Re: Atomically adding a column to columns_

2010-09-29 Thread Peter Schuller
> It would be good to document this, or, since the > correct-even-for-remove logic is not much more complicated, switch to > that. Submitted: https://issues.apache.org/jira/browse/CASSANDRA-1559 -- / Peter Schuller

Re: Atomically adding a column to columns_

2010-09-27 Thread Jonathan Ellis
On Mon, Sep 27, 2010 at 1:54 PM, Peter Schuller wrote: > In the case of this bit of code, I believe, and I am not speaking > authoritatively, the removal only happens in (1) the read path when > filtering results (on presumably query-local data) and (2) during > compaction (on presumably compactio

Re: Atomically adding a column to columns_

2010-09-27 Thread Peter Schuller
> Function addColumn at class SuperColumn tries to atomically add a column to > the concurrent collection “columns_” using the following code: Deletions in Cassandra involve an insertion of a tombstone rather than actual column deletion. In the case of this bit of code, I believe, and I am not sp