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Posted to user@cassandra.apache.org by Michael Fong <mi...@ruckuswireless.com> on 2017/03/07 03:13:50 UTC

Is it possible to recover a deleted-in-future record?

Hi, all,


We recently encountered an issue in production that some records were mysteriously deleted with a timestamp 100+ years from now. Everything is normal as of now, and how the deletion happened and accuracy of system timestamp at that moment are unknown. We were wondering if there is a general way to recover the mysteriously-deleted data when the timestamp meta is screwed up.

Thanks in advanced,

Regards,

Michael Fong

Re: Is it possible to recover a deleted-in-future record?

Posted by Arvydas Jonusonis <ar...@gmail.com>.

Use nodetool getsstables to discover which sstables contain the data and
then dump it with sstable2json -k <key> to explore the content of the
data/mutations for those keys.

Arvydas

On Tue, Mar 7, 2017 at 4:13 AM, Michael Fong <
michael.fong@ruckuswireless.com> wrote:

> Hi, all,
>
>
>
>
>
> We recently encountered an issue in production that some records were
> mysteriously deleted with a timestamp 100+ years from now. Everything is
> normal as of now, and how the deletion happened and accuracy of system
> timestamp at that moment are unknown. We were wondering if there is a
> general way to recover the mysteriously-deleted data when the timestamp
> meta is screwed up.
>
>
>
> Thanks in advanced,
>
>
>
> Regards,
>
>
>
> Michael Fong
>