On Wed, Apr 18, 2012 at 6:43 AM, vijayakumar <[email protected]> wrote:
> Mark, > Thanks for your help. I could say the number of keys would be in the > range of millions and total number of buckets is 4. > > What hardware are you running this on? Mark > Regards, > Vijayakumar. > > > On Tue, Apr 17, 2012 at 9:15 PM, Mark Phillips <[email protected]> wrote: > >> Hi Vijayakumar, >> >> >> On Sat, Apr 14, 2012 at 2:57 AM, vijayakumar <[email protected]>wrote: >> >>> Hi, >>> As our application moves from one release to another, we need to alter >>> the existing records in riak [Say changes like adding new field to the json >>> with a default value]. What's the ideal way to handle such schema changes >>> (if indexing is required for such fields). Is it possible to run a >>> mapreduce on existing buckets and update the records? I am not find any >>> help links for the above mentioned migration. >>> Riak Version:1.1 >>> >>> >> The short answer is "yes, that's possible". That said, at the moment I'm >> not aware of any existing code/resources that could walk you through it. >> Anyone have anything they can share? >> >> Keep in mind that running something like this over all your data is going >> to put a lot of load on your cluster and might lead to some timeouts and >> interesting debugging. Out of curiosity, how many keys do you need to >> update? >> >> Mark >> >> >>> Thanks and Regards, >>> Vijayakumar. >>> >>> >>> >>> _______________________________________________ >>> riak-users mailing list >>> [email protected] >>> http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com >>> >>> >> >
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