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From Vram Kouramajian <vram.kouramaj...@gmail.com>
Subject Site Not Surviving a Single Cassandra Node Crash
Date Sat, 09 Apr 2011 18:52:43 GMT
We have a 5 Cassandra nodes with the following configuration:

Casandra Version: 0.6.11
Number of Nodes: 5
Replication Factor: 3
Client: Hector 0.6.0-14
Write Consistency Level: Quorum
Read Consistency Level: Quorum
Ring Topology:
   Owns    Range                                      Ring

132756707369141912386052673276321963528
192.168.89.153Up         4.15 GB       33.87%
20237398133070283622632741498697119875     |<--|
192.168.89.155Up         5.17 GB       18.29%
51358066040236348437506517944084891398     |   ^
192.168.89.154Up         7.41 GB       33.97%
109158969152851862753910401160326064203    v   |
192.168.89.152Up         5.07 GB       6.34%
119944993359936402983569623214763193674    |   ^
192.168.89.151Up         4.22 GB       7.53%
132756707369141912386052673276321963528    |-->|

We believe that our setup should survive the crash of one of the
Cassandra nodes. But, we had few crashes and the system stopped
functioning until we brought back the Cassandra nodes.

Any clues?

Vram

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