cql - Trying to login to cassandra's console (cqlsh) and it rejects me -

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i trying set user authentication cassandra when had following problem.

first have updated cassandra.yaml with:

authenticator: passwordauthenticator

then created system_auth keyspace replication_factor of 3 as:

create keyspace system_auth replication =  { 'class' : 'simplestrategy', 'replication_factor' : 3};

then re-ran cassandra command:

bin/cassandra

then after that, proceeded , made sure repair node(s) (though not sure if understand why important/necessary):

nodetool repair

even after doing of steps cassandra/java yells @ me with:

    traceback (most recent call last):   file "/home/tscobb/documents/bm/apache-cassandra-2.0.5/bin/cqlsh", line 2044, in <module>     main(*read_options(sys.argv[1:], os.environ))   file "/home/tscobb/documents/bm/apache-cassandra-2.0.5/bin/cqlsh", line 2030, in main     display_float_precision=options.float_precision)   file "/home/tscobb/documents/bm/apache-cassandra-2.0.5/bin/cqlsh", line 480, in __init__     cql_version=cqlver, transport=transport)   file "/home/tscobb/documents/bm/apache-cassandra-2.0.5/bin/../lib/cql-internal-only-1.4.1.zip/cql-1.4.1/cql/connection.py", line 143, in connect   file "/home/tscobb/documents/bm/apache-cassandra-2.0.5/bin/../lib/cql-internal-only-1.4.1.zip/cql-1.4.1/cql/connection.py", line 59, in __init__   file "/home/tscobb/documents/bm/apache-cassandra-2.0.5/bin/../lib/cql-internal-only-1.4.1.zip/cql-1.4.1/cql/thrifteries.py", line 157, in establish_connection   file "/home/tscobb/documents/bm/apache-cassandra-2.0.5/bin/../lib/cql-internal-only-1.4.1.zip/cql-1.4.1/cql/cassandra/cassandra.py", line 465, in login   file "/home/tscobb/documents/bm/apache-cassandra-2.0.5/bin/../lib/cql-internal-only-1.4.1.zip/cql-1.4.1/cql/cassandra/cassandra.py", line 486, in recv_login cql.cassandra.ttypes.authenticationexception: authenticationexception(why='org.apache.cassandra.exceptions.unavailableexception: cannot achieve consistency level quorum')

honestly, @ point not sure how proceed. if has ideas, appreciated.

i running cassandra 2.0.5 in ubuntu vm. not sure if helps @ all.

also, when run:

nodetool status

the following comes up:

nodetool status datacenter: datacenter1 ======================= status=up/down |/ state=normal/leaving/joining/moving --  address load    tokens  owns   host id                              rack un  127.0.0.1  1.57 mb  256     100.0%  37ae1d4c-0df5-43d2-9593-4603ac68c34a  rack1 

'class' : 'simplestrategy', 'replication_factor' : 3

as have 1 node in cluster, setting replication factor of 3 problem. here article describes replication in cassandra. should give quick read through. 1 part in particular applies here:

when replication factor exceeds number of nodes, writes rejected, reads served long desired consistency level can met.

cannot achieve consistency level quorum

cassandra computes "quorum" (replication_factor / 2) + 1. if have replication factor of 3, 2 nodes need running consistency level met.

basically, set replication factor down 1, , should fine.


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