[Cassandra Wiki] Update of "FAQ" by BrandonWilliams

[Apache Wiki <wi...@apache.org>]

Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Cassandra Wiki" for change notification.

The "FAQ" page has been changed by BrandonWilliams.
http://wiki.apache.org/cassandra/FAQ?action=diff&rev1=67&rev2=68

--------------------------------------------------

   * [[#no_keyspaces|Why were none of the keyspaces described in storage-conf.xml loaded?]]
   * [[#gui|Is there a GUI admin tool for Cassandra?]]
   * [[#a_long_is_exactly_8_bytes|Insert operation throws InvalidRequestException with message "A long is exactly 8 bytes"]]
+  * [[#clustername_mismatch|Cassandra says "ClusterName mismatch: oldClusterName != newClusterName" and refuses to start]]
  
  <<Anchor(cant_listen_on_ip_any)>>
  
@@ -281, +282 @@

  	}
  }}}
  
+ <<Anchor(clustername_mismatch)>>
+ 
+ == Cassandra says "ClusterName mismatch: oldClusterName != newClusterName" and refuses to start ==
+ 
+ To prevent operator errors, Cassandra stores the name of the cluster in its system table.  If you need to rename a cluster for some reason, it is safe to remove system/LocationInfo* if you've specified the node's token in the config file, or if you don't care about preserving the node's token (for instance in single node clusters.)
+