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Posted to user@cassandra.apache.org by Boris Yen <yu...@gmail.com> on 2012/05/16 04:09:02 UTC
Is nodetool upgradesstables a necessary step for upgrading from 0.8
to 1.0.
Hi,
Our cluster is currently running on 0.8.10, we plan on upgrading it to
1.0.x. We read the document from the datastax website, the final step is to
use nodetool upgradesstables. Since this command might take time to finish,
I wonder if this step could be skip? if I do not upgrade the sstables what
is going to happen?
Thanks
Boris
Re: Is nodetool upgradesstables a necessary step for upgrading from
0.8 to 1.0.
Posted by Boris Yen <yu...@gmail.com>.
Hi Aaron,
Thanks for the information. :)
Boris
On Wed, May 16, 2012 at 5:57 PM, aaron morton <aa...@thelastpickle.com>wrote:
> if I do not upgrade the sstables what is going to happen?
>
> Things will break.
> Things you would normally like to work like repair.
>
> The new version nodes can read old data. But when they stream old data
> files between themselves (during repair) they have to be able to write the
> bloom filter, index etc in the old data file format. Which they cannot do.
>
> Cheers
>
> -----------------
> Aaron Morton
> Freelance Developer
> @aaronmorton
> http://www.thelastpickle.com
>
> On 16/05/2012, at 2:09 PM, Boris Yen wrote:
>
> Hi,
>
> Our cluster is currently running on 0.8.10, we plan on upgrading it to
> 1.0.x. We read the document from the datastax website, the final step is to
> use nodetool upgradesstables. Since this command might take time to finish,
> I wonder if this step could be skip? if I do not upgrade the sstables what
> is going to happen?
>
> Thanks
> Boris
>
>
>
Re: Is nodetool upgradesstables a necessary step for upgrading from 0.8 to 1.0.
Posted by aaron morton <aa...@thelastpickle.com>.
> if I do not upgrade the sstables what is going to happen?
Things will break.
Things you would normally like to work like repair.
The new version nodes can read old data. But when they stream old data files between themselves (during repair) they have to be able to write the bloom filter, index etc in the old data file format. Which they cannot do.
Cheers
-----------------
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com
On 16/05/2012, at 2:09 PM, Boris Yen wrote:
> Hi,
>
> Our cluster is currently running on 0.8.10, we plan on upgrading it to 1.0.x. We read the document from the datastax website, the final step is to use nodetool upgradesstables. Since this command might take time to finish, I wonder if this step could be skip? if I do not upgrade the sstables what is going to happen?
>
> Thanks
> Boris