http://www.datastax.com/support-forums/topic/cannot-decrease-replication-factor Software, Support, and Training for Apache Cassandra en-US Wed, 22 May 2013 16:52:27 +0000 http://bbpress.org/?v=1.0.3 q http://www.datastax.com/support-forums/search.php http://www.datastax.com/support-forums/topic/cannot-decrease-replication-factor#post-1324 Wed, 07 Mar 2012 13:48:56 +0000 Anonymous 1324@http://www.datastax.com/support-forums/ <p>It works, thank you. </p> http://www.datastax.com/support-forums/topic/cannot-decrease-replication-factor#post-1322 Wed, 07 Mar 2012 12:02:44 +0000 Anonymous 1322@http://www.datastax.com/support-forums/ <p>Thank you for the answer, and Yes, it's 0.74 version.<br /> My boss said upgrade to 1.0 isn't so transparent. It has some client issues.<br /> I'll try this UPDATE and send feedback asap. </p> http://www.datastax.com/support-forums/topic/cannot-decrease-replication-factor#post-1309 Tue, 06 Mar 2012 18:42:07 +0000 nickmbailey 1309@http://www.datastax.com/support-forums/ <p>It looks like you are on a 0.7.x version of cassandra. Firstly, I would recommend upgrading.</p> <p>In 0.7 I think the syntax for updating the replication factor is:</p> <p>UPDATE KEYSPACE CRUISE_FRONTEND WITH replication_factor=1; </p> http://www.datastax.com/support-forums/topic/cannot-decrease-replication-factor#post-1258 Wed, 29 Feb 2012 19:08:17 +0000 Anonymous 1258@http://www.datastax.com/support-forums/ <p>Hi, I want to rebalance a two-node-imbalanced cluster with the MOVE clause.</p> <p> /usr/local/apache-cassandra-0.7.4/bin/nodetool -h localhost -p 8180 move 0</p> <p>When I run the command it fails</p> <p> Exception in thread "main" java.lang.IllegalStateException: replication factor (2) exceeds number of endpoints (1)</p> <p>Interpreting the error message, I try to decrease replication_factor with no success</p> <p># /usr/local/apache-cassandra-0.7.4/bin/cassandra-cli<br /> Welcome to cassandra CLI.</p> <p>Type 'help;' or '?' for help. Type 'quit;' or 'exit;' to quit.<br /> [default@unknown] connect 10.215.218.128/9160;<br /> Connected to: "Test Cluster 0.7.4" on 10.215.218.128/9160<br /> [default@unknown] describe keyspace CRUISE_FRONTEND;<br /> WARNING: Could not connect to the JMX on 10.215.218.128:8080, information won't be shown.</p> <p>Keyspace: CRUISE_FRONTEND:<br /> Replication Strategy: org.apache.cassandra.locator.SimpleStrategy<br /> Replication Factor: 2<br /> Column Families:<br /> ColumnFamily: cruise_userSession_data<br /> Columns sorted by: org.apache.cassandra.db.marshal.BytesType<br /> Row cache size / save period: 0.0/0<br /> Key cache size / save period: 20000.0/3600<br /> Memtable thresholds: 0.29/255/59<br /> GC grace seconds: 864000<br /> Compaction min/max thresholds: 2/11<br /> Read repair chance: 1.0</p> <p>[default@unknown] UPDATE KEYSPACE CRUISE_FRONTEND WITH strategy_options = [{replication_factor:1}];<br /> 38d50bf5-6308-11e1-ba07-47a5949fc98a<br /> Waiting for schema agreement...<br /> ... schemas agree across the cluster</p> <p>[default@unknown] describe keyspace CRUISE_FRONTEND;<br /> WARNING: Could not connect to the JMX on 10.215.218.128:8080, information won't be shown.</p> <p>Keyspace: CRUISE_FRONTEND:<br /> Replication Strategy: org.apache.cassandra.locator.SimpleStrategy<br /> Replication Factor: 2<br /> Column Families:<br /> ColumnFamily: cruise_userSession_data<br /> Columns sorted by: org.apache.cassandra.db.marshal.BytesType<br /> Row cache size / save period: 0.0/0<br /> Key cache size / save period: 20000.0/3600<br /> Memtable thresholds: 0.29/255/59<br /> GC grace seconds: 864000<br /> Compaction min/max thresholds: 2/11<br /> Read repair chance: 1.0</p> <p>What's wrong?</p> <p>Fernando. </p>