Just tried to make quick change to enable it but it didn't work out :-(

               ColumnFamily cachedRow = cfs.getRawCachedRow(mutation.key());
               
                // What I modified
                if( cachedRow == null ) {
                    cfs.cacheRow(mutation.key());
                    cachedRow = cfs.getRawCachedRow(mutation.key());
                }
                               
                if (cachedRow != null)
                    cachedRow.addAll(columnFamily);

How can I open a ticket for you to make the change (enable row cache write through with an option)?

Thanks,
-Weijun

On Tue, Feb 16, 2010 at 5:20 PM, Jonathan Ellis <jbellis@gmail.com> wrote:
On Tue, Feb 16, 2010 at 7:17 PM, Jonathan Ellis <jbellis@gmail.com> wrote:
> On Tue, Feb 16, 2010 at 7:11 PM, Weijun Li <weijunli@gmail.com> wrote:
>> Just started to play with the row cache feature in trunk: it seems to be
>> working fine so far except that for RowsCached parameter you need to specify
>> number of rows rather than a percentage (e.g., "20%" doesn't work).
>
> 20% works, but it's 20% of the rows at server startup.  So on a fresh
> start that is zero.
>
> Maybe we should just get rid of the % feature...

(Actually, it shouldn't be hard to update this on flush, if you want
to open a ticket.)