On 4/9/2011 7:52 PM, aaron morton wrote:
My understanding of what they did with locking (based on the examples)
was to achieve a level of transaction isolation
http://en.wikipedia.org/wiki/Isolation_(database_systems)
http://en.wikipedia.org/wiki/Isolation_%28database_systems%29
I think the
Atomic on a single machine yes.
-
Aaron Morton
Freelance Cassandra Developer
@aaronmorton
http://www.thelastpickle.com
On 23 Jun 2011, at 09:42, AJ wrote:
On 4/9/2011 7:52 PM, aaron morton wrote:
My understanding of what they did with locking (based on the examples) was
to
Thanks Aaron!
On 6/22/2011 5:25 PM, aaron morton wrote:
Atomic on a single machine yes.
-
Aaron Morton
Freelance Cassandra Developer
@aaronmorton
http://www.thelastpickle.com
On 23 Jun 2011, at 09:42, AJ wrote:
On 4/9/2011 7:52 PM, aaron morton wrote:
My understanding of
A Strategy that should Cover at least some use Cases is roughly like this:
Given cf A and B should Be in Sync
In write 'a' to cf A Add another Column 'Synchronisation_token' and Write a
tuuid 'T' (or a timestamp or some Otter Value that Allows (Time based)
ordering) As its value.
On the
My understanding of what they did with locking (based on the examples) was to
achieve a level of transaction isolation
http://en.wikipedia.org/wiki/Isolation_(database_systems)
I think the issue here is more about atomicity
http://wiki.apache.org/cassandra/FAQ#batch_mutate_atomic
We cannot
Hi, I was wondering if there are any patterns/best practices for
creating atomic units of work when dealing with several column families
and their inverted indices.
For example, if I have Users and Groups column families and did
something like:
Users.insert( user_id, columns )
I'm interested in this too, but I don't think this can be done with Cassandra
alone. Cassandra doesn't support transactions. I think hector can retry
operations, but I'm not sure about the atomicity of the whole thing.
On Apr 8, 2011, at 1:26 PM, Alex Araujo wrote:
Hi, I was wondering if
On 4/8/11 5:46 PM, Drew Kutcharian wrote:
I'm interested in this too, but I don't think this can be done with Cassandra
alone. Cassandra doesn't support transactions. I think hector can retry
operations, but I'm not sure about the atomicity of the whole thing.
On Apr 8, 2011, at 1:26 PM,
Here's a good writeup on how fightmymonster.com does it...
http://ria101.wordpress.com/category/nosql-databases/locking/
--
Dan Washusen
Make big files fly
visit digitalpigeon.com
On Saturday, 9 April 2011 at 11:53 AM, Alex Araujo wrote:
On 4/8/11 5:46 PM, Drew Kutcharian wrote:
I'm
