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Posted to user@ignite.apache.org by ashishb888 <as...@gmail.com> on 2020/09/30 10:47:42 UTC

Purging a partition

Is is possible to purge a Ignite partition? If yes, how can we achieve? and
will it advisable to do so?

BR,
Ashish



--
Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Purging a partition

Posted by Dmitry Lazurkin <di...@gmail.com>.
This leads to problem with indexes.

On 30.09.2020 14:38, Ilya Kasnacheev wrote:
> Hello!
>
> Why would you want to do this?
>
> Try removing part-NNN.bin from your persistence to achieve this. Be
> sure to check in on testing first.
>
> Regards,
> -- 
> Ilya Kasnacheev
>
>
> ср, 30 сент. 2020 г. в 13:47, ashishb888 <ashish.bhosle008@gmail.com
> <ma...@gmail.com>>:
>
>     Is is possible to purge a Ignite partition? If yes, how can we
>     achieve? and
>     will it advisable to do so?
>
>     BR,
>     Ashish
>
>
>
>     --
>     Sent from: http://apache-ignite-users.70518.x6.nabble.com/
>

Re: Purging a partition

Posted by Stephen Darlington <st...@gridgain.com>.
I’ve seen this a few times. Most commonly is where you load in a days worth of data at a time and you want to remove the oldest days data. In some databases, you’d group the data together in a partition and issue a single command to delete the whole partition.

I’m not sure there’s a simple, efficient way to do it in the same way in Ignite — partitions mean something different in distributed systems — but a simpler way to bulk-delete data would be a nice feature.

> On 1 Oct 2020, at 09:47, Vladimir Pligin <vo...@yandex.ru> wrote:
> 
> To be honest it doesn't look trivial.
> I'm not sure at the moment why one could need that.
> Could you please describe your use-case?
> It will definitely help us to design a solution somehow.
> 
> 
> 
> --
> Sent from: http://apache-ignite-users.70518.x6.nabble.com/



Re: Purging a partition

Posted by Dmitry Lazurkin <di...@gmail.com>.
May be: ScanQuery with partition number and cache.localClearAll for keys.

On 01.10.2020 11:47, Vladimir Pligin wrote:
> To be honest it doesn't look trivial.
> I'm not sure at the moment why one could need that.
> Could you please describe your use-case?
> It will definitely help us to design a solution somehow.
>
>
>
> --
> Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Purging a partition

Posted by Vladimir Pligin <vo...@yandex.ru>.
To be honest it doesn't look trivial.
I'm not sure at the moment why one could need that.
Could you please describe your use-case?
It will definitely help us to design a solution somehow.



--
Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Purging a partition

Posted by ashishb888 <as...@gmail.com>.
Thank you!

Actually I do not use persistence, and all the data stored in the RAM.
Do we have similar things for the data stored in the RAM?

BR,
Ashish



--
Sent from: http://apache-ignite-users.70518.x6.nabble.com/

Re: Purging a partition

Posted by Ilya Kasnacheev <il...@gmail.com>.
Hello!

Why would you want to do this?

Try removing part-NNN.bin from your persistence to achieve this. Be sure to
check in on testing first.

Regards,
-- 
Ilya Kasnacheev


ср, 30 сент. 2020 г. в 13:47, ashishb888 <as...@gmail.com>:

> Is is possible to purge a Ignite partition? If yes, how can we achieve? and
> will it advisable to do so?
>
> BR,
> Ashish
>
>
>
> --
> Sent from: http://apache-ignite-users.70518.x6.nabble.com/
>