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From Narendra Sharma <narendra.sha...@gmail.com>
Subject Re: Cassandra ring not behaving like a ring
Date Wed, 15 Jan 2014 22:59:28 GMT
RF=3.
On Jan 15, 2014 1:18 PM, "Andrey Ilinykh" <ailinykh@gmail.com> wrote:

> what is the RF? What does nodetool ring show?
>
>
> On Wed, Jan 15, 2014 at 1:03 PM, Narendra Sharma <
> narendra.sharma@gmail.com> wrote:
>
>> 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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