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From Pradeep Chhetri <prad...@stashaway.com>
Subject Re: Restore cassandra snapshots
Date Mon, 16 Oct 2017 13:10:04 GMT
Quick questions - 1) I have around 2GB of cassandra snapshot - do you
suggest using sstableloader 2) What do you mean by "restore option" - do
you mean copying snapshot dir directly to the nodes of the new cluster ?

On Mon, Oct 16, 2017 at 6:19 PM, Nitan Kainth <nitankainth@gmail.com> wrote:

> Sstableloader is good for small dataset, for bigger snapshots restore is a
> better option
>
> Sent from my iPhone
>
> On Oct 16, 2017, at 7:28 AM, Jean Carlo <jean.jeancarl48@gmail.com> wrote:
>
> HI,
>
> Yes of course, you can use sstableloader from every sstable to your new
> cluster. Actually this is the common procedure. Just check the log of
> cassandra, you shouldn't see any errors of streaming.
>
>
> However, because the fact you are migrating from on cluster of N nodes to
> another of N nodes, I believe you can just copy and paste your data node
> per node and make a nodetool refresh. Checking obviously the correct names
> of your sstables.
> You can check the tokens of your node using nodetool info -T
>
> But I think sstableloader is the easy way :)
>
>
>
>
> Saludos
>
> Jean Carlo
>
> "The best way to predict the future is to invent it" Alan Kay
>
> On Mon, Oct 16, 2017 at 1:55 PM, Pradeep Chhetri <pradeep@stashaway.com>
> wrote:
>
>> Hi Jean,
>>
>> Thank you for the quick response. I am not sure how to achieve that. Can
>> i set the tokens for a node via cqlsh ?
>>
>> I know that i can check the nodetool rings to get the tokens allocated to
>> a node.
>>
>> I was thinking to basically run sstableloader for each of the snapshots
>> and was assuming it will load the complete data properly. Isn't that the
>> case.
>>
>> Thank you.
>>
>> On Mon, Oct 16, 2017 at 5:21 PM, Jean Carlo <jean.jeancarl48@gmail.com>
>> wrote:
>>
>>> Hi,
>>>
>>> Be sure that you have the same tokens distribution than your original
>>> cluster. So if you are going to restore from old node 1 to new node 1, make
>>> sure that the new node and the old node have the same tokens.
>>>
>>>
>>> Saludos
>>>
>>> Jean Carlo
>>>
>>> "The best way to predict the future is to invent it" Alan Kay
>>>
>>> On Mon, Oct 16, 2017 at 1:40 PM, Pradeep Chhetri <pradeep@stashaway.com>
>>> wrote:
>>>
>>>> Hi,
>>>>
>>>> I am trying to restore an empty 3-node cluster with the three snapshots
>>>> taken on another 3-node cluster.
>>>>
>>>> What is the best approach to achieve it without loosing any data
>>>> present in the snapshot.
>>>>
>>>> Thank you.
>>>> Pradeep
>>>>
>>>
>>>
>>
>

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