On Mon, Jun 14, 2010 at 7:27 AM, Matthew Conway <m...@backupify.com> wrote:
>
> On Jun 13, 2010, at Sun Jun 13, 9:34 PM, Benjamin Black wrote:
>
>> On Sun, Jun 13, 2010 at 5:58 PM, Matthew Conway <m...@backupify.com> wrote:
>>> The ability to dynamically add new column families.  Our app is currently 
>>> under heavy development, and we will be adding new column families at least 
>>> once a week after we have shipped the initial production app. From the 
>>> existing docs, it seemed to me that the procedure for changing schema in 
>>> 0.6 is very manual in nature and thus error prone and likely to cause data 
>>> corruption.  Feel free to correct me if I'm wrong :)
>>>
>>
>> I do schema manipulations in 0.6 regularly.  The answer is automation.
>
> I already have automation, whats missing are the details of the exact steps I 
> need to automate to accomplish the schema modification on a live cluster.  
> Even the FAQ just points to the feature in 0.7 trunk.

Huh?  http://wiki.apache.org/cassandra/FAQ#modify_cf_config

> Even if I were to use 0.6, the same question stands - if the data format is 
> going to change, I need to know if there will be an upgrade path between the 
> formats.  I'm using trunk right now, but once I find a version that works for 
> me (i.e. without the file descriptor leaks) I'm unlikely to upgrade again 
> till 0.7 is released.

0.7 will be able to read 0.6 data files.

-- 
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of Riptano, the source for professional Cassandra support
http://riptano.com

Reply via email to