I can't believe I did that :). Feel very weird. But looking at the code I feel that there will be reads that will fail in the interim. Am I way off here? Apologies if I am wrong and I will continue looking. I am very curious is knowing how this works.
Cheers Bill On Thu, Feb 4, 2010 at 9:49 PM, Avinash Lakshman <avinash.laksh...@gmail.com > wrote: > Hi All > > First off Bill I don't think I brainwashed you to an extent where you start > signing off as me :). Don't do that on my check books. That's an interesting > question and like I had said I am not too sure about this is handled in the > current OSS version. Jonathan is your best bet for this response. Writes > will be handled fine like we discussed. > > Cheers > Avinash > > > On Thu, Feb 4, 2010 at 9:46 PM, Bill Hastings <bllhasti...@gmail.com>wrote: > >> >> >> ---------- Forwarded message ---------- >> From: Bill Hastings <bllhasti...@gmail.com> >> Date: Thu, Feb 4, 2010 at 9:41 PM >> Subject: Re: Adding new nodes >> To: cassandra-user@incubator.apache.org >> >> >> Hi All >> >> I just had a conversation with one of the FB guys (Avinash) at FB and >> landed up signing off as him :). He wasn't quite sure about how this works >> in the OSS branch. Hence the question to the broader audience. The question >> is more about the change in topology and reads going to a machine before >> data migration. >> >> Cheers >> Bill >> >> >> On Thu, Feb 4, 2010 at 9:36 PM, Bill Hastings <bllhasti...@gmail.com>wrote: >> >>> Sorry I guess I was not clear enough. While the existing data is being >>> moved do requests for reads go to the new nodes? If so what if that data has >>> not yet migrated? There is no problem for writes. But how is the routing for >>> the reads handled in this situation? >>> >>> Cheers >>> Avinash >>> >>> >>> On Thu, Feb 4, 2010 at 9:07 PM, Jonathan Ellis <jbel...@gmail.com>wrote: >>> >>>> Data is moved to the new correct nodes. >>>> >>>> On Thu, Feb 4, 2010 at 10:52 PM, Bill Hastings <bllhasti...@gmail.com> >>>> wrote: >>>> > Hi All >>>> > >>>> > Could someone explain to me how the following is done - when new nodes >>>> are >>>> > added how do we read existing data since the topology changes? How >>>> does >>>> > Cassandra ensure that reads and writes are successful? >>>> > >>>> > Cheers >>>> > Bill >>>> > >>>> >>> >>> >> >> >> >> -- >> Cheers >> Bill >> > > -- Cheers Bill
