rejoin the ring. They only way I've found to get a node to deliver its 
hints is to restart it.

Here's some steps to reproduce this issue:

1. Install cassandra 0.8.7 on node1 and node2 using default settings.
2. Create keyspace foo with {replication_factor: 2}. Create column family bar
3. Shutdown node2 
4. Insert data into bar and verify that HintsColumnFamily contains hints
5. Start node2 and verify that hinted handoff is performed and 
HintsColumnFamily becomes empty.
6. Upgrade "node1" to cassandra 1.0.2 and repeat step 3-5.
7. Notice that hinted handoff is not performed when "node2" goes online. (Only 
after node1 is restarted)


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