[CASSANDRA-7905] Not enough replica available for query at consistency ONE (1 required but only 0 alive)

• Type: Bug
• Status: Resolved
• Priority: Normal
• Resolution: Not A Problem
• Fix Version/s: 2.1 rc6

Environment

Windows 7 32 bit - Oracle JDK 1.8

• Severity: Normal
• Assignee: Unassigned
• Reporter: Piero Ottuzzi
• Created: 09/Sep/14 15:50
• Updated: 16/Apr/19 09:31
• Resolved: 14/Sep/14 05:02

Description

Hi,

I'm toying around with Cassandra and I setup a local 3 node cluster:

nodetool -u cassandra -pw cassandra -h node01 status
Starting NodeTool
Note: Ownership information does not include topology; for complete information, specify a keyspace
Datacenter: DC1
================
Status=Up/Down

/ State=Normal/Leaving/Joining/Moving – Address Load Tokens Owns Host ID Rack UN 192.168.118.254 33,38 KB 2 0,1% ab527444-6ea5-4948-8002-3f92ecc2093f RAC1 UN 192.168.118.1 49,84 KB 256 50,1% d707d7d1-642b-46b2-8c98-17b02a947088 RAC1 UN 192.168.118.2 4,09 KB 256 49,8% a6531780-44ce-4eea-ad9d-1c83b7782d43 RAC1

All nodes are part of DC1/RAC1.
Then I created a new keyspace:
CREATE KEYSPACE IF NOT EXISTS loose_data WITH REPLICATION =

{ 'class' : 'NetworkTopologyStrategy', 'dc1' : 1 }

AND durable_writes = false;

And finally when I try an insert in this keyspace using Datastax Java Driver 2.1 I get:
com.datastax.driver.core.exceptions.UnavailableException: Not enough replica available for query at consistency ONE (1 required but only 0 alive)

As you can see above the cluster is running well and the 3 nodes know each other.
Inspecting keyspace definition I see:
cqlsh> SELECT * FROM system.schema_keyspaces;

keyspace_name | durable_writes | strategy_class | strategy_options
--------------------------------------------------------------------------------+---------------------------
loose_data | False | org.apache.cassandra.locator.NetworkTopologyStrategy |

{"dc1":"1"}

So, to my noob eyes, everything looks right... what am I missing?

Thanks in advance
Sincerely
Piero