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From mcasandra <mohitanch...@gmail.com>
Subject Error when bringing up nodes during failure testing
Date Thu, 03 Mar 2011 17:39:32 GMT
Whenever I do failure testing I see this error message and then cassandra
process exits. This is what I am doing: 


1. 3 node cluster. CF of RF=3, W=QUORUM and R=QUORUM 
2. Execute client code in a loop which just reads data from CF in while
loop. 
2. Bring one node down (Node C). Everything ok. Client is happy (as
expected) 
3. Bring one more node down (Node A). Client throws error (as expected) 
4. Bring one node up and then I receive following error message in cassandra
and cassandra exits at this point. 

Please help. But sometimes when I bring some other node up first (Node C)
and then bring up this node (A)then it works. Not sure what's going on here. 

Error in Cassandra logs:

ERROR 15:36:55,153 Exception encountered during startup. 
java.lang.IllegalStateException: replication factor (3) exceeds number of
endpoints (2) 
        at
org.apache.cassandra.locator.SimpleStrategy.calculateNaturalEndpoints(SimpleStrategy.java:60)

        at
org.apache.cassandra.locator.AbstractReplicationStrategy.getRangeAddresses(AbstractReplicationStrategy.java:204)



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