describe_schema_versions on the thrift API (SystemManager.describe_schema_versions() on pycassa) is what you are after.
Call it before hand to know what's what, and then call until all nodes converge on the new schema. Cheers ----------------- Aaron Morton Freelance Developer @aaronmorton http://www.thelastpickle.com On 30/08/2012, at 1:30 AM, "Hiller, Dean" <dean.hil...@nrel.gov> wrote: > The playOrm test suite drops the keyspace and recreates it for tests to wipe > out the in-memory or cassandra db. Today, we successfully ran our test suite > on a 6 node cluster. The one issue I had though was I needed to sleep after > keyspace creation and column family creation. BEFORE that I researched if > could increase the write consistency from QUORUM to ALL instead of sleeping > WHERE in this special case ALL meant the whole cluster ;) not just the > replicated nodes as when you write data. Looking at the thrift api, this > looks like it does not exist though or am I mistaken? > > If anyone knows of a method I can call that will not return until all nodes > know about the new keyspace and another for the new column family, please do > let me know. (I am hoping that doesn't block data write/read operations of > the cluster in general of course). > > In our system, we are constantly creating new column families….in fact, it is > part of a data upload process and so for now I need to sleep BUT I don't know > how long I have to sleep for :( :( :( so a blocking method call would be much > better. > > Thanks, > Dean
