cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Ran Tavory <ran...@gmail.com>
Subject Re: what is the best way to truncate a column family
Date Fri, 18 Jun 2010 20:57:43 GMT
it will be immediate.
But it will fail if not all hosts in the cluster are up, this is the
tradeoff. We regard the truncate operation an admin api so I think it's a
fair tradeoff.

On Fri, Jun 18, 2010 at 11:50 PM, Phil Stanhope <pstanhope@wimba.com> wrote:

> In 0.6.x the iterating approach works ... but you need to flush and compact
> (after GCGraceSeconds) in order to NOT see the keys in the CF.
>
> Will the behavior of the truncate method in 0.7 require flush/compact as
> well? Or will it be immediate?
>
> -phil
>
> On Jun 18, 2010, at 1:29 PM, Benjamin Black wrote:
>
> > In 0.6 your only option with those constraints is to iterate over the
> > entire CF and deleting row by row.  This requires you are either using
> > OPP or have an index that covers all keys in the CF.  0.7 adds the
> > ability to truncate a CF (deleting all its rows) through the API.
> >
> > On Fri, Jun 18, 2010 at 10:24 AM, Claire Chang
> > <claire@merchantcircle.com> wrote:
> >> programmatically w/o bringing the servers down.
> >>
> >> thanks,
> >> claire
> >>
>
>

Mime
View raw message