This has me more confused.
Does this mean that ALL rows on a given node are only updated sequentially,
never in parallel?
On Thu, Jul 7, 2011 at 3:21 PM, Yang <teddyyyy123@gmail.com> wrote:
> just to add onto what jonathan said
>
> the columns are immutable . if u overwrite/ reconcile a new obj is
> created and shoved into the memtable
>
> there is a shared lock for all writes though which guard against an
> exclusive lock on memtable switching/flushing
> On Jul 7, 2011 7:51 AM, "A J" <s5alye@gmail.com> wrote:
> > Does a write lock:
> > 1. Just the columns in question for the specific row in question ?
> > 2. The full row in question ?
> > 3. The full CF ?
> >
> > I doubt read does any locks.
> >
> > Thanks.
>
--
It's always darkest just before you are eaten by a grue.
|