You are viewing a plain text version of this content. The canonical link for it is here.

Posted to commits@cassandra.apache.org by Apache Wiki <wi...@apache.org> on 2011/07/25 20:42:28 UTC

[Cassandra Wiki] Update of "ReadRepair" by jeremyhanna

Dear Wiki user,

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

The "ReadRepair" page has been changed by jeremyhanna:
http://wiki.apache.org/cassandra/ReadRepair?action=diff&rev1=3&rev2=4

Comment:
Adding special case for range scans against CL.ONE

  
  This means that in almost all cases, at most the first instance of a query will return old data.
  
+ One special case to consider: when doing range scans at !ConsistencyLevel ONE, read repair is not done at all - neither before returning nor as a background thread.  This is especially relevant for the built-in Hadoop support.  By default it uses !ConsistencyLevel ONE and does range scans through the column family.
+