Return-Path: Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: (qmail 89002 invoked from network); 3 Mar 2011 11:52:14 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 3 Mar 2011 11:52:14 -0000 Received: (qmail 27325 invoked by uid 500); 3 Mar 2011 11:52:09 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 27301 invoked by uid 500); 3 Mar 2011 11:52:09 -0000 Mailing-List: contact user-help@cassandra.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@cassandra.apache.org Delivered-To: mailing list user@cassandra.apache.org Received: (qmail 27290 invoked by uid 99); 3 Mar 2011 11:52:09 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 03 Mar 2011 11:52:09 +0000 X-ASF-Spam-Status: No, hits=1.5 required=5.0 tests=HTML_MESSAGE,RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of sylvain@datastax.com designates 209.85.213.44 as permitted sender) Received: from [209.85.213.44] (HELO mail-yw0-f44.google.com) (209.85.213.44) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 03 Mar 2011 11:52:07 +0000 Received: by ywi6 with SMTP id 6so396435ywi.31 for ; Thu, 03 Mar 2011 03:51:46 -0800 (PST) MIME-Version: 1.0 Received: by 10.147.91.33 with SMTP id t33mr1527908yal.7.1299153104641; Thu, 03 Mar 2011 03:51:44 -0800 (PST) Received: by 10.146.86.1 with HTTP; Thu, 3 Mar 2011 03:51:44 -0800 (PST) X-Originating-IP: [88.183.33.171] In-Reply-To: <55436D78152D3B4FB03FB81F7F808EAAA53320@mbox.impetus.co.in> References: <55436D78152D3B4FB03FB81F7F808EAAA5281F@mbox.impetus.co.in> <55436D78152D3B4FB03FB81F7F808EAAA52F23@mbox.impetus.co.in> <55436D78152D3B4FB03FB81F7F808EAAA53320@mbox.impetus.co.in> Date: Thu, 3 Mar 2011 12:51:44 +0100 Message-ID: Subject: Re: dropping keyspace in cassandra From: Sylvain Lebresne To: user@cassandra.apache.org Cc: Sagar Kohli Content-Type: multipart/alternative; boundary=000e0cd39c964fa0b1049d92a70a --000e0cd39c964fa0b1049d92a70a Content-Type: text/plain; charset=ISO-8859-1 Before a keyspace is dropped, a snapshot is taken (by security). It is your job to remove the snapshot manually. (the tombstones have no play here) -- Sylvain On Thu, Mar 3, 2011 at 12:36 PM, Sagar Kohli wrote: > Hi, > > Probably I got the answer, it is Tombstones in Cassandra. > It is something like soft delete.. > Pl correct me if m wrong > > Regards > sagar > > -----Original Message----- > From: Sagar Kohli [mailto:sagar.kohli@impetus.co.in] > Sent: Thursday, March 03, 2011 11:44 AM > To: user@cassandra.apache.org > Subject: RE: dropping keyspace in cassandra > > Thanks aaron, > > I also restarted Cassandra instance , but data is still there.., is there > any mechanism to claim storage?? if so can you please give some pointer on > that. > > `sagar > > -----Original Message----- > From: Joshua Partogi [mailto:joshua.java@gmail.com] > Sent: Thursday, March 03, 2011 4:45 AM > To: user@cassandra.apache.org > Subject: Re: dropping keyspace in cassandra > > Hi Aaron, > > Does that mean the data will be deleted eventually? Does this also > depends on the compaction configuration? > > Thanks. > > On Thu, Mar 3, 2011 at 7:23 AM, Aaron Morton > wrote: > > What exactly was the folder that was left in place? Dropping a keyspace > does > > not physically delete the data immediately. > > > > Aaron > > On 3/03/2011, at 1:01 AM, Sagar Kohli wrote: > > > > > > > > > > > > Hi , > > > > > > > > I am using Cassandra .70, I have dropped a sample keyspace using command > > "drop keyspace " > > > > Command executed successfully but when I checked key space folder still > > exists there, > > > > Is there any other process to delete data from file system or Cassandra > does > > it automatically?? > > > > > > > > Thanks in advance J > > > > ~sagar > > > > ________________________________ > > Impetus to Present Big Data -- Analytics Solutions and Strategies at TDWI > > World Conference (Feb 13-18) in Las Vegas.We are also bringing cloud > experts > > together at CloudCamp, Delhi on Feb 12. CloudCamp is an unconference > where > > early adopters of Cloud Computing technologies exchange ideas. > > > > Click http://www.impetus.com to know more. > > > > > > NOTE: This message may contain information that is confidential, > > proprietary, privileged or otherwise protected by law. The message is > > intended solely for the named addressee. If received in error, please > > destroy and notify the sender. Any use of this email is prohibited when > > received in error. Impetus does not represent, warrant and/or guarantee, > > that the integrity of this communication has been maintained nor that the > > communication is free of errors, virus, interception or interference. > > > > > > -- > http://twitter.com/jpartogi > > ________________________________ > > Are you exploring a Big Data Strategy ? Listen to this recorded webinar on > Planning your Hadoop/ NoSQL projects for 2011 at > www.impetus.com/featured_webinar?eventid=37 > > Follow us on www.twitter.com/impetuscalling or visit www.impetus.com to > know more. > > > NOTE: This message may contain information that is confidential, > proprietary, privileged or otherwise protected by law. The message is > intended solely for the named addressee. If received in error, please > destroy and notify the sender. Any use of this email is prohibited when > received in error. Impetus does not represent, warrant and/or guarantee, > that the integrity of this communication has been maintained nor that the > communication is free of errors, virus, interception or interference. > > ________________________________ > > Are you exploring a Big Data Strategy ? Listen to this recorded webinar on > Planning your Hadoop/ NoSQL projects for 2011 at > www.impetus.com/featured_webinar?eventid=37 > > Follow us on www.twitter.com/impetuscalling or visit www.impetus.com to > know more. > > > NOTE: This message may contain information that is confidential, > proprietary, privileged or otherwise protected by law. The message is > intended solely for the named addressee. If received in error, please > destroy and notify the sender. Any use of this email is prohibited when > received in error. Impetus does not represent, warrant and/or guarantee, > that the integrity of this communication has been maintained nor that the > communication is free of errors, virus, interception or interference. > --000e0cd39c964fa0b1049d92a70a Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Before a keyspace is dropped, a snapshot is taken (by security). It is your= job to remove the snapshot manually.

(the tombstones ha= ve no play here)

--
Sylvain

On Thu, Mar 3, 2011 at 12:36 PM, Sagar Kohli <sagar.kohli@impetus.co.in> wrote:
Hi,

Probably I got the answer, it is Tombstones in Cassandra.
It is something like soft delete..
Pl correct me if m wrong

Regards
sagar

-----Original Message-----
From: Sagar Kohli [mailto:saga= r.kohli@impetus.co.in]
Sent: Thursday, March 03, 2011 11:44 AM
To: user@cassandra.apache.org<= /a>
Subject: RE: dropping keyspace in c= assandra

Thanks aaron,

I also restarted Cassandra instance , but data is still there.., is there a= ny mechanism to claim storage?? if so can you please give some pointer on t= hat.

`sagar

-----Original Message-----
From: Joshua Partogi [mailto:joshu= a.java@gmail.com]
Sent: Thursday, March 03, 2011 4:45 AM
To: user@cassandra.apache.org<= /a>
Subject: Re: dropping keyspace in cassandra

Hi Aaron,

Does that mean the data will be deleted eventually? Does this also
depends on the compaction configuration?

Thanks.

On Thu, Mar 3, 2011 at 7:23 AM, Aaron Morton <aaron@thelastpickle.com> wrote:
> What exactly was the folder that was left in place? Dropping a keyspac= e does
> not physically delete the data immediately.
>
> Aaron
> On 3/03/2011, at 1:01 AM, Sagar Kohli <sagar.kohli@impetus.co.in> wrote:
>
>
>
>
>
> Hi ,
>
>
>
> I am using Cassandra .70, I have dropped a sample keyspace using comma= nd
> "drop keyspace <sample>"
>
> Command executed successfully but when I checked key space folder stil= l
> exists there,
>
> Is there any other process to delete data from file system or Cassandr= a does
> it automatically??
>
>
>
> Thanks in advance J
>
> ~sagar
>
> ________________________________
> Impetus to Present Big Data -- Analytics Solutions and Strategies at T= DWI
> World Conference (Feb 13-18) in Las Vegas.We are also bringing cloud e= xperts
> together at CloudCamp, Delhi on Feb 12. CloudCamp is an unconference w= here
> early adopters of Cloud Computing technologies exchange ideas.
>
> Click http://www.= impetus.com to know more.
>
>
> NOTE: This message may contain information that is confidential,
> proprietary, privileged or otherwise protected by law. The message is<= br> > intended solely for the named addressee. If received in error, please<= br> > destroy and notify the sender. Any use of this email is prohibited whe= n
> received in error. Impetus does not represent, warrant and/or guarante= e,
> that the integrity of this communication has been maintained nor that = the
> communication is free of errors, virus, interception or interference.<= br> >



--
http://twitter.co= m/jpartogi

________________________________

Are you exploring a Big Data Strategy ? Listen to this recorded webinar on = Planning your Hadoop/ NoSQL projects for 2011 at www.impetus.com/fe= atured_webinar?eventid=3D37

Follow us on www.twitter.com/impetuscalling or visit www.impetus.com to know more.


NOTE: This message may contain information that is confidential, proprietar= y, privileged or otherwise protected by law. The message is intended solely= for the named addressee. If received in error, please destroy and notify t= he sender. Any use of this email is prohibited when received in error. Impe= tus does not represent, warrant and/or guarantee, that the integrity of thi= s communication has been maintained nor that the communication is free of e= rrors, virus, interception or interference.

________________________________

Are you exploring a Big Data Strategy ? Listen to this recorded webinar on = Planning your Hadoop/ NoSQL projects for 2011 at www.impetus.com/fe= atured_webinar?eventid=3D37

Follow us on www.twitter.com/impetuscalling or visit www.impetus.com to know more.


NOTE: This message may contain information that is confidential, proprietar= y, privileged or otherwise protected by law. The message is intended solely= for the named addressee. If received in error, please destroy and notify t= he sender. Any use of this email is prohibited when received in error. Impe= tus does not represent, warrant and/or guarantee, that the integrity of thi= s communication has been maintained nor that the communication is free of e= rrors, virus, interception or interference.

--000e0cd39c964fa0b1049d92a70a--