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From S C <as...@outlook.com>
Subject cluster issues
Date Mon, 28 Jan 2013 17:29:09 GMT



One of our node in a 3 node cluster drifted by ~ 20-25 seconds. While I figured this pretty
quickly, I had few questions that am looking for some answers.
We can always be proactive in keeping the time sync. But, Is there any way to recover from
a time drift (in a reactive manner)? Since it was a lab environment, I dropped the KS (deleted
data directory).Are there any other scenarios that would lead a cluster look like below? Note:Actual
topology of the cluster - ONE Cassandra node and TWO Analytic nodes.

On 192.168.2.100Address         DC          Rack        Status State   Load            Owns
               Token                                                                     
                                                            113427455640312821154458202477256070485
    192.168.2.100  Cassandra   rack1       Up     Normal  601.34 MB       33.33%         
    0                                           192.168.2.101  Analytics   rack1       Down
  Normal  149.75 MB       33.33%              56713727820156410577229101238628035242     
192.168.2.102  Analytics   rack1       Down   Normal  ?               33.33%             
113427455640312821154458202477256070485   
On 192.168.2.101Address         DC          Rack        Status State   Load            Owns
               Token                                                                     
                                                            113427455640312821154458202477256070485
    192.168.2.100  Analytics   rack1       Down   Normal  ?               33.33%         
    0                                           192.168.2.101  Analytics   rack1       Up
    Normal  158.59 MB       33.33%              56713727820156410577229101238628035242   
  192.168.2.102  Analytics   rack1       Down   Normal  ?               33.33%           
  113427455640312821154458202477256070485    
On 192.168.2.102Address         DC          Rack        Status State   Load            Owns
               Token                                                                     
                                                            113427455640312821154458202477256070485
    192.168.2.100  Analytics   rack1       Down   Normal  ?               33.33%         
    0                                           192.168.2.101  Analytics   rack1       Down
  Normal  ?               33.33%              56713727820156410577229101238628035242     
192.168.2.102  Analytics   rack1       Up     Normal  117.02 MB       33.33%             
113427455640312821154458202477256070485     

Appreciate your valuable inputs.
Thanks,SC
 		 	   		  
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