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Cassandra

Cassandra node says it owns 0%??

Today I ran in a little bit of a problem with an new Cassandra node installation.

After the node was created, I ran nodetool and got this:

 $ bin/nodetool status
Datacenter: dc1
===============
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
--  Address    Load       Tokens       Owns (effective)  Host ID   Rack
UN  127.0.0.1  219.83 KiB 256          0.0%              73bd8721  rack1

It took me a little while to find out that the problem was the IP address. Although it clearly says 127.0.0.1 here, the cassandra.yaml configuration file had localhost.

I edited the ...

Unable to complete the operation against any hosts — from Cassandra

Today I was testing a new intsallation that I prepared in the last month or so and once I hit Cassandra, I got this strange message:

   NoHostAvailable: ('Unable to complete the operation against any hosts',
   {<Host: 192.168.2.92 dc1>: Unavailable('Error from server: code=1000
   [Unavailable exception] message="Cannot achieve consistency level ONE"
   info={\'required_replicas\': 1, \'alive_replicas\': 0, \'consistency\': \'ONE\'}',)})

I looked for a solution with Google but was not really able to find anything that ...

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