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Posted to user@cassandra.apache.org by "B. Todd Burruss" <bt...@gmail.com> on 2012/10/22 18:43:42 UTC
tombstones and their data
if a node, X, has a tombstone marking deleted data, when can node X
remove the data - not the tombstone, but the data? i understand the
tombstone cannot be removed until GCGraceSeconds has passed, but it
seems the data could be compacted away at any time.
Re: tombstones and their data
Posted by "B. Todd Burruss" <bt...@gmail.com>.
excellent, thx
On Mon, Oct 22, 2012 at 10:13 AM, Sylvain Lebresne <sy...@datastax.com> wrote:
> The data does get removed as soon as possible (as soon as it is
> compacted with the tombstone that is).
>
> --
> Sylvain
>
> On Mon, Oct 22, 2012 at 7:03 PM, Hiller, Dean <De...@nrel.gov> wrote:
>> My understanding is any time from that node. Another node may have a
>> different existing value and tombstone vs. that existing data(most recent
>> timestamp wins). Ie. The data is not needed on that node so compaction
>> should be getting rid of it, but I never confirmed thisŠ.I hope you get
>> confirmation.
>>
>> Dean
>>
>> On 10/22/12 10:43 AM, "B. Todd Burruss" <bt...@gmail.com> wrote:
>>
>>>if a node, X, has a tombstone marking deleted data, when can node X
>>>remove the data - not the tombstone, but the data? i understand the
>>>tombstone cannot be removed until GCGraceSeconds has passed, but it
>>>seems the data could be compacted away at any time.
>>
Re: tombstones and their data
Posted by Sylvain Lebresne <sy...@datastax.com>.
The data does get removed as soon as possible (as soon as it is
compacted with the tombstone that is).
--
Sylvain
On Mon, Oct 22, 2012 at 7:03 PM, Hiller, Dean <De...@nrel.gov> wrote:
> My understanding is any time from that node. Another node may have a
> different existing value and tombstone vs. that existing data(most recent
> timestamp wins). Ie. The data is not needed on that node so compaction
> should be getting rid of it, but I never confirmed thisŠ.I hope you get
> confirmation.
>
> Dean
>
> On 10/22/12 10:43 AM, "B. Todd Burruss" <bt...@gmail.com> wrote:
>
>>if a node, X, has a tombstone marking deleted data, when can node X
>>remove the data - not the tombstone, but the data? i understand the
>>tombstone cannot be removed until GCGraceSeconds has passed, but it
>>seems the data could be compacted away at any time.
>
Re: tombstones and their data
Posted by "Hiller, Dean" <De...@nrel.gov>.
My understanding is any time from that node. Another node may have a
different existing value and tombstone vs. that existing data(most recent
timestamp wins). Ie. The data is not needed on that node so compaction
should be getting rid of it, but I never confirmed thisŠ.I hope you get
confirmation.
Dean
On 10/22/12 10:43 AM, "B. Todd Burruss" <bt...@gmail.com> wrote:
>if a node, X, has a tombstone marking deleted data, when can node X
>remove the data - not the tombstone, but the data? i understand the
>tombstone cannot be removed until GCGraceSeconds has passed, but it
>seems the data could be compacted away at any time.