-Re: timestamp order
Venkat 2013-04-23, 00:59
It looks like versioningiterator gives me the past versions for a cell
.... but I need to look across rows ..
I am inserting time series data for set of machines into accumulo and i am
using a combo of machineid + timestamp as the row ID and metric as the cq.
So for me to get the last time a metric has been inserted for an asset, i
need to look across row IDs and get the last 5 rows that got inserted with
that metric ...
On Mon, Apr 22, 2013 at 2:48 PM, Billie Rinaldi <[EMAIL PROTECTED]>wrote:
> You could use a VersioningIterator with maxVersions set to 5.
> On Mon, Apr 22, 2013 at 11:29 AM, Venkat <[EMAIL PROTECTED]> wrote:
>> hello accumulo,
>> what is a good way to get rows in chronological order ? i am trying to
>> get to a use case of "give me the last 5 inserted for this particular cf,
>> cq ..." timestampfilter works well when I know the times but i dont know
>> the exact times of insertion.