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From Narendra Sharma <narendra.sha...@gmail.com>
Subject Cassandra ring not behaving like a ring
Date Wed, 15 Jan 2014 21:03:06 GMT
Sorry for the odd subject but something is wrong with our cassandra ring.
We have a 9 node ring as below.

N1 - UP/NORMAL
N2 - UP/NORMAL
N3 - UP/NORMAL
N4 - UP/NORMAL
N5 - UP/NORMAL
N6 - UP/NORMAL
N7 - UP/NORMAL
N8 - UP/NORMAL
N9 - UP/NORMAL

Using random partitioner and simple snitch. Cassandra 1.1.6 in AWS.

I added a new node with token that is exactly in middle of N6 and N7. So
the ring displayed as following
N1 - UP/NORMAL
N2 - UP/NORMAL
N3 - UP/NORMAL
N4 - UP/NORMAL
N5 - UP/NORMAL
N6 - UP/NORMAL
N6.5 - UP/JOINING
N7 - UP/NORMAL
N8 - UP/NORMAL
N9 - UP/NORMAL


I noticed that N6.5 is streaming from N1, N2, N6 and N7. I expect it to
steam from (worst case) N5, N6, N7, N8. What could potentially cause the
node to get confused about the ring?

-- 
Narendra Sharma
Software Engineer
*http://www.aeris.com <http://www.aeris.com>*
*http://narendrasharma.blogspot.com/ <http://narendrasharma.blogspot.com/>*

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